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WIP FPC-III support
[linux/fpc-iii.git] / drivers / gpu / drm / i915 / display / intel_ddi.c
blob92940a0c5ef8fa77c2d5664fcd2d40b864416d2f
1 /*
2 * Copyright © 2012 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 * Eugeni Dodonov <eugeni.dodonov@intel.com>
25 *
26 */
27
28 #include <drm/drm_scdc_helper.h>
29
30 #include "i915_drv.h"
31 #include "i915_trace.h"
32 #include "intel_audio.h"
33 #include "intel_combo_phy.h"
34 #include "intel_connector.h"
35 #include "intel_ddi.h"
36 #include "intel_display_types.h"
37 #include "intel_dp.h"
38 #include "intel_dp_mst.h"
39 #include "intel_dp_link_training.h"
40 #include "intel_dpio_phy.h"
41 #include "intel_dsi.h"
42 #include "intel_fifo_underrun.h"
43 #include "intel_gmbus.h"
44 #include "intel_hdcp.h"
45 #include "intel_hdmi.h"
46 #include "intel_hotplug.h"
47 #include "intel_lspcon.h"
48 #include "intel_panel.h"
49 #include "intel_psr.h"
50 #include "intel_sprite.h"
51 #include "intel_tc.h"
52 #include "intel_vdsc.h"
53
54 struct ddi_buf_trans {
55 u32 trans1; /* balance leg enable, de-emph level */
56 u32 trans2; /* vref sel, vswing */
57 u8 i_boost; /* SKL: I_boost; valid: 0x0, 0x1, 0x3, 0x7 */
58 };
59
60 static const u8 index_to_dp_signal_levels[] = {
61 [0] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_0,
62 [1] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_1,
63 [2] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_2,
64 [3] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_3,
65 [4] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_0,
66 [5] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_1,
67 [6] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_2,
68 [7] = DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_0,
69 [8] = DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_1,
70 [9] = DP_TRAIN_VOLTAGE_SWING_LEVEL_3 | DP_TRAIN_PRE_EMPH_LEVEL_0,
71 };
72
73 /* HDMI/DVI modes ignore everything but the last 2 items. So we share
74 * them for both DP and FDI transports, allowing those ports to
75 * automatically adapt to HDMI connections as well
76 */
77 static const struct ddi_buf_trans hsw_ddi_translations_dp[] = {
78 { 0x00FFFFFF, 0x0006000E, 0x0 },
79 { 0x00D75FFF, 0x0005000A, 0x0 },
80 { 0x00C30FFF, 0x00040006, 0x0 },
81 { 0x80AAAFFF, 0x000B0000, 0x0 },
82 { 0x00FFFFFF, 0x0005000A, 0x0 },
83 { 0x00D75FFF, 0x000C0004, 0x0 },
84 { 0x80C30FFF, 0x000B0000, 0x0 },
85 { 0x00FFFFFF, 0x00040006, 0x0 },
86 { 0x80D75FFF, 0x000B0000, 0x0 },
87 };
88
89 static const struct ddi_buf_trans hsw_ddi_translations_fdi[] = {
90 { 0x00FFFFFF, 0x0007000E, 0x0 },
91 { 0x00D75FFF, 0x000F000A, 0x0 },
92 { 0x00C30FFF, 0x00060006, 0x0 },
93 { 0x00AAAFFF, 0x001E0000, 0x0 },
94 { 0x00FFFFFF, 0x000F000A, 0x0 },
95 { 0x00D75FFF, 0x00160004, 0x0 },
96 { 0x00C30FFF, 0x001E0000, 0x0 },
97 { 0x00FFFFFF, 0x00060006, 0x0 },
98 { 0x00D75FFF, 0x001E0000, 0x0 },
99 };
100
101 static const struct ddi_buf_trans hsw_ddi_translations_hdmi[] = {
102 /* Idx NT mV d T mV d db */
103 { 0x00FFFFFF, 0x0006000E, 0x0 },/* 0: 400 400 0 */
104 { 0x00E79FFF, 0x000E000C, 0x0 },/* 1: 400 500 2 */
105 { 0x00D75FFF, 0x0005000A, 0x0 },/* 2: 400 600 3.5 */
106 { 0x00FFFFFF, 0x0005000A, 0x0 },/* 3: 600 600 0 */
107 { 0x00E79FFF, 0x001D0007, 0x0 },/* 4: 600 750 2 */
108 { 0x00D75FFF, 0x000C0004, 0x0 },/* 5: 600 900 3.5 */
109 { 0x00FFFFFF, 0x00040006, 0x0 },/* 6: 800 800 0 */
110 { 0x80E79FFF, 0x00030002, 0x0 },/* 7: 800 1000 2 */
111 { 0x00FFFFFF, 0x00140005, 0x0 },/* 8: 850 850 0 */
112 { 0x00FFFFFF, 0x000C0004, 0x0 },/* 9: 900 900 0 */
113 { 0x00FFFFFF, 0x001C0003, 0x0 },/* 10: 950 950 0 */
114 { 0x80FFFFFF, 0x00030002, 0x0 },/* 11: 1000 1000 0 */
115 };
116
117 static const struct ddi_buf_trans bdw_ddi_translations_edp[] = {
118 { 0x00FFFFFF, 0x00000012, 0x0 },
119 { 0x00EBAFFF, 0x00020011, 0x0 },
120 { 0x00C71FFF, 0x0006000F, 0x0 },
121 { 0x00AAAFFF, 0x000E000A, 0x0 },
122 { 0x00FFFFFF, 0x00020011, 0x0 },
123 { 0x00DB6FFF, 0x0005000F, 0x0 },
124 { 0x00BEEFFF, 0x000A000C, 0x0 },
125 { 0x00FFFFFF, 0x0005000F, 0x0 },
126 { 0x00DB6FFF, 0x000A000C, 0x0 },
127 };
128
129 static const struct ddi_buf_trans bdw_ddi_translations_dp[] = {
130 { 0x00FFFFFF, 0x0007000E, 0x0 },
131 { 0x00D75FFF, 0x000E000A, 0x0 },
132 { 0x00BEFFFF, 0x00140006, 0x0 },
133 { 0x80B2CFFF, 0x001B0002, 0x0 },
134 { 0x00FFFFFF, 0x000E000A, 0x0 },
135 { 0x00DB6FFF, 0x00160005, 0x0 },
136 { 0x80C71FFF, 0x001A0002, 0x0 },
137 { 0x00F7DFFF, 0x00180004, 0x0 },
138 { 0x80D75FFF, 0x001B0002, 0x0 },
139 };
140
141 static const struct ddi_buf_trans bdw_ddi_translations_fdi[] = {
142 { 0x00FFFFFF, 0x0001000E, 0x0 },
143 { 0x00D75FFF, 0x0004000A, 0x0 },
144 { 0x00C30FFF, 0x00070006, 0x0 },
145 { 0x00AAAFFF, 0x000C0000, 0x0 },
146 { 0x00FFFFFF, 0x0004000A, 0x0 },
147 { 0x00D75FFF, 0x00090004, 0x0 },
148 { 0x00C30FFF, 0x000C0000, 0x0 },
149 { 0x00FFFFFF, 0x00070006, 0x0 },
150 { 0x00D75FFF, 0x000C0000, 0x0 },
151 };
152
153 static const struct ddi_buf_trans bdw_ddi_translations_hdmi[] = {
154 /* Idx NT mV d T mV df db */
155 { 0x00FFFFFF, 0x0007000E, 0x0 },/* 0: 400 400 0 */
156 { 0x00D75FFF, 0x000E000A, 0x0 },/* 1: 400 600 3.5 */
157 { 0x00BEFFFF, 0x00140006, 0x0 },/* 2: 400 800 6 */
158 { 0x00FFFFFF, 0x0009000D, 0x0 },/* 3: 450 450 0 */
159 { 0x00FFFFFF, 0x000E000A, 0x0 },/* 4: 600 600 0 */
160 { 0x00D7FFFF, 0x00140006, 0x0 },/* 5: 600 800 2.5 */
161 { 0x80CB2FFF, 0x001B0002, 0x0 },/* 6: 600 1000 4.5 */
162 { 0x00FFFFFF, 0x00140006, 0x0 },/* 7: 800 800 0 */
163 { 0x80E79FFF, 0x001B0002, 0x0 },/* 8: 800 1000 2 */
164 { 0x80FFFFFF, 0x001B0002, 0x0 },/* 9: 1000 1000 0 */
165 };
166
167 /* Skylake H and S */
168 static const struct ddi_buf_trans skl_ddi_translations_dp[] = {
169 { 0x00002016, 0x000000A0, 0x0 },
170 { 0x00005012, 0x0000009B, 0x0 },
171 { 0x00007011, 0x00000088, 0x0 },
172 { 0x80009010, 0x000000C0, 0x1 },
173 { 0x00002016, 0x0000009B, 0x0 },
174 { 0x00005012, 0x00000088, 0x0 },
175 { 0x80007011, 0x000000C0, 0x1 },
176 { 0x00002016, 0x000000DF, 0x0 },
177 { 0x80005012, 0x000000C0, 0x1 },
178 };
179
180 /* Skylake U */
181 static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = {
182 { 0x0000201B, 0x000000A2, 0x0 },
183 { 0x00005012, 0x00000088, 0x0 },
184 { 0x80007011, 0x000000CD, 0x1 },
185 { 0x80009010, 0x000000C0, 0x1 },
186 { 0x0000201B, 0x0000009D, 0x0 },
187 { 0x80005012, 0x000000C0, 0x1 },
188 { 0x80007011, 0x000000C0, 0x1 },
189 { 0x00002016, 0x00000088, 0x0 },
190 { 0x80005012, 0x000000C0, 0x1 },
191 };
192
193 /* Skylake Y */
194 static const struct ddi_buf_trans skl_y_ddi_translations_dp[] = {
195 { 0x00000018, 0x000000A2, 0x0 },
196 { 0x00005012, 0x00000088, 0x0 },
197 { 0x80007011, 0x000000CD, 0x3 },
198 { 0x80009010, 0x000000C0, 0x3 },
199 { 0x00000018, 0x0000009D, 0x0 },
200 { 0x80005012, 0x000000C0, 0x3 },
201 { 0x80007011, 0x000000C0, 0x3 },
202 { 0x00000018, 0x00000088, 0x0 },
203 { 0x80005012, 0x000000C0, 0x3 },
204 };
205
206 /* Kabylake H and S */
207 static const struct ddi_buf_trans kbl_ddi_translations_dp[] = {
208 { 0x00002016, 0x000000A0, 0x0 },
209 { 0x00005012, 0x0000009B, 0x0 },
210 { 0x00007011, 0x00000088, 0x0 },
211 { 0x80009010, 0x000000C0, 0x1 },
212 { 0x00002016, 0x0000009B, 0x0 },
213 { 0x00005012, 0x00000088, 0x0 },
214 { 0x80007011, 0x000000C0, 0x1 },
215 { 0x00002016, 0x00000097, 0x0 },
216 { 0x80005012, 0x000000C0, 0x1 },
217 };
218
219 /* Kabylake U */
220 static const struct ddi_buf_trans kbl_u_ddi_translations_dp[] = {
221 { 0x0000201B, 0x000000A1, 0x0 },
222 { 0x00005012, 0x00000088, 0x0 },
223 { 0x80007011, 0x000000CD, 0x3 },
224 { 0x80009010, 0x000000C0, 0x3 },
225 { 0x0000201B, 0x0000009D, 0x0 },
226 { 0x80005012, 0x000000C0, 0x3 },
227 { 0x80007011, 0x000000C0, 0x3 },
228 { 0x00002016, 0x0000004F, 0x0 },
229 { 0x80005012, 0x000000C0, 0x3 },
230 };
231
232 /* Kabylake Y */
233 static const struct ddi_buf_trans kbl_y_ddi_translations_dp[] = {
234 { 0x00001017, 0x000000A1, 0x0 },
235 { 0x00005012, 0x00000088, 0x0 },
236 { 0x80007011, 0x000000CD, 0x3 },
237 { 0x8000800F, 0x000000C0, 0x3 },
238 { 0x00001017, 0x0000009D, 0x0 },
239 { 0x80005012, 0x000000C0, 0x3 },
240 { 0x80007011, 0x000000C0, 0x3 },
241 { 0x00001017, 0x0000004C, 0x0 },
242 { 0x80005012, 0x000000C0, 0x3 },
243 };
244
245 /*
246 * Skylake/Kabylake H and S
247 * eDP 1.4 low vswing translation parameters
248 */
249 static const struct ddi_buf_trans skl_ddi_translations_edp[] = {
250 { 0x00000018, 0x000000A8, 0x0 },
251 { 0x00004013, 0x000000A9, 0x0 },
252 { 0x00007011, 0x000000A2, 0x0 },
253 { 0x00009010, 0x0000009C, 0x0 },
254 { 0x00000018, 0x000000A9, 0x0 },
255 { 0x00006013, 0x000000A2, 0x0 },
256 { 0x00007011, 0x000000A6, 0x0 },
257 { 0x00000018, 0x000000AB, 0x0 },
258 { 0x00007013, 0x0000009F, 0x0 },
259 { 0x00000018, 0x000000DF, 0x0 },
260 };
261
262 /*
263 * Skylake/Kabylake U
264 * eDP 1.4 low vswing translation parameters
265 */
266 static const struct ddi_buf_trans skl_u_ddi_translations_edp[] = {
267 { 0x00000018, 0x000000A8, 0x0 },
268 { 0x00004013, 0x000000A9, 0x0 },
269 { 0x00007011, 0x000000A2, 0x0 },
270 { 0x00009010, 0x0000009C, 0x0 },
271 { 0x00000018, 0x000000A9, 0x0 },
272 { 0x00006013, 0x000000A2, 0x0 },
273 { 0x00007011, 0x000000A6, 0x0 },
274 { 0x00002016, 0x000000AB, 0x0 },
275 { 0x00005013, 0x0000009F, 0x0 },
276 { 0x00000018, 0x000000DF, 0x0 },
277 };
278
279 /*
280 * Skylake/Kabylake Y
281 * eDP 1.4 low vswing translation parameters
282 */
283 static const struct ddi_buf_trans skl_y_ddi_translations_edp[] = {
284 { 0x00000018, 0x000000A8, 0x0 },
285 { 0x00004013, 0x000000AB, 0x0 },
286 { 0x00007011, 0x000000A4, 0x0 },
287 { 0x00009010, 0x000000DF, 0x0 },
288 { 0x00000018, 0x000000AA, 0x0 },
289 { 0x00006013, 0x000000A4, 0x0 },
290 { 0x00007011, 0x0000009D, 0x0 },
291 { 0x00000018, 0x000000A0, 0x0 },
292 { 0x00006012, 0x000000DF, 0x0 },
293 { 0x00000018, 0x0000008A, 0x0 },
294 };
295
296 /* Skylake/Kabylake U, H and S */
297 static const struct ddi_buf_trans skl_ddi_translations_hdmi[] = {
298 { 0x00000018, 0x000000AC, 0x0 },
299 { 0x00005012, 0x0000009D, 0x0 },
300 { 0x00007011, 0x00000088, 0x0 },
301 { 0x00000018, 0x000000A1, 0x0 },
302 { 0x00000018, 0x00000098, 0x0 },
303 { 0x00004013, 0x00000088, 0x0 },
304 { 0x80006012, 0x000000CD, 0x1 },
305 { 0x00000018, 0x000000DF, 0x0 },
306 { 0x80003015, 0x000000CD, 0x1 }, /* Default */
307 { 0x80003015, 0x000000C0, 0x1 },
308 { 0x80000018, 0x000000C0, 0x1 },
309 };
310
311 /* Skylake/Kabylake Y */
312 static const struct ddi_buf_trans skl_y_ddi_translations_hdmi[] = {
313 { 0x00000018, 0x000000A1, 0x0 },
314 { 0x00005012, 0x000000DF, 0x0 },
315 { 0x80007011, 0x000000CB, 0x3 },
316 { 0x00000018, 0x000000A4, 0x0 },
317 { 0x00000018, 0x0000009D, 0x0 },
318 { 0x00004013, 0x00000080, 0x0 },
319 { 0x80006013, 0x000000C0, 0x3 },
320 { 0x00000018, 0x0000008A, 0x0 },
321 { 0x80003015, 0x000000C0, 0x3 }, /* Default */
322 { 0x80003015, 0x000000C0, 0x3 },
323 { 0x80000018, 0x000000C0, 0x3 },
324 };
325
326 struct bxt_ddi_buf_trans {
327 u8 margin; /* swing value */
328 u8 scale; /* scale value */
329 u8 enable; /* scale enable */
330 u8 deemphasis;
331 };
332
333 static const struct bxt_ddi_buf_trans bxt_ddi_translations_dp[] = {
334 /* Idx NT mV diff db */
335 { 52, 0x9A, 0, 128, }, /* 0: 400 0 */
336 { 78, 0x9A, 0, 85, }, /* 1: 400 3.5 */
337 { 104, 0x9A, 0, 64, }, /* 2: 400 6 */
338 { 154, 0x9A, 0, 43, }, /* 3: 400 9.5 */
339 { 77, 0x9A, 0, 128, }, /* 4: 600 0 */
340 { 116, 0x9A, 0, 85, }, /* 5: 600 3.5 */
341 { 154, 0x9A, 0, 64, }, /* 6: 600 6 */
342 { 102, 0x9A, 0, 128, }, /* 7: 800 0 */
343 { 154, 0x9A, 0, 85, }, /* 8: 800 3.5 */
344 { 154, 0x9A, 1, 128, }, /* 9: 1200 0 */
345 };
346
347 static const struct bxt_ddi_buf_trans bxt_ddi_translations_edp[] = {
348 /* Idx NT mV diff db */
349 { 26, 0, 0, 128, }, /* 0: 200 0 */
350 { 38, 0, 0, 112, }, /* 1: 200 1.5 */
351 { 48, 0, 0, 96, }, /* 2: 200 4 */
352 { 54, 0, 0, 69, }, /* 3: 200 6 */
353 { 32, 0, 0, 128, }, /* 4: 250 0 */
354 { 48, 0, 0, 104, }, /* 5: 250 1.5 */
355 { 54, 0, 0, 85, }, /* 6: 250 4 */
356 { 43, 0, 0, 128, }, /* 7: 300 0 */
357 { 54, 0, 0, 101, }, /* 8: 300 1.5 */
358 { 48, 0, 0, 128, }, /* 9: 300 0 */
359 };
360
361 /* BSpec has 2 recommended values - entries 0 and 8.
362 * Using the entry with higher vswing.
363 */
364 static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = {
365 /* Idx NT mV diff db */
366 { 52, 0x9A, 0, 128, }, /* 0: 400 0 */
367 { 52, 0x9A, 0, 85, }, /* 1: 400 3.5 */
368 { 52, 0x9A, 0, 64, }, /* 2: 400 6 */
369 { 42, 0x9A, 0, 43, }, /* 3: 400 9.5 */
370 { 77, 0x9A, 0, 128, }, /* 4: 600 0 */
371 { 77, 0x9A, 0, 85, }, /* 5: 600 3.5 */
372 { 77, 0x9A, 0, 64, }, /* 6: 600 6 */
373 { 102, 0x9A, 0, 128, }, /* 7: 800 0 */
374 { 102, 0x9A, 0, 85, }, /* 8: 800 3.5 */
375 { 154, 0x9A, 1, 128, }, /* 9: 1200 0 */
376 };
377
378 struct cnl_ddi_buf_trans {
379 u8 dw2_swing_sel;
380 u8 dw7_n_scalar;
381 u8 dw4_cursor_coeff;
382 u8 dw4_post_cursor_2;
383 u8 dw4_post_cursor_1;
384 };
385
386 /* Voltage Swing Programming for VccIO 0.85V for DP */
387 static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_0_85V[] = {
388 /* NT mV Trans mV db */
389 { 0xA, 0x5D, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
390 { 0xA, 0x6A, 0x38, 0x00, 0x07 }, /* 350 500 3.1 */
391 { 0xB, 0x7A, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */
392 { 0x6, 0x7C, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */
393 { 0xA, 0x69, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
394 { 0xB, 0x7A, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
395 { 0x6, 0x7C, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */
396 { 0xB, 0x7D, 0x3C, 0x00, 0x03 }, /* 650 725 0.9 */
397 { 0x6, 0x7C, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */
398 { 0x6, 0x7B, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
399 };
400
401 /* Voltage Swing Programming for VccIO 0.85V for HDMI */
402 static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_0_85V[] = {
403 /* NT mV Trans mV db */
404 { 0xA, 0x60, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */
405 { 0xB, 0x73, 0x36, 0x00, 0x09 }, /* 450 650 3.2 */
406 { 0x6, 0x7F, 0x31, 0x00, 0x0E }, /* 450 850 5.5 */
407 { 0xB, 0x73, 0x3F, 0x00, 0x00 }, /* 650 650 0.0 */
408 { 0x6, 0x7F, 0x37, 0x00, 0x08 }, /* 650 850 2.3 */
409 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 850 850 0.0 */
410 { 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
411 };
412
413 /* Voltage Swing Programming for VccIO 0.85V for eDP */
414 static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_0_85V[] = {
415 /* NT mV Trans mV db */
416 { 0xA, 0x66, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */
417 { 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */
418 { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */
419 { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */
420 { 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */
421 { 0xA, 0x66, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */
422 { 0xB, 0x70, 0x3C, 0x00, 0x03 }, /* 460 600 2.3 */
423 { 0xC, 0x75, 0x3C, 0x00, 0x03 }, /* 537 700 2.3 */
424 { 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
425 };
426
427 /* Voltage Swing Programming for VccIO 0.95V for DP */
428 static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_0_95V[] = {
429 /* NT mV Trans mV db */
430 { 0xA, 0x5D, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
431 { 0xA, 0x6A, 0x38, 0x00, 0x07 }, /* 350 500 3.1 */
432 { 0xB, 0x7A, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */
433 { 0x6, 0x7C, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */
434 { 0xA, 0x69, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
435 { 0xB, 0x7A, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
436 { 0x6, 0x7C, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */
437 { 0xB, 0x7D, 0x3C, 0x00, 0x03 }, /* 650 725 0.9 */
438 { 0x6, 0x7C, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */
439 { 0x6, 0x7B, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
440 };
441
442 /* Voltage Swing Programming for VccIO 0.95V for HDMI */
443 static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_0_95V[] = {
444 /* NT mV Trans mV db */
445 { 0xA, 0x5C, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
446 { 0xB, 0x69, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */
447 { 0x5, 0x76, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */
448 { 0xA, 0x5E, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */
449 { 0xB, 0x69, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */
450 { 0xB, 0x79, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
451 { 0x6, 0x7D, 0x32, 0x00, 0x0D }, /* 600 1000 4.4 */
452 { 0x5, 0x76, 0x3F, 0x00, 0x00 }, /* 800 800 0.0 */
453 { 0x6, 0x7D, 0x39, 0x00, 0x06 }, /* 800 1000 1.9 */
454 { 0x6, 0x7F, 0x39, 0x00, 0x06 }, /* 850 1050 1.8 */
455 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */
456 };
457
458 /* Voltage Swing Programming for VccIO 0.95V for eDP */
459 static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_0_95V[] = {
460 /* NT mV Trans mV db */
461 { 0xA, 0x61, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */
462 { 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */
463 { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */
464 { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */
465 { 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */
466 { 0xA, 0x61, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */
467 { 0xB, 0x68, 0x39, 0x00, 0x06 }, /* 460 600 2.3 */
468 { 0xC, 0x6E, 0x39, 0x00, 0x06 }, /* 537 700 2.3 */
469 { 0x4, 0x7F, 0x3A, 0x00, 0x05 }, /* 460 600 2.3 */
470 { 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
471 };
472
473 /* Voltage Swing Programming for VccIO 1.05V for DP */
474 static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_1_05V[] = {
475 /* NT mV Trans mV db */
476 { 0xA, 0x58, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
477 { 0xB, 0x64, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */
478 { 0x5, 0x70, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */
479 { 0x6, 0x7F, 0x2C, 0x00, 0x13 }, /* 400 1050 8.4 */
480 { 0xB, 0x64, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */
481 { 0x5, 0x73, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
482 { 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 550 1050 5.6 */
483 { 0x5, 0x76, 0x3E, 0x00, 0x01 }, /* 850 900 0.5 */
484 { 0x6, 0x7F, 0x36, 0x00, 0x09 }, /* 750 1050 2.9 */
485 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */
486 };
487
488 /* Voltage Swing Programming for VccIO 1.05V for HDMI */
489 static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_1_05V[] = {
490 /* NT mV Trans mV db */
491 { 0xA, 0x58, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
492 { 0xB, 0x64, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */
493 { 0x5, 0x70, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */
494 { 0xA, 0x5B, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */
495 { 0xB, 0x64, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */
496 { 0x5, 0x73, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
497 { 0x6, 0x7C, 0x32, 0x00, 0x0D }, /* 600 1000 4.4 */
498 { 0x5, 0x70, 0x3F, 0x00, 0x00 }, /* 800 800 0.0 */
499 { 0x6, 0x7C, 0x39, 0x00, 0x06 }, /* 800 1000 1.9 */
500 { 0x6, 0x7F, 0x39, 0x00, 0x06 }, /* 850 1050 1.8 */
501 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */
502 };
503
504 /* Voltage Swing Programming for VccIO 1.05V for eDP */
505 static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_1_05V[] = {
506 /* NT mV Trans mV db */
507 { 0xA, 0x5E, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */
508 { 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */
509 { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */
510 { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */
511 { 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */
512 { 0xA, 0x5E, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */
513 { 0xB, 0x64, 0x39, 0x00, 0x06 }, /* 460 600 2.3 */
514 { 0xE, 0x6A, 0x39, 0x00, 0x06 }, /* 537 700 2.3 */
515 { 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
516 };
517
518 /* icl_combo_phy_ddi_translations */
519 static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_dp_hbr2[] = {
520 /* NT mV Trans mV db */
521 { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
522 { 0xA, 0x4F, 0x37, 0x00, 0x08 }, /* 350 500 3.1 */
523 { 0xC, 0x71, 0x2F, 0x00, 0x10 }, /* 350 700 6.0 */
524 { 0x6, 0x7F, 0x2B, 0x00, 0x14 }, /* 350 900 8.2 */
525 { 0xA, 0x4C, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
526 { 0xC, 0x73, 0x34, 0x00, 0x0B }, /* 500 700 2.9 */
527 { 0x6, 0x7F, 0x2F, 0x00, 0x10 }, /* 500 900 5.1 */
528 { 0xC, 0x6C, 0x3C, 0x00, 0x03 }, /* 650 700 0.6 */
529 { 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 900 3.5 */
530 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
531 };
532
533 static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_edp_hbr2[] = {
534 /* NT mV Trans mV db */
535 { 0x0, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 200 0.0 */
536 { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 200 250 1.9 */
537 { 0x1, 0x7F, 0x33, 0x00, 0x0C }, /* 200 300 3.5 */
538 { 0x9, 0x7F, 0x31, 0x00, 0x0E }, /* 200 350 4.9 */
539 { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 250 0.0 */
540 { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 250 300 1.6 */
541 { 0x9, 0x7F, 0x35, 0x00, 0x0A }, /* 250 350 2.9 */
542 { 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 300 300 0.0 */
543 { 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 300 350 1.3 */
544 { 0x9, 0x7F, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
545 };
546
547 static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_edp_hbr3[] = {
548 /* NT mV Trans mV db */
549 { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
550 { 0xA, 0x4F, 0x37, 0x00, 0x08 }, /* 350 500 3.1 */
551 { 0xC, 0x71, 0x2F, 0x00, 0x10 }, /* 350 700 6.0 */
552 { 0x6, 0x7F, 0x2B, 0x00, 0x14 }, /* 350 900 8.2 */
553 { 0xA, 0x4C, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
554 { 0xC, 0x73, 0x34, 0x00, 0x0B }, /* 500 700 2.9 */
555 { 0x6, 0x7F, 0x2F, 0x00, 0x10 }, /* 500 900 5.1 */
556 { 0xC, 0x6C, 0x3C, 0x00, 0x03 }, /* 650 700 0.6 */
557 { 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 900 3.5 */
558 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
559 };
560
561 static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_hdmi[] = {
562 /* NT mV Trans mV db */
563 { 0xA, 0x60, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */
564 { 0xB, 0x73, 0x36, 0x00, 0x09 }, /* 450 650 3.2 */
565 { 0x6, 0x7F, 0x31, 0x00, 0x0E }, /* 450 850 5.5 */
566 { 0xB, 0x73, 0x3F, 0x00, 0x00 }, /* 650 650 0.0 ALS */
567 { 0x6, 0x7F, 0x37, 0x00, 0x08 }, /* 650 850 2.3 */
568 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 850 850 0.0 */
569 { 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
570 };
571
572 static const struct cnl_ddi_buf_trans ehl_combo_phy_ddi_translations_dp[] = {
573 /* NT mV Trans mV db */
574 { 0xA, 0x33, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
575 { 0xA, 0x47, 0x36, 0x00, 0x09 }, /* 350 500 3.1 */
576 { 0xC, 0x64, 0x34, 0x00, 0x0B }, /* 350 700 6.0 */
577 { 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 350 900 8.2 */
578 { 0xA, 0x46, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
579 { 0xC, 0x64, 0x38, 0x00, 0x07 }, /* 500 700 2.9 */
580 { 0x6, 0x7F, 0x32, 0x00, 0x0D }, /* 500 900 5.1 */
581 { 0xC, 0x61, 0x3F, 0x00, 0x00 }, /* 650 700 0.6 */
582 { 0x6, 0x7F, 0x38, 0x00, 0x07 }, /* 600 900 3.5 */
583 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
584 };
585
586 static const struct cnl_ddi_buf_trans jsl_combo_phy_ddi_translations_edp_hbr[] = {
587 /* NT mV Trans mV db */
588 { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 200 0.0 */
589 { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 200 250 1.9 */
590 { 0x1, 0x7F, 0x33, 0x00, 0x0C }, /* 200 300 3.5 */
591 { 0xA, 0x35, 0x36, 0x00, 0x09 }, /* 200 350 4.9 */
592 { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 250 0.0 */
593 { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 250 300 1.6 */
594 { 0xA, 0x35, 0x35, 0x00, 0x0A }, /* 250 350 2.9 */
595 { 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 300 300 0.0 */
596 { 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 300 350 1.3 */
597 { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
598 };
599
600 static const struct cnl_ddi_buf_trans jsl_combo_phy_ddi_translations_edp_hbr2[] = {
601 /* NT mV Trans mV db */
602 { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 200 0.0 */
603 { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 250 1.9 */
604 { 0x1, 0x7F, 0x3D, 0x00, 0x02 }, /* 200 300 3.5 */
605 { 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 200 350 4.9 */
606 { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 250 0.0 */
607 { 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 300 1.6 */
608 { 0xA, 0x35, 0x3A, 0x00, 0x05 }, /* 250 350 2.9 */
609 { 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 300 300 0.0 */
610 { 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 300 350 1.3 */
611 { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
612 };
613
614 struct icl_mg_phy_ddi_buf_trans {
615 u32 cri_txdeemph_override_11_6;
616 u32 cri_txdeemph_override_5_0;
617 u32 cri_txdeemph_override_17_12;
618 };
619
620 static const struct icl_mg_phy_ddi_buf_trans icl_mg_phy_ddi_translations_rbr_hbr[] = {
621 /* Voltage swing pre-emphasis */
622 { 0x18, 0x00, 0x00 }, /* 0 0 */
623 { 0x1D, 0x00, 0x05 }, /* 0 1 */
624 { 0x24, 0x00, 0x0C }, /* 0 2 */
625 { 0x2B, 0x00, 0x14 }, /* 0 3 */
626 { 0x21, 0x00, 0x00 }, /* 1 0 */
627 { 0x2B, 0x00, 0x08 }, /* 1 1 */
628 { 0x30, 0x00, 0x0F }, /* 1 2 */
629 { 0x31, 0x00, 0x03 }, /* 2 0 */
630 { 0x34, 0x00, 0x0B }, /* 2 1 */
631 { 0x3F, 0x00, 0x00 }, /* 3 0 */
632 };
633
634 static const struct icl_mg_phy_ddi_buf_trans icl_mg_phy_ddi_translations_hbr2_hbr3[] = {
635 /* Voltage swing pre-emphasis */
636 { 0x18, 0x00, 0x00 }, /* 0 0 */
637 { 0x1D, 0x00, 0x05 }, /* 0 1 */
638 { 0x24, 0x00, 0x0C }, /* 0 2 */
639 { 0x2B, 0x00, 0x14 }, /* 0 3 */
640 { 0x26, 0x00, 0x00 }, /* 1 0 */
641 { 0x2C, 0x00, 0x07 }, /* 1 1 */
642 { 0x33, 0x00, 0x0C }, /* 1 2 */
643 { 0x2E, 0x00, 0x00 }, /* 2 0 */
644 { 0x36, 0x00, 0x09 }, /* 2 1 */
645 { 0x3F, 0x00, 0x00 }, /* 3 0 */
646 };
647
648 static const struct icl_mg_phy_ddi_buf_trans icl_mg_phy_ddi_translations_hdmi[] = {
649 /* HDMI Preset VS Pre-emph */
650 { 0x1A, 0x0, 0x0 }, /* 1 400mV 0dB */
651 { 0x20, 0x0, 0x0 }, /* 2 500mV 0dB */
652 { 0x29, 0x0, 0x0 }, /* 3 650mV 0dB */
653 { 0x32, 0x0, 0x0 }, /* 4 800mV 0dB */
654 { 0x3F, 0x0, 0x0 }, /* 5 1000mV 0dB */
655 { 0x3A, 0x0, 0x5 }, /* 6 Full -1.5 dB */
656 { 0x39, 0x0, 0x6 }, /* 7 Full -1.8 dB */
657 { 0x38, 0x0, 0x7 }, /* 8 Full -2 dB */
658 { 0x37, 0x0, 0x8 }, /* 9 Full -2.5 dB */
659 { 0x36, 0x0, 0x9 }, /* 10 Full -3 dB */
660 };
661
662 struct tgl_dkl_phy_ddi_buf_trans {
663 u32 dkl_vswing_control;
664 u32 dkl_preshoot_control;
665 u32 dkl_de_emphasis_control;
666 };
667
668 static const struct tgl_dkl_phy_ddi_buf_trans tgl_dkl_phy_dp_ddi_trans[] = {
669 /* VS pre-emp Non-trans mV Pre-emph dB */
670 { 0x7, 0x0, 0x00 }, /* 0 0 400mV 0 dB */
671 { 0x5, 0x0, 0x05 }, /* 0 1 400mV 3.5 dB */
672 { 0x2, 0x0, 0x0B }, /* 0 2 400mV 6 dB */
673 { 0x0, 0x0, 0x18 }, /* 0 3 400mV 9.5 dB */
674 { 0x5, 0x0, 0x00 }, /* 1 0 600mV 0 dB */
675 { 0x2, 0x0, 0x08 }, /* 1 1 600mV 3.5 dB */
676 { 0x0, 0x0, 0x14 }, /* 1 2 600mV 6 dB */
677 { 0x2, 0x0, 0x00 }, /* 2 0 800mV 0 dB */
678 { 0x0, 0x0, 0x0B }, /* 2 1 800mV 3.5 dB */
679 { 0x0, 0x0, 0x00 }, /* 3 0 1200mV 0 dB HDMI default */
680 };
681
682 static const struct tgl_dkl_phy_ddi_buf_trans tgl_dkl_phy_dp_ddi_trans_hbr2[] = {
683 /* VS pre-emp Non-trans mV Pre-emph dB */
684 { 0x7, 0x0, 0x00 }, /* 0 0 400mV 0 dB */
685 { 0x5, 0x0, 0x05 }, /* 0 1 400mV 3.5 dB */
686 { 0x2, 0x0, 0x0B }, /* 0 2 400mV 6 dB */
687 { 0x0, 0x0, 0x19 }, /* 0 3 400mV 9.5 dB */
688 { 0x5, 0x0, 0x00 }, /* 1 0 600mV 0 dB */
689 { 0x2, 0x0, 0x08 }, /* 1 1 600mV 3.5 dB */
690 { 0x0, 0x0, 0x14 }, /* 1 2 600mV 6 dB */
691 { 0x2, 0x0, 0x00 }, /* 2 0 800mV 0 dB */
692 { 0x0, 0x0, 0x0B }, /* 2 1 800mV 3.5 dB */
693 { 0x0, 0x0, 0x00 }, /* 3 0 1200mV 0 dB HDMI default */
694 };
695
696 static const struct tgl_dkl_phy_ddi_buf_trans tgl_dkl_phy_hdmi_ddi_trans[] = {
697 /* HDMI Preset VS Pre-emph */
698 { 0x7, 0x0, 0x0 }, /* 1 400mV 0dB */
699 { 0x6, 0x0, 0x0 }, /* 2 500mV 0dB */
700 { 0x4, 0x0, 0x0 }, /* 3 650mV 0dB */
701 { 0x2, 0x0, 0x0 }, /* 4 800mV 0dB */
702 { 0x0, 0x0, 0x0 }, /* 5 1000mV 0dB */
703 { 0x0, 0x0, 0x5 }, /* 6 Full -1.5 dB */
704 { 0x0, 0x0, 0x6 }, /* 7 Full -1.8 dB */
705 { 0x0, 0x0, 0x7 }, /* 8 Full -2 dB */
706 { 0x0, 0x0, 0x8 }, /* 9 Full -2.5 dB */
707 { 0x0, 0x0, 0xA }, /* 10 Full -3 dB */
708 };
709
710 static const struct cnl_ddi_buf_trans tgl_combo_phy_ddi_translations_dp_hbr[] = {
711 /* NT mV Trans mV db */
712 { 0xA, 0x32, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
713 { 0xA, 0x4F, 0x37, 0x00, 0x08 }, /* 350 500 3.1 */
714 { 0xC, 0x71, 0x2F, 0x00, 0x10 }, /* 350 700 6.0 */
715 { 0x6, 0x7D, 0x2B, 0x00, 0x14 }, /* 350 900 8.2 */
716 { 0xA, 0x4C, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
717 { 0xC, 0x73, 0x34, 0x00, 0x0B }, /* 500 700 2.9 */
718 { 0x6, 0x7F, 0x2F, 0x00, 0x10 }, /* 500 900 5.1 */
719 { 0xC, 0x6C, 0x3C, 0x00, 0x03 }, /* 650 700 0.6 */
720 { 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 900 3.5 */
721 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
722 };
723
724 static const struct cnl_ddi_buf_trans tgl_combo_phy_ddi_translations_dp_hbr2[] = {
725 /* NT mV Trans mV db */
726 { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
727 { 0xA, 0x4F, 0x37, 0x00, 0x08 }, /* 350 500 3.1 */
728 { 0xC, 0x63, 0x2F, 0x00, 0x10 }, /* 350 700 6.0 */
729 { 0x6, 0x7F, 0x2B, 0x00, 0x14 }, /* 350 900 8.2 */
730 { 0xA, 0x47, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
731 { 0xC, 0x63, 0x34, 0x00, 0x0B }, /* 500 700 2.9 */
732 { 0x6, 0x7F, 0x2F, 0x00, 0x10 }, /* 500 900 5.1 */
733 { 0xC, 0x61, 0x3C, 0x00, 0x03 }, /* 650 700 0.6 */
734 { 0x6, 0x7B, 0x35, 0x00, 0x0A }, /* 600 900 3.5 */
735 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
736 };
737
738 static const struct cnl_ddi_buf_trans tgl_uy_combo_phy_ddi_translations_dp_hbr2[] = {
739 /* NT mV Trans mV db */
740 { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
741 { 0xA, 0x4F, 0x36, 0x00, 0x09 }, /* 350 500 3.1 */
742 { 0xC, 0x60, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */
743 { 0xC, 0x7F, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */
744 { 0xC, 0x47, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
745 { 0xC, 0x6F, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
746 { 0x6, 0x7D, 0x32, 0x00, 0x0D }, /* 500 900 5.1 */
747 { 0x6, 0x60, 0x3C, 0x00, 0x03 }, /* 650 700 0.6 */
748 { 0x6, 0x7F, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */
749 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
750 };
751
752 /*
753 * Cloned the HOBL entry to comply with the voltage and pre-emphasis entries
754 * that DisplayPort specification requires
755 */
756 static const struct cnl_ddi_buf_trans tgl_combo_phy_ddi_translations_edp_hbr2_hobl[] = {
757 /* VS pre-emp */
758 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 0 */
759 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 1 */
760 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 2 */
761 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 3 */
762 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1 0 */
763 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1 1 */
764 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1 2 */
765 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 2 0 */
766 { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 2 1 */
767 };
768
769 static bool is_hobl_buf_trans(const struct cnl_ddi_buf_trans *table)
770 {
771 return table == tgl_combo_phy_ddi_translations_edp_hbr2_hobl;
772 }
773
774 static const struct ddi_buf_trans *
775 bdw_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries)
776 {
777 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
778
779 if (dev_priv->vbt.edp.low_vswing) {
780 *n_entries = ARRAY_SIZE(bdw_ddi_translations_edp);
781 return bdw_ddi_translations_edp;
782 } else {
783 *n_entries = ARRAY_SIZE(bdw_ddi_translations_dp);
784 return bdw_ddi_translations_dp;
785 }
786 }
787
788 static const struct ddi_buf_trans *
789 skl_get_buf_trans_dp(struct intel_encoder *encoder, int *n_entries)
790 {
791 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
792
793 if (IS_SKL_ULX(dev_priv)) {
794 *n_entries = ARRAY_SIZE(skl_y_ddi_translations_dp);
795 return skl_y_ddi_translations_dp;
796 } else if (IS_SKL_ULT(dev_priv)) {
797 *n_entries = ARRAY_SIZE(skl_u_ddi_translations_dp);
798 return skl_u_ddi_translations_dp;
799 } else {
800 *n_entries = ARRAY_SIZE(skl_ddi_translations_dp);
801 return skl_ddi_translations_dp;
802 }
803 }
804
805 static const struct ddi_buf_trans *
806 kbl_get_buf_trans_dp(struct intel_encoder *encoder, int *n_entries)
807 {
808 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
809
810 if (IS_KBL_ULX(dev_priv) ||
811 IS_CFL_ULX(dev_priv) ||
812 IS_CML_ULX(dev_priv)) {
813 *n_entries = ARRAY_SIZE(kbl_y_ddi_translations_dp);
814 return kbl_y_ddi_translations_dp;
815 } else if (IS_KBL_ULT(dev_priv) ||
816 IS_CFL_ULT(dev_priv) ||
817 IS_CML_ULT(dev_priv)) {
818 *n_entries = ARRAY_SIZE(kbl_u_ddi_translations_dp);
819 return kbl_u_ddi_translations_dp;
820 } else {
821 *n_entries = ARRAY_SIZE(kbl_ddi_translations_dp);
822 return kbl_ddi_translations_dp;
823 }
824 }
825
826 static const struct ddi_buf_trans *
827 skl_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries)
828 {
829 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
830
831 if (dev_priv->vbt.edp.low_vswing) {
832 if (IS_SKL_ULX(dev_priv) ||
833 IS_KBL_ULX(dev_priv) ||
834 IS_CFL_ULX(dev_priv) ||
835 IS_CML_ULX(dev_priv)) {
836 *n_entries = ARRAY_SIZE(skl_y_ddi_translations_edp);
837 return skl_y_ddi_translations_edp;
838 } else if (IS_SKL_ULT(dev_priv) ||
839 IS_KBL_ULT(dev_priv) ||
840 IS_CFL_ULT(dev_priv) ||
841 IS_CML_ULT(dev_priv)) {
842 *n_entries = ARRAY_SIZE(skl_u_ddi_translations_edp);
843 return skl_u_ddi_translations_edp;
844 } else {
845 *n_entries = ARRAY_SIZE(skl_ddi_translations_edp);
846 return skl_ddi_translations_edp;
847 }
848 }
849
850 if (IS_KABYLAKE(dev_priv) ||
851 IS_COFFEELAKE(dev_priv) ||
852 IS_COMETLAKE(dev_priv))
853 return kbl_get_buf_trans_dp(encoder, n_entries);
854 else
855 return skl_get_buf_trans_dp(encoder, n_entries);
856 }
857
858 static const struct ddi_buf_trans *
859 skl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries)
860 {
861 if (IS_SKL_ULX(dev_priv) ||
862 IS_KBL_ULX(dev_priv) ||
863 IS_CFL_ULX(dev_priv) ||
864 IS_CML_ULX(dev_priv)) {
865 *n_entries = ARRAY_SIZE(skl_y_ddi_translations_hdmi);
866 return skl_y_ddi_translations_hdmi;
867 } else {
868 *n_entries = ARRAY_SIZE(skl_ddi_translations_hdmi);
869 return skl_ddi_translations_hdmi;
870 }
871 }
872
873 static int skl_buf_trans_num_entries(enum port port, int n_entries)
874 {
875 /* Only DDIA and DDIE can select the 10th register with DP */
876 if (port == PORT_A || port == PORT_E)
877 return min(n_entries, 10);
878 else
879 return min(n_entries, 9);
880 }
881
882 static const struct ddi_buf_trans *
883 intel_ddi_get_buf_trans_dp(struct intel_encoder *encoder, int *n_entries)
884 {
885 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
886
887 if (IS_KABYLAKE(dev_priv) ||
888 IS_COFFEELAKE(dev_priv) ||
889 IS_COMETLAKE(dev_priv)) {
890 const struct ddi_buf_trans *ddi_translations =
891 kbl_get_buf_trans_dp(encoder, n_entries);
892 *n_entries = skl_buf_trans_num_entries(encoder->port, *n_entries);
893 return ddi_translations;
894 } else if (IS_SKYLAKE(dev_priv)) {
895 const struct ddi_buf_trans *ddi_translations =
896 skl_get_buf_trans_dp(encoder, n_entries);
897 *n_entries = skl_buf_trans_num_entries(encoder->port, *n_entries);
898 return ddi_translations;
899 } else if (IS_BROADWELL(dev_priv)) {
900 *n_entries = ARRAY_SIZE(bdw_ddi_translations_dp);
901 return bdw_ddi_translations_dp;
902 } else if (IS_HASWELL(dev_priv)) {
903 *n_entries = ARRAY_SIZE(hsw_ddi_translations_dp);
904 return hsw_ddi_translations_dp;
905 }
906
907 *n_entries = 0;
908 return NULL;
909 }
910
911 static const struct ddi_buf_trans *
912 intel_ddi_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries)
913 {
914 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
915
916 if (IS_GEN9_BC(dev_priv)) {
917 const struct ddi_buf_trans *ddi_translations =
918 skl_get_buf_trans_edp(encoder, n_entries);
919 *n_entries = skl_buf_trans_num_entries(encoder->port, *n_entries);
920 return ddi_translations;
921 } else if (IS_BROADWELL(dev_priv)) {
922 return bdw_get_buf_trans_edp(encoder, n_entries);
923 } else if (IS_HASWELL(dev_priv)) {
924 *n_entries = ARRAY_SIZE(hsw_ddi_translations_dp);
925 return hsw_ddi_translations_dp;
926 }
927
928 *n_entries = 0;
929 return NULL;
930 }
931
932 static const struct ddi_buf_trans *
933 intel_ddi_get_buf_trans_fdi(struct drm_i915_private *dev_priv,
934 int *n_entries)
935 {
936 if (IS_BROADWELL(dev_priv)) {
937 *n_entries = ARRAY_SIZE(bdw_ddi_translations_fdi);
938 return bdw_ddi_translations_fdi;
939 } else if (IS_HASWELL(dev_priv)) {
940 *n_entries = ARRAY_SIZE(hsw_ddi_translations_fdi);
941 return hsw_ddi_translations_fdi;
942 }
943
944 *n_entries = 0;
945 return NULL;
946 }
947
948 static const struct ddi_buf_trans *
949 intel_ddi_get_buf_trans_hdmi(struct intel_encoder *encoder,
950 int *n_entries)
951 {
952 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
953
954 if (IS_GEN9_BC(dev_priv)) {
955 return skl_get_buf_trans_hdmi(dev_priv, n_entries);
956 } else if (IS_BROADWELL(dev_priv)) {
957 *n_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi);
958 return bdw_ddi_translations_hdmi;
959 } else if (IS_HASWELL(dev_priv)) {
960 *n_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi);
961 return hsw_ddi_translations_hdmi;
962 }
963
964 *n_entries = 0;
965 return NULL;
966 }
967
968 static const struct bxt_ddi_buf_trans *
969 bxt_get_buf_trans_dp(struct intel_encoder *encoder, int *n_entries)
970 {
971 *n_entries = ARRAY_SIZE(bxt_ddi_translations_dp);
972 return bxt_ddi_translations_dp;
973 }
974
975 static const struct bxt_ddi_buf_trans *
976 bxt_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries)
977 {
978 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
979
980 if (dev_priv->vbt.edp.low_vswing) {
981 *n_entries = ARRAY_SIZE(bxt_ddi_translations_edp);
982 return bxt_ddi_translations_edp;
983 }
984
985 return bxt_get_buf_trans_dp(encoder, n_entries);
986 }
987
988 static const struct bxt_ddi_buf_trans *
989 bxt_get_buf_trans_hdmi(struct intel_encoder *encoder, int *n_entries)
990 {
991 *n_entries = ARRAY_SIZE(bxt_ddi_translations_hdmi);
992 return bxt_ddi_translations_hdmi;
993 }
994
995 static const struct cnl_ddi_buf_trans *
996 cnl_get_buf_trans_hdmi(struct intel_encoder *encoder, int *n_entries)
997 {
998 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
999 u32 voltage = intel_de_read(dev_priv, CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
1000
1001 if (voltage == VOLTAGE_INFO_0_85V) {
1002 *n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_85V);
1003 return cnl_ddi_translations_hdmi_0_85V;
1004 } else if (voltage == VOLTAGE_INFO_0_95V) {
1005 *n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_95V);
1006 return cnl_ddi_translations_hdmi_0_95V;
1007 } else if (voltage == VOLTAGE_INFO_1_05V) {
1008 *n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_1_05V);
1009 return cnl_ddi_translations_hdmi_1_05V;
1010 } else {
1011 *n_entries = 1; /* shut up gcc */
1012 MISSING_CASE(voltage);
1013 }
1014 return NULL;
1015 }
1016
1017 static const struct cnl_ddi_buf_trans *
1018 cnl_get_buf_trans_dp(struct intel_encoder *encoder, int *n_entries)
1019 {
1020 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1021 u32 voltage = intel_de_read(dev_priv, CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
1022
1023 if (voltage == VOLTAGE_INFO_0_85V) {
1024 *n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_85V);
1025 return cnl_ddi_translations_dp_0_85V;
1026 } else if (voltage == VOLTAGE_INFO_0_95V) {
1027 *n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_95V);
1028 return cnl_ddi_translations_dp_0_95V;
1029 } else if (voltage == VOLTAGE_INFO_1_05V) {
1030 *n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_1_05V);
1031 return cnl_ddi_translations_dp_1_05V;
1032 } else {
1033 *n_entries = 1; /* shut up gcc */
1034 MISSING_CASE(voltage);
1035 }
1036 return NULL;
1037 }
1038
1039 static const struct cnl_ddi_buf_trans *
1040 cnl_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries)
1041 {
1042 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1043 u32 voltage = intel_de_read(dev_priv, CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
1044
1045 if (dev_priv->vbt.edp.low_vswing) {
1046 if (voltage == VOLTAGE_INFO_0_85V) {
1047 *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_85V);
1048 return cnl_ddi_translations_edp_0_85V;
1049 } else if (voltage == VOLTAGE_INFO_0_95V) {
1050 *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_95V);
1051 return cnl_ddi_translations_edp_0_95V;
1052 } else if (voltage == VOLTAGE_INFO_1_05V) {
1053 *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_1_05V);
1054 return cnl_ddi_translations_edp_1_05V;
1055 } else {
1056 *n_entries = 1; /* shut up gcc */
1057 MISSING_CASE(voltage);
1058 }
1059 return NULL;
1060 } else {
1061 return cnl_get_buf_trans_dp(encoder, n_entries);
1062 }
1063 }
1064
1065 static const struct cnl_ddi_buf_trans *
1066 icl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
1067 const struct intel_crtc_state *crtc_state,
1068 int *n_entries)
1069 {
1070 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
1071 return icl_combo_phy_ddi_translations_hdmi;
1072 }
1073
1074 static const struct cnl_ddi_buf_trans *
1075 icl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
1076 const struct intel_crtc_state *crtc_state,
1077 int *n_entries)
1078 {
1079 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hbr2);
1080 return icl_combo_phy_ddi_translations_dp_hbr2;
1081 }
1082
1083 static const struct cnl_ddi_buf_trans *
1084 icl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
1085 const struct intel_crtc_state *crtc_state,
1086 int *n_entries)
1087 {
1088 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1089
1090 if (crtc_state->port_clock > 540000) {
1091 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
1092 return icl_combo_phy_ddi_translations_edp_hbr3;
1093 } else if (dev_priv->vbt.edp.low_vswing) {
1094 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr2);
1095 return icl_combo_phy_ddi_translations_edp_hbr2;
1096 }
1097
1098 return icl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1099 }
1100
1101 static const struct cnl_ddi_buf_trans *
1102 icl_get_combo_buf_trans(struct intel_encoder *encoder,
1103 const struct intel_crtc_state *crtc_state,
1104 int *n_entries)
1105 {
1106 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
1107 return icl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
1108 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
1109 return icl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
1110 else
1111 return icl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1112 }
1113
1114 static const struct icl_mg_phy_ddi_buf_trans *
1115 icl_get_mg_buf_trans_hdmi(struct intel_encoder *encoder,
1116 const struct intel_crtc_state *crtc_state,
1117 int *n_entries)
1118 {
1119 *n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations_hdmi);
1120 return icl_mg_phy_ddi_translations_hdmi;
1121 }
1122
1123 static const struct icl_mg_phy_ddi_buf_trans *
1124 icl_get_mg_buf_trans_dp(struct intel_encoder *encoder,
1125 const struct intel_crtc_state *crtc_state,
1126 int *n_entries)
1127 {
1128 if (crtc_state->port_clock > 270000) {
1129 *n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations_hbr2_hbr3);
1130 return icl_mg_phy_ddi_translations_hbr2_hbr3;
1131 } else {
1132 *n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations_rbr_hbr);
1133 return icl_mg_phy_ddi_translations_rbr_hbr;
1134 }
1135 }
1136
1137 static const struct icl_mg_phy_ddi_buf_trans *
1138 icl_get_mg_buf_trans(struct intel_encoder *encoder,
1139 const struct intel_crtc_state *crtc_state,
1140 int *n_entries)
1141 {
1142 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
1143 return icl_get_mg_buf_trans_hdmi(encoder, crtc_state, n_entries);
1144 else
1145 return icl_get_mg_buf_trans_dp(encoder, crtc_state, n_entries);
1146 }
1147
1148 static const struct cnl_ddi_buf_trans *
1149 ehl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
1150 const struct intel_crtc_state *crtc_state,
1151 int *n_entries)
1152 {
1153 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
1154 return icl_combo_phy_ddi_translations_hdmi;
1155 }
1156
1157 static const struct cnl_ddi_buf_trans *
1158 ehl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
1159 const struct intel_crtc_state *crtc_state,
1160 int *n_entries)
1161 {
1162 *n_entries = ARRAY_SIZE(ehl_combo_phy_ddi_translations_dp);
1163 return ehl_combo_phy_ddi_translations_dp;
1164 }
1165
1166 static const struct cnl_ddi_buf_trans *
1167 ehl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
1168 const struct intel_crtc_state *crtc_state,
1169 int *n_entries)
1170 {
1171 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1172
1173 if (dev_priv->vbt.edp.low_vswing) {
1174 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr2);
1175 return icl_combo_phy_ddi_translations_edp_hbr2;
1176 }
1177
1178 return ehl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1179 }
1180
1181 static const struct cnl_ddi_buf_trans *
1182 ehl_get_combo_buf_trans(struct intel_encoder *encoder,
1183 const struct intel_crtc_state *crtc_state,
1184 int *n_entries)
1185 {
1186 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
1187 return ehl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
1188 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
1189 return ehl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
1190 else
1191 return ehl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1192 }
1193
1194 static const struct cnl_ddi_buf_trans *
1195 jsl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
1196 const struct intel_crtc_state *crtc_state,
1197 int *n_entries)
1198 {
1199 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
1200 return icl_combo_phy_ddi_translations_hdmi;
1201 }
1202
1203 static const struct cnl_ddi_buf_trans *
1204 jsl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
1205 const struct intel_crtc_state *crtc_state,
1206 int *n_entries)
1207 {
1208 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hbr2);
1209 return icl_combo_phy_ddi_translations_dp_hbr2;
1210 }
1211
1212 static const struct cnl_ddi_buf_trans *
1213 jsl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
1214 const struct intel_crtc_state *crtc_state,
1215 int *n_entries)
1216 {
1217 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1218
1219 if (dev_priv->vbt.edp.low_vswing) {
1220 if (crtc_state->port_clock > 270000) {
1221 *n_entries = ARRAY_SIZE(jsl_combo_phy_ddi_translations_edp_hbr2);
1222 return jsl_combo_phy_ddi_translations_edp_hbr2;
1223 } else {
1224 *n_entries = ARRAY_SIZE(jsl_combo_phy_ddi_translations_edp_hbr);
1225 return jsl_combo_phy_ddi_translations_edp_hbr;
1226 }
1227 }
1228
1229 return jsl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1230 }
1231
1232 static const struct cnl_ddi_buf_trans *
1233 jsl_get_combo_buf_trans(struct intel_encoder *encoder,
1234 const struct intel_crtc_state *crtc_state,
1235 int *n_entries)
1236 {
1237 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
1238 return jsl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
1239 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
1240 return jsl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
1241 else
1242 return jsl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1243 }
1244
1245 static const struct cnl_ddi_buf_trans *
1246 tgl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
1247 const struct intel_crtc_state *crtc_state,
1248 int *n_entries)
1249 {
1250 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
1251 return icl_combo_phy_ddi_translations_hdmi;
1252 }
1253
1254 static const struct cnl_ddi_buf_trans *
1255 tgl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
1256 const struct intel_crtc_state *crtc_state,
1257 int *n_entries)
1258 {
1259 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1260
1261 if (crtc_state->port_clock > 270000) {
1262 if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv)) {
1263 *n_entries = ARRAY_SIZE(tgl_uy_combo_phy_ddi_translations_dp_hbr2);
1264 return tgl_uy_combo_phy_ddi_translations_dp_hbr2;
1265 } else {
1266 *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_dp_hbr2);
1267 return tgl_combo_phy_ddi_translations_dp_hbr2;
1268 }
1269 } else {
1270 *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_dp_hbr);
1271 return tgl_combo_phy_ddi_translations_dp_hbr;
1272 }
1273 }
1274
1275 static const struct cnl_ddi_buf_trans *
1276 tgl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
1277 const struct intel_crtc_state *crtc_state,
1278 int *n_entries)
1279 {
1280 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1281 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
1282
1283 if (crtc_state->port_clock > 540000) {
1284 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
1285 return icl_combo_phy_ddi_translations_edp_hbr3;
1286 } else if (dev_priv->vbt.edp.hobl && !intel_dp->hobl_failed) {
1287 *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_edp_hbr2_hobl);
1288 return tgl_combo_phy_ddi_translations_edp_hbr2_hobl;
1289 } else if (dev_priv->vbt.edp.low_vswing) {
1290 *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr2);
1291 return icl_combo_phy_ddi_translations_edp_hbr2;
1292 }
1293
1294 return tgl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1295 }
1296
1297 static const struct cnl_ddi_buf_trans *
1298 tgl_get_combo_buf_trans(struct intel_encoder *encoder,
1299 const struct intel_crtc_state *crtc_state,
1300 int *n_entries)
1301 {
1302 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
1303 return tgl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
1304 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
1305 return tgl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
1306 else
1307 return tgl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
1308 }
1309
1310 static const struct tgl_dkl_phy_ddi_buf_trans *
1311 tgl_get_dkl_buf_trans_hdmi(struct intel_encoder *encoder,
1312 const struct intel_crtc_state *crtc_state,
1313 int *n_entries)
1314 {
1315 *n_entries = ARRAY_SIZE(tgl_dkl_phy_hdmi_ddi_trans);
1316 return tgl_dkl_phy_hdmi_ddi_trans;
1317 }
1318
1319 static const struct tgl_dkl_phy_ddi_buf_trans *
1320 tgl_get_dkl_buf_trans_dp(struct intel_encoder *encoder,
1321 const struct intel_crtc_state *crtc_state,
1322 int *n_entries)
1323 {
1324 if (crtc_state->port_clock > 270000) {
1325 *n_entries = ARRAY_SIZE(tgl_dkl_phy_dp_ddi_trans_hbr2);
1326 return tgl_dkl_phy_dp_ddi_trans_hbr2;
1327 } else {
1328 *n_entries = ARRAY_SIZE(tgl_dkl_phy_dp_ddi_trans);
1329 return tgl_dkl_phy_dp_ddi_trans;
1330 }
1331 }
1332
1333 static const struct tgl_dkl_phy_ddi_buf_trans *
1334 tgl_get_dkl_buf_trans(struct intel_encoder *encoder,
1335 const struct intel_crtc_state *crtc_state,
1336 int *n_entries)
1337 {
1338 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
1339 return tgl_get_dkl_buf_trans_hdmi(encoder, crtc_state, n_entries);
1340 else
1341 return tgl_get_dkl_buf_trans_dp(encoder, crtc_state, n_entries);
1342 }
1343
1344 static int intel_ddi_hdmi_level(struct intel_encoder *encoder,
1345 const struct intel_crtc_state *crtc_state)
1346 {
1347 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1348 int n_entries, level, default_entry;
1349 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
1350
1351 if (INTEL_GEN(dev_priv) >= 12) {
1352 if (intel_phy_is_combo(dev_priv, phy))
1353 tgl_get_combo_buf_trans_hdmi(encoder, crtc_state, &n_entries);
1354 else
1355 tgl_get_dkl_buf_trans_hdmi(encoder, crtc_state, &n_entries);
1356 default_entry = n_entries - 1;
1357 } else if (INTEL_GEN(dev_priv) == 11) {
1358 if (intel_phy_is_combo(dev_priv, phy))
1359 icl_get_combo_buf_trans_hdmi(encoder, crtc_state, &n_entries);
1360 else
1361 icl_get_mg_buf_trans_hdmi(encoder, crtc_state, &n_entries);
1362 default_entry = n_entries - 1;
1363 } else if (IS_CANNONLAKE(dev_priv)) {
1364 cnl_get_buf_trans_hdmi(encoder, &n_entries);
1365 default_entry = n_entries - 1;
1366 } else if (IS_GEN9_LP(dev_priv)) {
1367 bxt_get_buf_trans_hdmi(encoder, &n_entries);
1368 default_entry = n_entries - 1;
1369 } else if (IS_GEN9_BC(dev_priv)) {
1370 intel_ddi_get_buf_trans_hdmi(encoder, &n_entries);
1371 default_entry = 8;
1372 } else if (IS_BROADWELL(dev_priv)) {
1373 intel_ddi_get_buf_trans_hdmi(encoder, &n_entries);
1374 default_entry = 7;
1375 } else if (IS_HASWELL(dev_priv)) {
1376 intel_ddi_get_buf_trans_hdmi(encoder, &n_entries);
1377 default_entry = 6;
1378 } else {
1379 drm_WARN(&dev_priv->drm, 1, "ddi translation table missing\n");
1380 return 0;
1381 }
1382
1383 if (drm_WARN_ON_ONCE(&dev_priv->drm, n_entries == 0))
1384 return 0;
1385
1386 level = intel_bios_hdmi_level_shift(encoder);
1387 if (level < 0)
1388 level = default_entry;
1389
1390 if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
1391 level = n_entries - 1;
1392
1393 return level;
1394 }
1395
1396 /*
1397 * Starting with Haswell, DDI port buffers must be programmed with correct
1398 * values in advance. This function programs the correct values for
1399 * DP/eDP/FDI use cases.
1400 */
1401 static void intel_prepare_dp_ddi_buffers(struct intel_encoder *encoder,
1402 const struct intel_crtc_state *crtc_state)
1403 {
1404 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1405 u32 iboost_bit = 0;
1406 int i, n_entries;
1407 enum port port = encoder->port;
1408 const struct ddi_buf_trans *ddi_translations;
1409
1410 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG))
1411 ddi_translations = intel_ddi_get_buf_trans_fdi(dev_priv,
1412 &n_entries);
1413 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
1414 ddi_translations = intel_ddi_get_buf_trans_edp(encoder,
1415 &n_entries);
1416 else
1417 ddi_translations = intel_ddi_get_buf_trans_dp(encoder,
1418 &n_entries);
1419
1420 /* If we're boosting the current, set bit 31 of trans1 */
1421 if (IS_GEN9_BC(dev_priv) && intel_bios_dp_boost_level(encoder))
1422 iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE;
1423
1424 for (i = 0; i < n_entries; i++) {
1425 intel_de_write(dev_priv, DDI_BUF_TRANS_LO(port, i),
1426 ddi_translations[i].trans1 | iboost_bit);
1427 intel_de_write(dev_priv, DDI_BUF_TRANS_HI(port, i),
1428 ddi_translations[i].trans2);
1429 }
1430 }
1431
1432 /*
1433 * Starting with Haswell, DDI port buffers must be programmed with correct
1434 * values in advance. This function programs the correct values for
1435 * HDMI/DVI use cases.
1436 */
1437 static void intel_prepare_hdmi_ddi_buffers(struct intel_encoder *encoder,
1438 int level)
1439 {
1440 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1441 u32 iboost_bit = 0;
1442 int n_entries;
1443 enum port port = encoder->port;
1444 const struct ddi_buf_trans *ddi_translations;
1445
1446 ddi_translations = intel_ddi_get_buf_trans_hdmi(encoder, &n_entries);
1447
1448 if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
1449 return;
1450 if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
1451 level = n_entries - 1;
1452
1453 /* If we're boosting the current, set bit 31 of trans1 */
1454 if (IS_GEN9_BC(dev_priv) && intel_bios_hdmi_boost_level(encoder))
1455 iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE;
1456
1457 /* Entry 9 is for HDMI: */
1458 intel_de_write(dev_priv, DDI_BUF_TRANS_LO(port, 9),
1459 ddi_translations[level].trans1 | iboost_bit);
1460 intel_de_write(dev_priv, DDI_BUF_TRANS_HI(port, 9),
1461 ddi_translations[level].trans2);
1462 }
1463
1464 static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv,
1465 enum port port)
1466 {
1467 if (IS_BROXTON(dev_priv)) {
1468 udelay(16);
1469 return;
1470 }
1471
1472 if (wait_for_us((intel_de_read(dev_priv, DDI_BUF_CTL(port)) &
1473 DDI_BUF_IS_IDLE), 8))
1474 drm_err(&dev_priv->drm, "Timeout waiting for DDI BUF %c to get idle\n",
1475 port_name(port));
1476 }
1477
1478 static void intel_wait_ddi_buf_active(struct drm_i915_private *dev_priv,
1479 enum port port)
1480 {
1481 /* Wait > 518 usecs for DDI_BUF_CTL to be non idle */
1482 if (INTEL_GEN(dev_priv) < 10 && !IS_GEMINILAKE(dev_priv)) {
1483 usleep_range(518, 1000);
1484 return;
1485 }
1486
1487 if (wait_for_us(!(intel_de_read(dev_priv, DDI_BUF_CTL(port)) &
1488 DDI_BUF_IS_IDLE), 500))
1489 drm_err(&dev_priv->drm, "Timeout waiting for DDI BUF %c to get active\n",
1490 port_name(port));
1491 }
1492
1493 static u32 hsw_pll_to_ddi_pll_sel(const struct intel_shared_dpll *pll)
1494 {
1495 switch (pll->info->id) {
1496 case DPLL_ID_WRPLL1:
1497 return PORT_CLK_SEL_WRPLL1;
1498 case DPLL_ID_WRPLL2:
1499 return PORT_CLK_SEL_WRPLL2;
1500 case DPLL_ID_SPLL:
1501 return PORT_CLK_SEL_SPLL;
1502 case DPLL_ID_LCPLL_810:
1503 return PORT_CLK_SEL_LCPLL_810;
1504 case DPLL_ID_LCPLL_1350:
1505 return PORT_CLK_SEL_LCPLL_1350;
1506 case DPLL_ID_LCPLL_2700:
1507 return PORT_CLK_SEL_LCPLL_2700;
1508 default:
1509 MISSING_CASE(pll->info->id);
1510 return PORT_CLK_SEL_NONE;
1511 }
1512 }
1513
1514 static u32 icl_pll_to_ddi_clk_sel(struct intel_encoder *encoder,
1515 const struct intel_crtc_state *crtc_state)
1516 {
1517 const struct intel_shared_dpll *pll = crtc_state->shared_dpll;
1518 int clock = crtc_state->port_clock;
1519 const enum intel_dpll_id id = pll->info->id;
1520
1521 switch (id) {
1522 default:
1523 /*
1524 * DPLL_ID_ICL_DPLL0 and DPLL_ID_ICL_DPLL1 should not be used
1525 * here, so do warn if this get passed in
1526 */
1527 MISSING_CASE(id);
1528 return DDI_CLK_SEL_NONE;
1529 case DPLL_ID_ICL_TBTPLL:
1530 switch (clock) {
1531 case 162000:
1532 return DDI_CLK_SEL_TBT_162;
1533 case 270000:
1534 return DDI_CLK_SEL_TBT_270;
1535 case 540000:
1536 return DDI_CLK_SEL_TBT_540;
1537 case 810000:
1538 return DDI_CLK_SEL_TBT_810;
1539 default:
1540 MISSING_CASE(clock);
1541 return DDI_CLK_SEL_NONE;
1542 }
1543 case DPLL_ID_ICL_MGPLL1:
1544 case DPLL_ID_ICL_MGPLL2:
1545 case DPLL_ID_ICL_MGPLL3:
1546 case DPLL_ID_ICL_MGPLL4:
1547 case DPLL_ID_TGL_MGPLL5:
1548 case DPLL_ID_TGL_MGPLL6:
1549 return DDI_CLK_SEL_MG;
1550 }
1551 }
1552
1553 /* Starting with Haswell, different DDI ports can work in FDI mode for
1554 * connection to the PCH-located connectors. For this, it is necessary to train
1555 * both the DDI port and PCH receiver for the desired DDI buffer settings.
1556 *
1557 * The recommended port to work in FDI mode is DDI E, which we use here. Also,
1558 * please note that when FDI mode is active on DDI E, it shares 2 lines with
1559 * DDI A (which is used for eDP)
1560 */
1561
1562 void hsw_fdi_link_train(struct intel_encoder *encoder,
1563 const struct intel_crtc_state *crtc_state)
1564 {
1565 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
1566 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1567 u32 temp, i, rx_ctl_val, ddi_pll_sel;
1568
1569 intel_prepare_dp_ddi_buffers(encoder, crtc_state);
1570
1571 /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the
1572 * mode set "sequence for CRT port" document:
1573 * - TP1 to TP2 time with the default value
1574 * - FDI delay to 90h
1575 *
1576 * WaFDIAutoLinkSetTimingOverrride:hsw
1577 */
1578 intel_de_write(dev_priv, FDI_RX_MISC(PIPE_A),
1579 FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2) | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
1580
1581 /* Enable the PCH Receiver FDI PLL */
1582 rx_ctl_val = dev_priv->fdi_rx_config | FDI_RX_ENHANCE_FRAME_ENABLE |
1583 FDI_RX_PLL_ENABLE |
1584 FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
1585 intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), rx_ctl_val);
1586 intel_de_posting_read(dev_priv, FDI_RX_CTL(PIPE_A));
1587 udelay(220);
1588
1589 /* Switch from Rawclk to PCDclk */
1590 rx_ctl_val |= FDI_PCDCLK;
1591 intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), rx_ctl_val);
1592
1593 /* Configure Port Clock Select */
1594 ddi_pll_sel = hsw_pll_to_ddi_pll_sel(crtc_state->shared_dpll);
1595 intel_de_write(dev_priv, PORT_CLK_SEL(PORT_E), ddi_pll_sel);
1596 drm_WARN_ON(&dev_priv->drm, ddi_pll_sel != PORT_CLK_SEL_SPLL);
1597
1598 /* Start the training iterating through available voltages and emphasis,
1599 * testing each value twice. */
1600 for (i = 0; i < ARRAY_SIZE(hsw_ddi_translations_fdi) * 2; i++) {
1601 /* Configure DP_TP_CTL with auto-training */
1602 intel_de_write(dev_priv, DP_TP_CTL(PORT_E),
1603 DP_TP_CTL_FDI_AUTOTRAIN |
1604 DP_TP_CTL_ENHANCED_FRAME_ENABLE |
1605 DP_TP_CTL_LINK_TRAIN_PAT1 |
1606 DP_TP_CTL_ENABLE);
1607
1608 /* Configure and enable DDI_BUF_CTL for DDI E with next voltage.
1609 * DDI E does not support port reversal, the functionality is
1610 * achieved on the PCH side in FDI_RX_CTL, so no need to set the
1611 * port reversal bit */
1612 intel_de_write(dev_priv, DDI_BUF_CTL(PORT_E),
1613 DDI_BUF_CTL_ENABLE | ((crtc_state->fdi_lanes - 1) << 1) | DDI_BUF_TRANS_SELECT(i / 2));
1614 intel_de_posting_read(dev_priv, DDI_BUF_CTL(PORT_E));
1615
1616 udelay(600);
1617
1618 /* Program PCH FDI Receiver TU */
1619 intel_de_write(dev_priv, FDI_RX_TUSIZE1(PIPE_A), TU_SIZE(64));
1620
1621 /* Enable PCH FDI Receiver with auto-training */
1622 rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO;
1623 intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), rx_ctl_val);
1624 intel_de_posting_read(dev_priv, FDI_RX_CTL(PIPE_A));
1625
1626 /* Wait for FDI receiver lane calibration */
1627 udelay(30);
1628
1629 /* Unset FDI_RX_MISC pwrdn lanes */
1630 temp = intel_de_read(dev_priv, FDI_RX_MISC(PIPE_A));
1631 temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK);
1632 intel_de_write(dev_priv, FDI_RX_MISC(PIPE_A), temp);
1633 intel_de_posting_read(dev_priv, FDI_RX_MISC(PIPE_A));
1634
1635 /* Wait for FDI auto training time */
1636 udelay(5);
1637
1638 temp = intel_de_read(dev_priv, DP_TP_STATUS(PORT_E));
1639 if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) {
1640 drm_dbg_kms(&dev_priv->drm,
1641 "FDI link training done on step %d\n", i);
1642 break;
1643 }
1644
1645 /*
1646 * Leave things enabled even if we failed to train FDI.
1647 * Results in less fireworks from the state checker.
1648 */
1649 if (i == ARRAY_SIZE(hsw_ddi_translations_fdi) * 2 - 1) {
1650 drm_err(&dev_priv->drm, "FDI link training failed!\n");
1651 break;
1652 }
1653
1654 rx_ctl_val &= ~FDI_RX_ENABLE;
1655 intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), rx_ctl_val);
1656 intel_de_posting_read(dev_priv, FDI_RX_CTL(PIPE_A));
1657
1658 temp = intel_de_read(dev_priv, DDI_BUF_CTL(PORT_E));
1659 temp &= ~DDI_BUF_CTL_ENABLE;
1660 intel_de_write(dev_priv, DDI_BUF_CTL(PORT_E), temp);
1661 intel_de_posting_read(dev_priv, DDI_BUF_CTL(PORT_E));
1662
1663 /* Disable DP_TP_CTL and FDI_RX_CTL and retry */
1664 temp = intel_de_read(dev_priv, DP_TP_CTL(PORT_E));
1665 temp &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
1666 temp |= DP_TP_CTL_LINK_TRAIN_PAT1;
1667 intel_de_write(dev_priv, DP_TP_CTL(PORT_E), temp);
1668 intel_de_posting_read(dev_priv, DP_TP_CTL(PORT_E));
1669
1670 intel_wait_ddi_buf_idle(dev_priv, PORT_E);
1671
1672 /* Reset FDI_RX_MISC pwrdn lanes */
1673 temp = intel_de_read(dev_priv, FDI_RX_MISC(PIPE_A));
1674 temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK);
1675 temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2);
1676 intel_de_write(dev_priv, FDI_RX_MISC(PIPE_A), temp);
1677 intel_de_posting_read(dev_priv, FDI_RX_MISC(PIPE_A));
1678 }
1679
1680 /* Enable normal pixel sending for FDI */
1681 intel_de_write(dev_priv, DP_TP_CTL(PORT_E),
1682 DP_TP_CTL_FDI_AUTOTRAIN |
1683 DP_TP_CTL_LINK_TRAIN_NORMAL |
1684 DP_TP_CTL_ENHANCED_FRAME_ENABLE |
1685 DP_TP_CTL_ENABLE);
1686 }
1687
1688 static void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder,
1689 const struct intel_crtc_state *crtc_state)
1690 {
1691 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
1692 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
1693
1694 intel_dp->DP = dig_port->saved_port_bits |
1695 DDI_BUF_CTL_ENABLE | DDI_BUF_TRANS_SELECT(0);
1696 intel_dp->DP |= DDI_PORT_WIDTH(crtc_state->lane_count);
1697 }
1698
1699 static int icl_calc_tbt_pll_link(struct drm_i915_private *dev_priv,
1700 enum port port)
1701 {
1702 u32 val = intel_de_read(dev_priv, DDI_CLK_SEL(port)) & DDI_CLK_SEL_MASK;
1703
1704 switch (val) {
1705 case DDI_CLK_SEL_NONE:
1706 return 0;
1707 case DDI_CLK_SEL_TBT_162:
1708 return 162000;
1709 case DDI_CLK_SEL_TBT_270:
1710 return 270000;
1711 case DDI_CLK_SEL_TBT_540:
1712 return 540000;
1713 case DDI_CLK_SEL_TBT_810:
1714 return 810000;
1715 default:
1716 MISSING_CASE(val);
1717 return 0;
1718 }
1719 }
1720
1721 static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
1722 {
1723 int dotclock;
1724
1725 if (pipe_config->has_pch_encoder)
1726 dotclock = intel_dotclock_calculate(pipe_config->port_clock,
1727 &pipe_config->fdi_m_n);
1728 else if (intel_crtc_has_dp_encoder(pipe_config))
1729 dotclock = intel_dotclock_calculate(pipe_config->port_clock,
1730 &pipe_config->dp_m_n);
1731 else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24)
1732 dotclock = pipe_config->port_clock * 24 / pipe_config->pipe_bpp;
1733 else
1734 dotclock = pipe_config->port_clock;
1735
1736 if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
1737 !intel_crtc_has_dp_encoder(pipe_config))
1738 dotclock *= 2;
1739
1740 if (pipe_config->pixel_multiplier)
1741 dotclock /= pipe_config->pixel_multiplier;
1742
1743 pipe_config->hw.adjusted_mode.crtc_clock = dotclock;
1744 }
1745
1746 static void intel_ddi_clock_get(struct intel_encoder *encoder,
1747 struct intel_crtc_state *pipe_config)
1748 {
1749 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1750 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
1751
1752 if (intel_phy_is_tc(dev_priv, phy) &&
1753 intel_get_shared_dpll_id(dev_priv, pipe_config->shared_dpll) ==
1754 DPLL_ID_ICL_TBTPLL)
1755 pipe_config->port_clock = icl_calc_tbt_pll_link(dev_priv,
1756 encoder->port);
1757 else
1758 pipe_config->port_clock =
1759 intel_dpll_get_freq(dev_priv, pipe_config->shared_dpll,
1760 &pipe_config->dpll_hw_state);
1761
1762 ddi_dotclock_get(pipe_config);
1763 }
1764
1765 void intel_ddi_set_dp_msa(const struct intel_crtc_state *crtc_state,
1766 const struct drm_connector_state *conn_state)
1767 {
1768 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
1769 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1770 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
1771 u32 temp;
1772
1773 if (!intel_crtc_has_dp_encoder(crtc_state))
1774 return;
1775
1776 drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder));
1777
1778 temp = DP_MSA_MISC_SYNC_CLOCK;
1779
1780 switch (crtc_state->pipe_bpp) {
1781 case 18:
1782 temp |= DP_MSA_MISC_6_BPC;
1783 break;
1784 case 24:
1785 temp |= DP_MSA_MISC_8_BPC;
1786 break;
1787 case 30:
1788 temp |= DP_MSA_MISC_10_BPC;
1789 break;
1790 case 36:
1791 temp |= DP_MSA_MISC_12_BPC;
1792 break;
1793 default:
1794 MISSING_CASE(crtc_state->pipe_bpp);
1795 break;
1796 }
1797
1798 /* nonsense combination */
1799 drm_WARN_ON(&dev_priv->drm, crtc_state->limited_color_range &&
1800 crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB);
1801
1802 if (crtc_state->limited_color_range)
1803 temp |= DP_MSA_MISC_COLOR_CEA_RGB;
1804
1805 /*
1806 * As per DP 1.2 spec section 2.3.4.3 while sending
1807 * YCBCR 444 signals we should program MSA MISC1/0 fields with
1808 * colorspace information.
1809 */
1810 if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444)
1811 temp |= DP_MSA_MISC_COLOR_YCBCR_444_BT709;
1812
1813 /*
1814 * As per DP 1.4a spec section 2.2.4.3 [MSA Field for Indication
1815 * of Color Encoding Format and Content Color Gamut] while sending
1816 * YCBCR 420, HDR BT.2020 signals we should program MSA MISC1 fields
1817 * which indicate VSC SDP for the Pixel Encoding/Colorimetry Format.
1818 */
1819 if (intel_dp_needs_vsc_sdp(crtc_state, conn_state))
1820 temp |= DP_MSA_MISC_COLOR_VSC_SDP;
1821
1822 intel_de_write(dev_priv, TRANS_MSA_MISC(cpu_transcoder), temp);
1823 }
1824
1825 static u32 bdw_trans_port_sync_master_select(enum transcoder master_transcoder)
1826 {
1827 if (master_transcoder == TRANSCODER_EDP)
1828 return 0;
1829 else
1830 return master_transcoder + 1;
1831 }
1832
1833 /*
1834 * Returns the TRANS_DDI_FUNC_CTL value based on CRTC state.
1835 *
1836 * Only intended to be used by intel_ddi_enable_transcoder_func() and
1837 * intel_ddi_config_transcoder_func().
1838 */
1839 static u32
1840 intel_ddi_transcoder_func_reg_val_get(struct intel_encoder *encoder,
1841 const struct intel_crtc_state *crtc_state)
1842 {
1843 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
1844 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1845 enum pipe pipe = crtc->pipe;
1846 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
1847 enum port port = encoder->port;
1848 u32 temp;
1849
1850 /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */
1851 temp = TRANS_DDI_FUNC_ENABLE;
1852 if (INTEL_GEN(dev_priv) >= 12)
1853 temp |= TGL_TRANS_DDI_SELECT_PORT(port);
1854 else
1855 temp |= TRANS_DDI_SELECT_PORT(port);
1856
1857 switch (crtc_state->pipe_bpp) {
1858 case 18:
1859 temp |= TRANS_DDI_BPC_6;
1860 break;
1861 case 24:
1862 temp |= TRANS_DDI_BPC_8;
1863 break;
1864 case 30:
1865 temp |= TRANS_DDI_BPC_10;
1866 break;
1867 case 36:
1868 temp |= TRANS_DDI_BPC_12;
1869 break;
1870 default:
1871 BUG();
1872 }
1873
1874 if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_PVSYNC)
1875 temp |= TRANS_DDI_PVSYNC;
1876 if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_PHSYNC)
1877 temp |= TRANS_DDI_PHSYNC;
1878
1879 if (cpu_transcoder == TRANSCODER_EDP) {
1880 switch (pipe) {
1881 case PIPE_A:
1882 /* On Haswell, can only use the always-on power well for
1883 * eDP when not using the panel fitter, and when not
1884 * using motion blur mitigation (which we don't
1885 * support). */
1886 if (crtc_state->pch_pfit.force_thru)
1887 temp |= TRANS_DDI_EDP_INPUT_A_ONOFF;
1888 else
1889 temp |= TRANS_DDI_EDP_INPUT_A_ON;
1890 break;
1891 case PIPE_B:
1892 temp |= TRANS_DDI_EDP_INPUT_B_ONOFF;
1893 break;
1894 case PIPE_C:
1895 temp |= TRANS_DDI_EDP_INPUT_C_ONOFF;
1896 break;
1897 default:
1898 BUG();
1899 break;
1900 }
1901 }
1902
1903 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
1904 if (crtc_state->has_hdmi_sink)
1905 temp |= TRANS_DDI_MODE_SELECT_HDMI;
1906 else
1907 temp |= TRANS_DDI_MODE_SELECT_DVI;
1908
1909 if (crtc_state->hdmi_scrambling)
1910 temp |= TRANS_DDI_HDMI_SCRAMBLING;
1911 if (crtc_state->hdmi_high_tmds_clock_ratio)
1912 temp |= TRANS_DDI_HIGH_TMDS_CHAR_RATE;
1913 } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
1914 temp |= TRANS_DDI_MODE_SELECT_FDI;
1915 temp |= (crtc_state->fdi_lanes - 1) << 1;
1916 } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
1917 temp |= TRANS_DDI_MODE_SELECT_DP_MST;
1918 temp |= DDI_PORT_WIDTH(crtc_state->lane_count);
1919
1920 if (INTEL_GEN(dev_priv) >= 12) {
1921 enum transcoder master;
1922
1923 master = crtc_state->mst_master_transcoder;
1924 drm_WARN_ON(&dev_priv->drm,
1925 master == INVALID_TRANSCODER);
1926 temp |= TRANS_DDI_MST_TRANSPORT_SELECT(master);
1927 }
1928 } else {
1929 temp |= TRANS_DDI_MODE_SELECT_DP_SST;
1930 temp |= DDI_PORT_WIDTH(crtc_state->lane_count);
1931 }
1932
1933 if (IS_GEN_RANGE(dev_priv, 8, 10) &&
1934 crtc_state->master_transcoder != INVALID_TRANSCODER) {
1935 u8 master_select =
1936 bdw_trans_port_sync_master_select(crtc_state->master_transcoder);
1937
1938 temp |= TRANS_DDI_PORT_SYNC_ENABLE |
1939 TRANS_DDI_PORT_SYNC_MASTER_SELECT(master_select);
1940 }
1941
1942 return temp;
1943 }
1944
1945 void intel_ddi_enable_transcoder_func(struct intel_encoder *encoder,
1946 const struct intel_crtc_state *crtc_state)
1947 {
1948 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
1949 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1950 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
1951
1952 if (INTEL_GEN(dev_priv) >= 11) {
1953 enum transcoder master_transcoder = crtc_state->master_transcoder;
1954 u32 ctl2 = 0;
1955
1956 if (master_transcoder != INVALID_TRANSCODER) {
1957 u8 master_select =
1958 bdw_trans_port_sync_master_select(master_transcoder);
1959
1960 ctl2 |= PORT_SYNC_MODE_ENABLE |
1961 PORT_SYNC_MODE_MASTER_SELECT(master_select);
1962 }
1963
1964 intel_de_write(dev_priv,
1965 TRANS_DDI_FUNC_CTL2(cpu_transcoder), ctl2);
1966 }
1967
1968 intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder),
1969 intel_ddi_transcoder_func_reg_val_get(encoder,
1970 crtc_state));
1971 }
1972
1973 /*
1974 * Same as intel_ddi_enable_transcoder_func(), but it does not set the enable
1975 * bit.
1976 */
1977 static void
1978 intel_ddi_config_transcoder_func(struct intel_encoder *encoder,
1979 const struct intel_crtc_state *crtc_state)
1980 {
1981 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
1982 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1983 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
1984 u32 ctl;
1985
1986 ctl = intel_ddi_transcoder_func_reg_val_get(encoder, crtc_state);
1987 ctl &= ~TRANS_DDI_FUNC_ENABLE;
1988 intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder), ctl);
1989 }
1990
1991 void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state)
1992 {
1993 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
1994 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1995 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
1996 u32 ctl;
1997
1998 if (INTEL_GEN(dev_priv) >= 11)
1999 intel_de_write(dev_priv,
2000 TRANS_DDI_FUNC_CTL2(cpu_transcoder), 0);
2001
2002 ctl = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
2003
2004 drm_WARN_ON(crtc->base.dev, ctl & TRANS_DDI_HDCP_SIGNALLING);
2005
2006 ctl &= ~TRANS_DDI_FUNC_ENABLE;
2007
2008 if (IS_GEN_RANGE(dev_priv, 8, 10))
2009 ctl &= ~(TRANS_DDI_PORT_SYNC_ENABLE |
2010 TRANS_DDI_PORT_SYNC_MASTER_SELECT_MASK);
2011
2012 if (INTEL_GEN(dev_priv) >= 12) {
2013 if (!intel_dp_mst_is_master_trans(crtc_state)) {
2014 ctl &= ~(TGL_TRANS_DDI_PORT_MASK |
2015 TRANS_DDI_MODE_SELECT_MASK);
2016 }
2017 } else {
2018 ctl &= ~(TRANS_DDI_PORT_MASK | TRANS_DDI_MODE_SELECT_MASK);
2019 }
2020
2021 intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder), ctl);
2022
2023 if (dev_priv->quirks & QUIRK_INCREASE_DDI_DISABLED_TIME &&
2024 intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
2025 drm_dbg_kms(&dev_priv->drm,
2026 "Quirk Increase DDI disabled time\n");
2027 /* Quirk time at 100ms for reliable operation */
2028 msleep(100);
2029 }
2030 }
2031
2032 int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
2033 enum transcoder cpu_transcoder,
2034 bool enable)
2035 {
2036 struct drm_device *dev = intel_encoder->base.dev;
2037 struct drm_i915_private *dev_priv = to_i915(dev);
2038 intel_wakeref_t wakeref;
2039 int ret = 0;
2040 u32 tmp;
2041
2042 wakeref = intel_display_power_get_if_enabled(dev_priv,
2043 intel_encoder->power_domain);
2044 if (drm_WARN_ON(dev, !wakeref))
2045 return -ENXIO;
2046
2047 tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
2048 if (enable)
2049 tmp |= TRANS_DDI_HDCP_SIGNALLING;
2050 else
2051 tmp &= ~TRANS_DDI_HDCP_SIGNALLING;
2052 intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder), tmp);
2053 intel_display_power_put(dev_priv, intel_encoder->power_domain, wakeref);
2054 return ret;
2055 }
2056
2057 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
2058 {
2059 struct drm_device *dev = intel_connector->base.dev;
2060 struct drm_i915_private *dev_priv = to_i915(dev);
2061 struct intel_encoder *encoder = intel_attached_encoder(intel_connector);
2062 int type = intel_connector->base.connector_type;
2063 enum port port = encoder->port;
2064 enum transcoder cpu_transcoder;
2065 intel_wakeref_t wakeref;
2066 enum pipe pipe = 0;
2067 u32 tmp;
2068 bool ret;
2069
2070 wakeref = intel_display_power_get_if_enabled(dev_priv,
2071 encoder->power_domain);
2072 if (!wakeref)
2073 return false;
2074
2075 if (!encoder->get_hw_state(encoder, &pipe)) {
2076 ret = false;
2077 goto out;
2078 }
2079
2080 if (HAS_TRANSCODER(dev_priv, TRANSCODER_EDP) && port == PORT_A)
2081 cpu_transcoder = TRANSCODER_EDP;
2082 else
2083 cpu_transcoder = (enum transcoder) pipe;
2084
2085 tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
2086
2087 switch (tmp & TRANS_DDI_MODE_SELECT_MASK) {
2088 case TRANS_DDI_MODE_SELECT_HDMI:
2089 case TRANS_DDI_MODE_SELECT_DVI:
2090 ret = type == DRM_MODE_CONNECTOR_HDMIA;
2091 break;
2092
2093 case TRANS_DDI_MODE_SELECT_DP_SST:
2094 ret = type == DRM_MODE_CONNECTOR_eDP ||
2095 type == DRM_MODE_CONNECTOR_DisplayPort;
2096 break;
2097
2098 case TRANS_DDI_MODE_SELECT_DP_MST:
2099 /* if the transcoder is in MST state then
2100 * connector isn't connected */
2101 ret = false;
2102 break;
2103
2104 case TRANS_DDI_MODE_SELECT_FDI:
2105 ret = type == DRM_MODE_CONNECTOR_VGA;
2106 break;
2107
2108 default:
2109 ret = false;
2110 break;
2111 }
2112
2113 out:
2114 intel_display_power_put(dev_priv, encoder->power_domain, wakeref);
2115
2116 return ret;
2117 }
2118
2119 static void intel_ddi_get_encoder_pipes(struct intel_encoder *encoder,
2120 u8 *pipe_mask, bool *is_dp_mst)
2121 {
2122 struct drm_device *dev = encoder->base.dev;
2123 struct drm_i915_private *dev_priv = to_i915(dev);
2124 enum port port = encoder->port;
2125 intel_wakeref_t wakeref;
2126 enum pipe p;
2127 u32 tmp;
2128 u8 mst_pipe_mask;
2129
2130 *pipe_mask = 0;
2131 *is_dp_mst = false;
2132
2133 wakeref = intel_display_power_get_if_enabled(dev_priv,
2134 encoder->power_domain);
2135 if (!wakeref)
2136 return;
2137
2138 tmp = intel_de_read(dev_priv, DDI_BUF_CTL(port));
2139 if (!(tmp & DDI_BUF_CTL_ENABLE))
2140 goto out;
2141
2142 if (HAS_TRANSCODER(dev_priv, TRANSCODER_EDP) && port == PORT_A) {
2143 tmp = intel_de_read(dev_priv,
2144 TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
2145
2146 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
2147 default:
2148 MISSING_CASE(tmp & TRANS_DDI_EDP_INPUT_MASK);
2149 fallthrough;
2150 case TRANS_DDI_EDP_INPUT_A_ON:
2151 case TRANS_DDI_EDP_INPUT_A_ONOFF:
2152 *pipe_mask = BIT(PIPE_A);
2153 break;
2154 case TRANS_DDI_EDP_INPUT_B_ONOFF:
2155 *pipe_mask = BIT(PIPE_B);
2156 break;
2157 case TRANS_DDI_EDP_INPUT_C_ONOFF:
2158 *pipe_mask = BIT(PIPE_C);
2159 break;
2160 }
2161
2162 goto out;
2163 }
2164
2165 mst_pipe_mask = 0;
2166 for_each_pipe(dev_priv, p) {
2167 enum transcoder cpu_transcoder = (enum transcoder)p;
2168 unsigned int port_mask, ddi_select;
2169 intel_wakeref_t trans_wakeref;
2170
2171 trans_wakeref = intel_display_power_get_if_enabled(dev_priv,
2172 POWER_DOMAIN_TRANSCODER(cpu_transcoder));
2173 if (!trans_wakeref)
2174 continue;
2175
2176 if (INTEL_GEN(dev_priv) >= 12) {
2177 port_mask = TGL_TRANS_DDI_PORT_MASK;
2178 ddi_select = TGL_TRANS_DDI_SELECT_PORT(port);
2179 } else {
2180 port_mask = TRANS_DDI_PORT_MASK;
2181 ddi_select = TRANS_DDI_SELECT_PORT(port);
2182 }
2183
2184 tmp = intel_de_read(dev_priv,
2185 TRANS_DDI_FUNC_CTL(cpu_transcoder));
2186 intel_display_power_put(dev_priv, POWER_DOMAIN_TRANSCODER(cpu_transcoder),
2187 trans_wakeref);
2188
2189 if ((tmp & port_mask) != ddi_select)
2190 continue;
2191
2192 if ((tmp & TRANS_DDI_MODE_SELECT_MASK) ==
2193 TRANS_DDI_MODE_SELECT_DP_MST)
2194 mst_pipe_mask |= BIT(p);
2195
2196 *pipe_mask |= BIT(p);
2197 }
2198
2199 if (!*pipe_mask)
2200 drm_dbg_kms(&dev_priv->drm,
2201 "No pipe for [ENCODER:%d:%s] found\n",
2202 encoder->base.base.id, encoder->base.name);
2203
2204 if (!mst_pipe_mask && hweight8(*pipe_mask) > 1) {
2205 drm_dbg_kms(&dev_priv->drm,
2206 "Multiple pipes for [ENCODER:%d:%s] (pipe_mask %02x)\n",
2207 encoder->base.base.id, encoder->base.name,
2208 *pipe_mask);
2209 *pipe_mask = BIT(ffs(*pipe_mask) - 1);
2210 }
2211
2212 if (mst_pipe_mask && mst_pipe_mask != *pipe_mask)
2213 drm_dbg_kms(&dev_priv->drm,
2214 "Conflicting MST and non-MST state for [ENCODER:%d:%s] (pipe_mask %02x mst_pipe_mask %02x)\n",
2215 encoder->base.base.id, encoder->base.name,
2216 *pipe_mask, mst_pipe_mask);
2217 else
2218 *is_dp_mst = mst_pipe_mask;
2219
2220 out:
2221 if (*pipe_mask && IS_GEN9_LP(dev_priv)) {
2222 tmp = intel_de_read(dev_priv, BXT_PHY_CTL(port));
2223 if ((tmp & (BXT_PHY_CMNLANE_POWERDOWN_ACK |
2224 BXT_PHY_LANE_POWERDOWN_ACK |
2225 BXT_PHY_LANE_ENABLED)) != BXT_PHY_LANE_ENABLED)
2226 drm_err(&dev_priv->drm,
2227 "[ENCODER:%d:%s] enabled but PHY powered down? (PHY_CTL %08x)\n",
2228 encoder->base.base.id, encoder->base.name, tmp);
2229 }
2230
2231 intel_display_power_put(dev_priv, encoder->power_domain, wakeref);
2232 }
2233
2234 bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
2235 enum pipe *pipe)
2236 {
2237 u8 pipe_mask;
2238 bool is_mst;
2239
2240 intel_ddi_get_encoder_pipes(encoder, &pipe_mask, &is_mst);
2241
2242 if (is_mst || !pipe_mask)
2243 return false;
2244
2245 *pipe = ffs(pipe_mask) - 1;
2246
2247 return true;
2248 }
2249
2250 static enum intel_display_power_domain
2251 intel_ddi_main_link_aux_domain(struct intel_digital_port *dig_port)
2252 {
2253 /* CNL+ HW requires corresponding AUX IOs to be powered up for PSR with
2254 * DC states enabled at the same time, while for driver initiated AUX
2255 * transfers we need the same AUX IOs to be powered but with DC states
2256 * disabled. Accordingly use the AUX power domain here which leaves DC
2257 * states enabled.
2258 * However, for non-A AUX ports the corresponding non-EDP transcoders
2259 * would have already enabled power well 2 and DC_OFF. This means we can
2260 * acquire a wider POWER_DOMAIN_AUX_{B,C,D,F} reference instead of a
2261 * specific AUX_IO reference without powering up any extra wells.
2262 * Note that PSR is enabled only on Port A even though this function
2263 * returns the correct domain for other ports too.
2264 */
2265 return dig_port->aux_ch == AUX_CH_A ? POWER_DOMAIN_AUX_IO_A :
2266 intel_aux_power_domain(dig_port);
2267 }
2268
2269 static void intel_ddi_get_power_domains(struct intel_encoder *encoder,
2270 struct intel_crtc_state *crtc_state)
2271 {
2272 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2273 struct intel_digital_port *dig_port;
2274 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
2275
2276 /*
2277 * TODO: Add support for MST encoders. Atm, the following should never
2278 * happen since fake-MST encoders don't set their get_power_domains()
2279 * hook.
2280 */
2281 if (drm_WARN_ON(&dev_priv->drm,
2282 intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)))
2283 return;
2284
2285 dig_port = enc_to_dig_port(encoder);
2286
2287 if (!intel_phy_is_tc(dev_priv, phy) ||
2288 dig_port->tc_mode != TC_PORT_TBT_ALT)
2289 intel_display_power_get(dev_priv,
2290 dig_port->ddi_io_power_domain);
2291
2292 /*
2293 * AUX power is only needed for (e)DP mode, and for HDMI mode on TC
2294 * ports.
2295 */
2296 if (intel_crtc_has_dp_encoder(crtc_state) ||
2297 intel_phy_is_tc(dev_priv, phy))
2298 intel_display_power_get(dev_priv,
2299 intel_ddi_main_link_aux_domain(dig_port));
2300 }
2301
2302 void intel_ddi_enable_pipe_clock(struct intel_encoder *encoder,
2303 const struct intel_crtc_state *crtc_state)
2304 {
2305 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
2306 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
2307 enum port port = encoder->port;
2308 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
2309
2310 if (cpu_transcoder != TRANSCODER_EDP) {
2311 if (INTEL_GEN(dev_priv) >= 12)
2312 intel_de_write(dev_priv,
2313 TRANS_CLK_SEL(cpu_transcoder),
2314 TGL_TRANS_CLK_SEL_PORT(port));
2315 else
2316 intel_de_write(dev_priv,
2317 TRANS_CLK_SEL(cpu_transcoder),
2318 TRANS_CLK_SEL_PORT(port));
2319 }
2320 }
2321
2322 void intel_ddi_disable_pipe_clock(const struct intel_crtc_state *crtc_state)
2323 {
2324 struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
2325 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
2326
2327 if (cpu_transcoder != TRANSCODER_EDP) {
2328 if (INTEL_GEN(dev_priv) >= 12)
2329 intel_de_write(dev_priv,
2330 TRANS_CLK_SEL(cpu_transcoder),
2331 TGL_TRANS_CLK_SEL_DISABLED);
2332 else
2333 intel_de_write(dev_priv,
2334 TRANS_CLK_SEL(cpu_transcoder),
2335 TRANS_CLK_SEL_DISABLED);
2336 }
2337 }
2338
2339 static void _skl_ddi_set_iboost(struct drm_i915_private *dev_priv,
2340 enum port port, u8 iboost)
2341 {
2342 u32 tmp;
2343
2344 tmp = intel_de_read(dev_priv, DISPIO_CR_TX_BMU_CR0);
2345 tmp &= ~(BALANCE_LEG_MASK(port) | BALANCE_LEG_DISABLE(port));
2346 if (iboost)
2347 tmp |= iboost << BALANCE_LEG_SHIFT(port);
2348 else
2349 tmp |= BALANCE_LEG_DISABLE(port);
2350 intel_de_write(dev_priv, DISPIO_CR_TX_BMU_CR0, tmp);
2351 }
2352
2353 static void skl_ddi_set_iboost(struct intel_encoder *encoder,
2354 const struct intel_crtc_state *crtc_state,
2355 int level)
2356 {
2357 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
2358 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2359 u8 iboost;
2360
2361 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
2362 iboost = intel_bios_hdmi_boost_level(encoder);
2363 else
2364 iboost = intel_bios_dp_boost_level(encoder);
2365
2366 if (iboost == 0) {
2367 const struct ddi_buf_trans *ddi_translations;
2368 int n_entries;
2369
2370 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
2371 ddi_translations = intel_ddi_get_buf_trans_hdmi(encoder, &n_entries);
2372 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
2373 ddi_translations = intel_ddi_get_buf_trans_edp(encoder, &n_entries);
2374 else
2375 ddi_translations = intel_ddi_get_buf_trans_dp(encoder, &n_entries);
2376
2377 if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
2378 return;
2379 if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
2380 level = n_entries - 1;
2381
2382 iboost = ddi_translations[level].i_boost;
2383 }
2384
2385 /* Make sure that the requested I_boost is valid */
2386 if (iboost && iboost != 0x1 && iboost != 0x3 && iboost != 0x7) {
2387 drm_err(&dev_priv->drm, "Invalid I_boost value %u\n", iboost);
2388 return;
2389 }
2390
2391 _skl_ddi_set_iboost(dev_priv, encoder->port, iboost);
2392
2393 if (encoder->port == PORT_A && dig_port->max_lanes == 4)
2394 _skl_ddi_set_iboost(dev_priv, PORT_E, iboost);
2395 }
2396
2397 static void bxt_ddi_vswing_sequence(struct intel_encoder *encoder,
2398 const struct intel_crtc_state *crtc_state,
2399 int level)
2400 {
2401 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2402 const struct bxt_ddi_buf_trans *ddi_translations;
2403 enum port port = encoder->port;
2404 int n_entries;
2405
2406 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
2407 ddi_translations = bxt_get_buf_trans_hdmi(encoder, &n_entries);
2408 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
2409 ddi_translations = bxt_get_buf_trans_edp(encoder, &n_entries);
2410 else
2411 ddi_translations = bxt_get_buf_trans_dp(encoder, &n_entries);
2412
2413 if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
2414 return;
2415 if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
2416 level = n_entries - 1;
2417
2418 bxt_ddi_phy_set_signal_level(dev_priv, port,
2419 ddi_translations[level].margin,
2420 ddi_translations[level].scale,
2421 ddi_translations[level].enable,
2422 ddi_translations[level].deemphasis);
2423 }
2424
2425 static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp,
2426 const struct intel_crtc_state *crtc_state)
2427 {
2428 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
2429 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2430 enum port port = encoder->port;
2431 enum phy phy = intel_port_to_phy(dev_priv, port);
2432 int n_entries;
2433
2434 if (INTEL_GEN(dev_priv) >= 12) {
2435 if (intel_phy_is_combo(dev_priv, phy))
2436 tgl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2437 else
2438 tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries);
2439 } else if (INTEL_GEN(dev_priv) == 11) {
2440 if (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE))
2441 jsl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2442 else if (IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
2443 ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2444 else if (intel_phy_is_combo(dev_priv, phy))
2445 icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2446 else
2447 icl_get_mg_buf_trans(encoder, crtc_state, &n_entries);
2448 } else if (IS_CANNONLAKE(dev_priv)) {
2449 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
2450 cnl_get_buf_trans_edp(encoder, &n_entries);
2451 else
2452 cnl_get_buf_trans_dp(encoder, &n_entries);
2453 } else if (IS_GEN9_LP(dev_priv)) {
2454 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
2455 bxt_get_buf_trans_edp(encoder, &n_entries);
2456 else
2457 bxt_get_buf_trans_dp(encoder, &n_entries);
2458 } else {
2459 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
2460 intel_ddi_get_buf_trans_edp(encoder, &n_entries);
2461 else
2462 intel_ddi_get_buf_trans_dp(encoder, &n_entries);
2463 }
2464
2465 if (drm_WARN_ON(&dev_priv->drm, n_entries < 1))
2466 n_entries = 1;
2467 if (drm_WARN_ON(&dev_priv->drm,
2468 n_entries > ARRAY_SIZE(index_to_dp_signal_levels)))
2469 n_entries = ARRAY_SIZE(index_to_dp_signal_levels);
2470
2471 return index_to_dp_signal_levels[n_entries - 1] &
2472 DP_TRAIN_VOLTAGE_SWING_MASK;
2473 }
2474
2475 /*
2476 * We assume that the full set of pre-emphasis values can be
2477 * used on all DDI platforms. Should that change we need to
2478 * rethink this code.
2479 */
2480 static u8 intel_ddi_dp_preemph_max(struct intel_dp *intel_dp)
2481 {
2482 return DP_TRAIN_PRE_EMPH_LEVEL_3;
2483 }
2484
2485 static void cnl_ddi_vswing_program(struct intel_encoder *encoder,
2486 const struct intel_crtc_state *crtc_state,
2487 int level)
2488 {
2489 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2490 const struct cnl_ddi_buf_trans *ddi_translations;
2491 enum port port = encoder->port;
2492 int n_entries, ln;
2493 u32 val;
2494
2495 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
2496 ddi_translations = cnl_get_buf_trans_hdmi(encoder, &n_entries);
2497 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
2498 ddi_translations = cnl_get_buf_trans_edp(encoder, &n_entries);
2499 else
2500 ddi_translations = cnl_get_buf_trans_dp(encoder, &n_entries);
2501
2502 if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
2503 return;
2504 if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
2505 level = n_entries - 1;
2506
2507 /* Set PORT_TX_DW5 Scaling Mode Sel to 010b. */
2508 val = intel_de_read(dev_priv, CNL_PORT_TX_DW5_LN0(port));
2509 val &= ~SCALING_MODE_SEL_MASK;
2510 val |= SCALING_MODE_SEL(2);
2511 intel_de_write(dev_priv, CNL_PORT_TX_DW5_GRP(port), val);
2512
2513 /* Program PORT_TX_DW2 */
2514 val = intel_de_read(dev_priv, CNL_PORT_TX_DW2_LN0(port));
2515 val &= ~(SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK |
2516 RCOMP_SCALAR_MASK);
2517 val |= SWING_SEL_UPPER(ddi_translations[level].dw2_swing_sel);
2518 val |= SWING_SEL_LOWER(ddi_translations[level].dw2_swing_sel);
2519 /* Rcomp scalar is fixed as 0x98 for every table entry */
2520 val |= RCOMP_SCALAR(0x98);
2521 intel_de_write(dev_priv, CNL_PORT_TX_DW2_GRP(port), val);
2522
2523 /* Program PORT_TX_DW4 */
2524 /* We cannot write to GRP. It would overrite individual loadgen */
2525 for (ln = 0; ln < 4; ln++) {
2526 val = intel_de_read(dev_priv, CNL_PORT_TX_DW4_LN(ln, port));
2527 val &= ~(POST_CURSOR_1_MASK | POST_CURSOR_2_MASK |
2528 CURSOR_COEFF_MASK);
2529 val |= POST_CURSOR_1(ddi_translations[level].dw4_post_cursor_1);
2530 val |= POST_CURSOR_2(ddi_translations[level].dw4_post_cursor_2);
2531 val |= CURSOR_COEFF(ddi_translations[level].dw4_cursor_coeff);
2532 intel_de_write(dev_priv, CNL_PORT_TX_DW4_LN(ln, port), val);
2533 }
2534
2535 /* Program PORT_TX_DW5 */
2536 /* All DW5 values are fixed for every table entry */
2537 val = intel_de_read(dev_priv, CNL_PORT_TX_DW5_LN0(port));
2538 val &= ~RTERM_SELECT_MASK;
2539 val |= RTERM_SELECT(6);
2540 val |= TAP3_DISABLE;
2541 intel_de_write(dev_priv, CNL_PORT_TX_DW5_GRP(port), val);
2542
2543 /* Program PORT_TX_DW7 */
2544 val = intel_de_read(dev_priv, CNL_PORT_TX_DW7_LN0(port));
2545 val &= ~N_SCALAR_MASK;
2546 val |= N_SCALAR(ddi_translations[level].dw7_n_scalar);
2547 intel_de_write(dev_priv, CNL_PORT_TX_DW7_GRP(port), val);
2548 }
2549
2550 static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder,
2551 const struct intel_crtc_state *crtc_state,
2552 int level)
2553 {
2554 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2555 enum port port = encoder->port;
2556 int width, rate, ln;
2557 u32 val;
2558
2559 width = crtc_state->lane_count;
2560 rate = crtc_state->port_clock;
2561
2562 /*
2563 * 1. If port type is eDP or DP,
2564 * set PORT_PCS_DW1 cmnkeeper_enable to 1b,
2565 * else clear to 0b.
2566 */
2567 val = intel_de_read(dev_priv, CNL_PORT_PCS_DW1_LN0(port));
2568 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
2569 val &= ~COMMON_KEEPER_EN;
2570 else
2571 val |= COMMON_KEEPER_EN;
2572 intel_de_write(dev_priv, CNL_PORT_PCS_DW1_GRP(port), val);
2573
2574 /* 2. Program loadgen select */
2575 /*
2576 * Program PORT_TX_DW4_LN depending on Bit rate and used lanes
2577 * <= 6 GHz and 4 lanes (LN0=0, LN1=1, LN2=1, LN3=1)
2578 * <= 6 GHz and 1,2 lanes (LN0=0, LN1=1, LN2=1, LN3=0)
2579 * > 6 GHz (LN0=0, LN1=0, LN2=0, LN3=0)
2580 */
2581 for (ln = 0; ln <= 3; ln++) {
2582 val = intel_de_read(dev_priv, CNL_PORT_TX_DW4_LN(ln, port));
2583 val &= ~LOADGEN_SELECT;
2584
2585 if ((rate <= 600000 && width == 4 && ln >= 1) ||
2586 (rate <= 600000 && width < 4 && (ln == 1 || ln == 2))) {
2587 val |= LOADGEN_SELECT;
2588 }
2589 intel_de_write(dev_priv, CNL_PORT_TX_DW4_LN(ln, port), val);
2590 }
2591
2592 /* 3. Set PORT_CL_DW5 SUS Clock Config to 11b */
2593 val = intel_de_read(dev_priv, CNL_PORT_CL1CM_DW5);
2594 val |= SUS_CLOCK_CONFIG;
2595 intel_de_write(dev_priv, CNL_PORT_CL1CM_DW5, val);
2596
2597 /* 4. Clear training enable to change swing values */
2598 val = intel_de_read(dev_priv, CNL_PORT_TX_DW5_LN0(port));
2599 val &= ~TX_TRAINING_EN;
2600 intel_de_write(dev_priv, CNL_PORT_TX_DW5_GRP(port), val);
2601
2602 /* 5. Program swing and de-emphasis */
2603 cnl_ddi_vswing_program(encoder, crtc_state, level);
2604
2605 /* 6. Set training enable to trigger update */
2606 val = intel_de_read(dev_priv, CNL_PORT_TX_DW5_LN0(port));
2607 val |= TX_TRAINING_EN;
2608 intel_de_write(dev_priv, CNL_PORT_TX_DW5_GRP(port), val);
2609 }
2610
2611 static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
2612 const struct intel_crtc_state *crtc_state,
2613 int level)
2614 {
2615 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2616 const struct cnl_ddi_buf_trans *ddi_translations;
2617 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
2618 int n_entries, ln;
2619 u32 val;
2620
2621 if (INTEL_GEN(dev_priv) >= 12)
2622 ddi_translations = tgl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2623 else if (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE))
2624 ddi_translations = jsl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2625 else if (IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
2626 ddi_translations = ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2627 else
2628 ddi_translations = icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
2629 if (!ddi_translations)
2630 return;
2631
2632 if (level >= n_entries) {
2633 drm_dbg_kms(&dev_priv->drm,
2634 "DDI translation not found for level %d. Using %d instead.",
2635 level, n_entries - 1);
2636 level = n_entries - 1;
2637 }
2638
2639 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) {
2640 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
2641
2642 val = EDP4K2K_MODE_OVRD_EN | EDP4K2K_MODE_OVRD_OPTIMIZED;
2643 intel_dp->hobl_active = is_hobl_buf_trans(ddi_translations);
2644 intel_de_rmw(dev_priv, ICL_PORT_CL_DW10(phy), val,
2645 intel_dp->hobl_active ? val : 0);
2646 }
2647
2648 /* Set PORT_TX_DW5 */
2649 val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN0(phy));
2650 val &= ~(SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK |
2651 TAP2_DISABLE | TAP3_DISABLE);
2652 val |= SCALING_MODE_SEL(0x2);
2653 val |= RTERM_SELECT(0x6);
2654 val |= TAP3_DISABLE;
2655 intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), val);
2656
2657 /* Program PORT_TX_DW2 */
2658 val = intel_de_read(dev_priv, ICL_PORT_TX_DW2_LN0(phy));
2659 val &= ~(SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK |
2660 RCOMP_SCALAR_MASK);
2661 val |= SWING_SEL_UPPER(ddi_translations[level].dw2_swing_sel);
2662 val |= SWING_SEL_LOWER(ddi_translations[level].dw2_swing_sel);
2663 /* Program Rcomp scalar for every table entry */
2664 val |= RCOMP_SCALAR(0x98);
2665 intel_de_write(dev_priv, ICL_PORT_TX_DW2_GRP(phy), val);
2666
2667 /* Program PORT_TX_DW4 */
2668 /* We cannot write to GRP. It would overwrite individual loadgen. */
2669 for (ln = 0; ln <= 3; ln++) {
2670 val = intel_de_read(dev_priv, ICL_PORT_TX_DW4_LN(ln, phy));
2671 val &= ~(POST_CURSOR_1_MASK | POST_CURSOR_2_MASK |
2672 CURSOR_COEFF_MASK);
2673 val |= POST_CURSOR_1(ddi_translations[level].dw4_post_cursor_1);
2674 val |= POST_CURSOR_2(ddi_translations[level].dw4_post_cursor_2);
2675 val |= CURSOR_COEFF(ddi_translations[level].dw4_cursor_coeff);
2676 intel_de_write(dev_priv, ICL_PORT_TX_DW4_LN(ln, phy), val);
2677 }
2678
2679 /* Program PORT_TX_DW7 */
2680 val = intel_de_read(dev_priv, ICL_PORT_TX_DW7_LN0(phy));
2681 val &= ~N_SCALAR_MASK;
2682 val |= N_SCALAR(ddi_translations[level].dw7_n_scalar);
2683 intel_de_write(dev_priv, ICL_PORT_TX_DW7_GRP(phy), val);
2684 }
2685
2686 static void icl_combo_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
2687 const struct intel_crtc_state *crtc_state,
2688 int level)
2689 {
2690 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2691 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
2692 int width, rate, ln;
2693 u32 val;
2694
2695 width = crtc_state->lane_count;
2696 rate = crtc_state->port_clock;
2697
2698 /*
2699 * 1. If port type is eDP or DP,
2700 * set PORT_PCS_DW1 cmnkeeper_enable to 1b,
2701 * else clear to 0b.
2702 */
2703 val = intel_de_read(dev_priv, ICL_PORT_PCS_DW1_LN0(phy));
2704 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
2705 val &= ~COMMON_KEEPER_EN;
2706 else
2707 val |= COMMON_KEEPER_EN;
2708 intel_de_write(dev_priv, ICL_PORT_PCS_DW1_GRP(phy), val);
2709
2710 /* 2. Program loadgen select */
2711 /*
2712 * Program PORT_TX_DW4_LN depending on Bit rate and used lanes
2713 * <= 6 GHz and 4 lanes (LN0=0, LN1=1, LN2=1, LN3=1)
2714 * <= 6 GHz and 1,2 lanes (LN0=0, LN1=1, LN2=1, LN3=0)
2715 * > 6 GHz (LN0=0, LN1=0, LN2=0, LN3=0)
2716 */
2717 for (ln = 0; ln <= 3; ln++) {
2718 val = intel_de_read(dev_priv, ICL_PORT_TX_DW4_LN(ln, phy));
2719 val &= ~LOADGEN_SELECT;
2720
2721 if ((rate <= 600000 && width == 4 && ln >= 1) ||
2722 (rate <= 600000 && width < 4 && (ln == 1 || ln == 2))) {
2723 val |= LOADGEN_SELECT;
2724 }
2725 intel_de_write(dev_priv, ICL_PORT_TX_DW4_LN(ln, phy), val);
2726 }
2727
2728 /* 3. Set PORT_CL_DW5 SUS Clock Config to 11b */
2729 val = intel_de_read(dev_priv, ICL_PORT_CL_DW5(phy));
2730 val |= SUS_CLOCK_CONFIG;
2731 intel_de_write(dev_priv, ICL_PORT_CL_DW5(phy), val);
2732
2733 /* 4. Clear training enable to change swing values */
2734 val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN0(phy));
2735 val &= ~TX_TRAINING_EN;
2736 intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), val);
2737
2738 /* 5. Program swing and de-emphasis */
2739 icl_ddi_combo_vswing_program(encoder, crtc_state, level);
2740
2741 /* 6. Set training enable to trigger update */
2742 val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN0(phy));
2743 val |= TX_TRAINING_EN;
2744 intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), val);
2745 }
2746
2747 static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
2748 const struct intel_crtc_state *crtc_state,
2749 int level)
2750 {
2751 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2752 enum tc_port tc_port = intel_port_to_tc(dev_priv, encoder->port);
2753 const struct icl_mg_phy_ddi_buf_trans *ddi_translations;
2754 int n_entries, ln;
2755 u32 val;
2756
2757 ddi_translations = icl_get_mg_buf_trans(encoder, crtc_state, &n_entries);
2758 /* The table does not have values for level 3 and level 9. */
2759 if (level >= n_entries || level == 3 || level == 9) {
2760 drm_dbg_kms(&dev_priv->drm,
2761 "DDI translation not found for level %d. Using %d instead.",
2762 level, n_entries - 2);
2763 level = n_entries - 2;
2764 }
2765
2766 /* Set MG_TX_LINK_PARAMS cri_use_fs32 to 0. */
2767 for (ln = 0; ln < 2; ln++) {
2768 val = intel_de_read(dev_priv, MG_TX1_LINK_PARAMS(ln, tc_port));
2769 val &= ~CRI_USE_FS32;
2770 intel_de_write(dev_priv, MG_TX1_LINK_PARAMS(ln, tc_port), val);
2771
2772 val = intel_de_read(dev_priv, MG_TX2_LINK_PARAMS(ln, tc_port));
2773 val &= ~CRI_USE_FS32;
2774 intel_de_write(dev_priv, MG_TX2_LINK_PARAMS(ln, tc_port), val);
2775 }
2776
2777 /* Program MG_TX_SWINGCTRL with values from vswing table */
2778 for (ln = 0; ln < 2; ln++) {
2779 val = intel_de_read(dev_priv, MG_TX1_SWINGCTRL(ln, tc_port));
2780 val &= ~CRI_TXDEEMPH_OVERRIDE_17_12_MASK;
2781 val |= CRI_TXDEEMPH_OVERRIDE_17_12(
2782 ddi_translations[level].cri_txdeemph_override_17_12);
2783 intel_de_write(dev_priv, MG_TX1_SWINGCTRL(ln, tc_port), val);
2784
2785 val = intel_de_read(dev_priv, MG_TX2_SWINGCTRL(ln, tc_port));
2786 val &= ~CRI_TXDEEMPH_OVERRIDE_17_12_MASK;
2787 val |= CRI_TXDEEMPH_OVERRIDE_17_12(
2788 ddi_translations[level].cri_txdeemph_override_17_12);
2789 intel_de_write(dev_priv, MG_TX2_SWINGCTRL(ln, tc_port), val);
2790 }
2791
2792 /* Program MG_TX_DRVCTRL with values from vswing table */
2793 for (ln = 0; ln < 2; ln++) {
2794 val = intel_de_read(dev_priv, MG_TX1_DRVCTRL(ln, tc_port));
2795 val &= ~(CRI_TXDEEMPH_OVERRIDE_11_6_MASK |
2796 CRI_TXDEEMPH_OVERRIDE_5_0_MASK);
2797 val |= CRI_TXDEEMPH_OVERRIDE_5_0(
2798 ddi_translations[level].cri_txdeemph_override_5_0) |
2799 CRI_TXDEEMPH_OVERRIDE_11_6(
2800 ddi_translations[level].cri_txdeemph_override_11_6) |
2801 CRI_TXDEEMPH_OVERRIDE_EN;
2802 intel_de_write(dev_priv, MG_TX1_DRVCTRL(ln, tc_port), val);
2803
2804 val = intel_de_read(dev_priv, MG_TX2_DRVCTRL(ln, tc_port));
2805 val &= ~(CRI_TXDEEMPH_OVERRIDE_11_6_MASK |
2806 CRI_TXDEEMPH_OVERRIDE_5_0_MASK);
2807 val |= CRI_TXDEEMPH_OVERRIDE_5_0(
2808 ddi_translations[level].cri_txdeemph_override_5_0) |
2809 CRI_TXDEEMPH_OVERRIDE_11_6(
2810 ddi_translations[level].cri_txdeemph_override_11_6) |
2811 CRI_TXDEEMPH_OVERRIDE_EN;
2812 intel_de_write(dev_priv, MG_TX2_DRVCTRL(ln, tc_port), val);
2813
2814 /* FIXME: Program CRI_LOADGEN_SEL after the spec is updated */
2815 }
2816
2817 /*
2818 * Program MG_CLKHUB<LN, port being used> with value from frequency table
2819 * In case of Legacy mode on MG PHY, both TX1 and TX2 enabled so use the
2820 * values from table for which TX1 and TX2 enabled.
2821 */
2822 for (ln = 0; ln < 2; ln++) {
2823 val = intel_de_read(dev_priv, MG_CLKHUB(ln, tc_port));
2824 if (crtc_state->port_clock < 300000)
2825 val |= CFG_LOW_RATE_LKREN_EN;
2826 else
2827 val &= ~CFG_LOW_RATE_LKREN_EN;
2828 intel_de_write(dev_priv, MG_CLKHUB(ln, tc_port), val);
2829 }
2830
2831 /* Program the MG_TX_DCC<LN, port being used> based on the link frequency */
2832 for (ln = 0; ln < 2; ln++) {
2833 val = intel_de_read(dev_priv, MG_TX1_DCC(ln, tc_port));
2834 val &= ~CFG_AMI_CK_DIV_OVERRIDE_VAL_MASK;
2835 if (crtc_state->port_clock <= 500000) {
2836 val &= ~CFG_AMI_CK_DIV_OVERRIDE_EN;
2837 } else {
2838 val |= CFG_AMI_CK_DIV_OVERRIDE_EN |
2839 CFG_AMI_CK_DIV_OVERRIDE_VAL(1);
2840 }
2841 intel_de_write(dev_priv, MG_TX1_DCC(ln, tc_port), val);
2842
2843 val = intel_de_read(dev_priv, MG_TX2_DCC(ln, tc_port));
2844 val &= ~CFG_AMI_CK_DIV_OVERRIDE_VAL_MASK;
2845 if (crtc_state->port_clock <= 500000) {
2846 val &= ~CFG_AMI_CK_DIV_OVERRIDE_EN;
2847 } else {
2848 val |= CFG_AMI_CK_DIV_OVERRIDE_EN |
2849 CFG_AMI_CK_DIV_OVERRIDE_VAL(1);
2850 }
2851 intel_de_write(dev_priv, MG_TX2_DCC(ln, tc_port), val);
2852 }
2853
2854 /* Program MG_TX_PISO_READLOAD with values from vswing table */
2855 for (ln = 0; ln < 2; ln++) {
2856 val = intel_de_read(dev_priv,
2857 MG_TX1_PISO_READLOAD(ln, tc_port));
2858 val |= CRI_CALCINIT;
2859 intel_de_write(dev_priv, MG_TX1_PISO_READLOAD(ln, tc_port),
2860 val);
2861
2862 val = intel_de_read(dev_priv,
2863 MG_TX2_PISO_READLOAD(ln, tc_port));
2864 val |= CRI_CALCINIT;
2865 intel_de_write(dev_priv, MG_TX2_PISO_READLOAD(ln, tc_port),
2866 val);
2867 }
2868 }
2869
2870 static void icl_ddi_vswing_sequence(struct intel_encoder *encoder,
2871 const struct intel_crtc_state *crtc_state,
2872 int level)
2873 {
2874 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2875 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
2876
2877 if (intel_phy_is_combo(dev_priv, phy))
2878 icl_combo_phy_ddi_vswing_sequence(encoder, crtc_state, level);
2879 else
2880 icl_mg_phy_ddi_vswing_sequence(encoder, crtc_state, level);
2881 }
2882
2883 static void
2884 tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
2885 const struct intel_crtc_state *crtc_state,
2886 int level)
2887 {
2888 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2889 enum tc_port tc_port = intel_port_to_tc(dev_priv, encoder->port);
2890 const struct tgl_dkl_phy_ddi_buf_trans *ddi_translations;
2891 u32 val, dpcnt_mask, dpcnt_val;
2892 int n_entries, ln;
2893
2894 ddi_translations = tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries);
2895
2896 if (level >= n_entries)
2897 level = n_entries - 1;
2898
2899 dpcnt_mask = (DKL_TX_PRESHOOT_COEFF_MASK |
2900 DKL_TX_DE_EMPAHSIS_COEFF_MASK |
2901 DKL_TX_VSWING_CONTROL_MASK);
2902 dpcnt_val = DKL_TX_VSWING_CONTROL(ddi_translations[level].dkl_vswing_control);
2903 dpcnt_val |= DKL_TX_DE_EMPHASIS_COEFF(ddi_translations[level].dkl_de_emphasis_control);
2904 dpcnt_val |= DKL_TX_PRESHOOT_COEFF(ddi_translations[level].dkl_preshoot_control);
2905
2906 for (ln = 0; ln < 2; ln++) {
2907 intel_de_write(dev_priv, HIP_INDEX_REG(tc_port),
2908 HIP_INDEX_VAL(tc_port, ln));
2909
2910 intel_de_write(dev_priv, DKL_TX_PMD_LANE_SUS(tc_port), 0);
2911
2912 /* All the registers are RMW */
2913 val = intel_de_read(dev_priv, DKL_TX_DPCNTL0(tc_port));
2914 val &= ~dpcnt_mask;
2915 val |= dpcnt_val;
2916 intel_de_write(dev_priv, DKL_TX_DPCNTL0(tc_port), val);
2917
2918 val = intel_de_read(dev_priv, DKL_TX_DPCNTL1(tc_port));
2919 val &= ~dpcnt_mask;
2920 val |= dpcnt_val;
2921 intel_de_write(dev_priv, DKL_TX_DPCNTL1(tc_port), val);
2922
2923 val = intel_de_read(dev_priv, DKL_TX_DPCNTL2(tc_port));
2924 val &= ~DKL_TX_DP20BITMODE;
2925 intel_de_write(dev_priv, DKL_TX_DPCNTL2(tc_port), val);
2926 }
2927 }
2928
2929 static void tgl_ddi_vswing_sequence(struct intel_encoder *encoder,
2930 const struct intel_crtc_state *crtc_state,
2931 int level)
2932 {
2933 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2934 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
2935
2936 if (intel_phy_is_combo(dev_priv, phy))
2937 icl_combo_phy_ddi_vswing_sequence(encoder, crtc_state, level);
2938 else
2939 tgl_dkl_phy_ddi_vswing_sequence(encoder, crtc_state, level);
2940 }
2941
2942 static int translate_signal_level(struct intel_dp *intel_dp,
2943 u8 signal_levels)
2944 {
2945 struct drm_i915_private *i915 = dp_to_i915(intel_dp);
2946 int i;
2947
2948 for (i = 0; i < ARRAY_SIZE(index_to_dp_signal_levels); i++) {
2949 if (index_to_dp_signal_levels[i] == signal_levels)
2950 return i;
2951 }
2952
2953 drm_WARN(&i915->drm, 1,
2954 "Unsupported voltage swing/pre-emphasis level: 0x%x\n",
2955 signal_levels);
2956
2957 return 0;
2958 }
2959
2960 static int intel_ddi_dp_level(struct intel_dp *intel_dp)
2961 {
2962 u8 train_set = intel_dp->train_set[0];
2963 u8 signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK |
2964 DP_TRAIN_PRE_EMPHASIS_MASK);
2965
2966 return translate_signal_level(intel_dp, signal_levels);
2967 }
2968
2969 static void
2970 tgl_set_signal_levels(struct intel_dp *intel_dp,
2971 const struct intel_crtc_state *crtc_state)
2972 {
2973 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
2974 int level = intel_ddi_dp_level(intel_dp);
2975
2976 tgl_ddi_vswing_sequence(encoder, crtc_state, level);
2977 }
2978
2979 static void
2980 icl_set_signal_levels(struct intel_dp *intel_dp,
2981 const struct intel_crtc_state *crtc_state)
2982 {
2983 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
2984 int level = intel_ddi_dp_level(intel_dp);
2985
2986 icl_ddi_vswing_sequence(encoder, crtc_state, level);
2987 }
2988
2989 static void
2990 cnl_set_signal_levels(struct intel_dp *intel_dp,
2991 const struct intel_crtc_state *crtc_state)
2992 {
2993 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
2994 int level = intel_ddi_dp_level(intel_dp);
2995
2996 cnl_ddi_vswing_sequence(encoder, crtc_state, level);
2997 }
2998
2999 static void
3000 bxt_set_signal_levels(struct intel_dp *intel_dp,
3001 const struct intel_crtc_state *crtc_state)
3002 {
3003 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
3004 int level = intel_ddi_dp_level(intel_dp);
3005
3006 bxt_ddi_vswing_sequence(encoder, crtc_state, level);
3007 }
3008
3009 static void
3010 hsw_set_signal_levels(struct intel_dp *intel_dp,
3011 const struct intel_crtc_state *crtc_state)
3012 {
3013 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
3014 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3015 int level = intel_ddi_dp_level(intel_dp);
3016 enum port port = encoder->port;
3017 u32 signal_levels;
3018
3019 signal_levels = DDI_BUF_TRANS_SELECT(level);
3020
3021 drm_dbg_kms(&dev_priv->drm, "Using signal levels %08x\n",
3022 signal_levels);
3023
3024 intel_dp->DP &= ~DDI_BUF_EMP_MASK;
3025 intel_dp->DP |= signal_levels;
3026
3027 if (IS_GEN9_BC(dev_priv))
3028 skl_ddi_set_iboost(encoder, crtc_state, level);
3029
3030 intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP);
3031 intel_de_posting_read(dev_priv, DDI_BUF_CTL(port));
3032 }
3033
3034 static u32 icl_dpclka_cfgcr0_clk_off(struct drm_i915_private *dev_priv,
3035 enum phy phy)
3036 {
3037 if (IS_ROCKETLAKE(dev_priv)) {
3038 return RKL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy);
3039 } else if (intel_phy_is_combo(dev_priv, phy)) {
3040 return ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy);
3041 } else if (intel_phy_is_tc(dev_priv, phy)) {
3042 enum tc_port tc_port = intel_port_to_tc(dev_priv,
3043 (enum port)phy);
3044
3045 return ICL_DPCLKA_CFGCR0_TC_CLK_OFF(tc_port);
3046 }
3047
3048 return 0;
3049 }
3050
3051 static void dg1_map_plls_to_ports(struct intel_encoder *encoder,
3052 const struct intel_crtc_state *crtc_state)
3053 {
3054 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3055 struct intel_shared_dpll *pll = crtc_state->shared_dpll;
3056 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
3057 u32 val;
3058
3059 /*
3060 * If we fail this, something went very wrong: first 2 PLLs should be
3061 * used by first 2 phys and last 2 PLLs by last phys
3062 */
3063 if (drm_WARN_ON(&dev_priv->drm,
3064 (pll->info->id < DPLL_ID_DG1_DPLL2 && phy >= PHY_C) ||
3065 (pll->info->id >= DPLL_ID_DG1_DPLL2 && phy < PHY_C)))
3066 return;
3067
3068 mutex_lock(&dev_priv->dpll.lock);
3069
3070 val = intel_de_read(dev_priv, DG1_DPCLKA_CFGCR0(phy));
3071 drm_WARN_ON(&dev_priv->drm,
3072 (val & DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)) == 0);
3073
3074 val &= ~DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
3075 val |= DG1_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy);
3076 intel_de_write(dev_priv, DG1_DPCLKA_CFGCR0(phy), val);
3077 intel_de_posting_read(dev_priv, DG1_DPCLKA_CFGCR0(phy));
3078
3079 val &= ~DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy);
3080 intel_de_write(dev_priv, DG1_DPCLKA_CFGCR0(phy), val);
3081
3082 mutex_unlock(&dev_priv->dpll.lock);
3083 }
3084
3085 static void icl_map_plls_to_ports(struct intel_encoder *encoder,
3086 const struct intel_crtc_state *crtc_state)
3087 {
3088 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3089 struct intel_shared_dpll *pll = crtc_state->shared_dpll;
3090 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
3091 u32 val;
3092
3093 mutex_lock(&dev_priv->dpll.lock);
3094
3095 val = intel_de_read(dev_priv, ICL_DPCLKA_CFGCR0);
3096 drm_WARN_ON(&dev_priv->drm,
3097 (val & icl_dpclka_cfgcr0_clk_off(dev_priv, phy)) == 0);
3098
3099 if (intel_phy_is_combo(dev_priv, phy)) {
3100 u32 mask, sel;
3101
3102 if (IS_ROCKETLAKE(dev_priv)) {
3103 mask = RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
3104 sel = RKL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy);
3105 } else {
3106 mask = ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
3107 sel = ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy);
3108 }
3109
3110 /*
3111 * Even though this register references DDIs, note that we
3112 * want to pass the PHY rather than the port (DDI). For
3113 * ICL, port=phy in all cases so it doesn't matter, but for
3114 * EHL the bspec notes the following:
3115 *
3116 * "DDID clock tied to DDIA clock, so DPCLKA_CFGCR0 DDIA
3117 * Clock Select chooses the PLL for both DDIA and DDID and
3118 * drives port A in all cases."
3119 */
3120 val &= ~mask;
3121 val |= sel;
3122 intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, val);
3123 intel_de_posting_read(dev_priv, ICL_DPCLKA_CFGCR0);
3124 }
3125
3126 val &= ~icl_dpclka_cfgcr0_clk_off(dev_priv, phy);
3127 intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, val);
3128
3129 mutex_unlock(&dev_priv->dpll.lock);
3130 }
3131
3132 static void dg1_unmap_plls_to_ports(struct intel_encoder *encoder)
3133 {
3134 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3135 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
3136
3137 mutex_lock(&dev_priv->dpll.lock);
3138
3139 intel_de_rmw(dev_priv, DG1_DPCLKA_CFGCR0(phy), 0,
3140 DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy));
3141
3142 mutex_unlock(&dev_priv->dpll.lock);
3143 }
3144
3145 static void icl_unmap_plls_to_ports(struct intel_encoder *encoder)
3146 {
3147 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3148 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
3149 u32 val;
3150
3151 mutex_lock(&dev_priv->dpll.lock);
3152
3153 val = intel_de_read(dev_priv, ICL_DPCLKA_CFGCR0);
3154 val |= icl_dpclka_cfgcr0_clk_off(dev_priv, phy);
3155 intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, val);
3156
3157 mutex_unlock(&dev_priv->dpll.lock);
3158 }
3159
3160 static void dg1_sanitize_port_clk_off(struct drm_i915_private *dev_priv,
3161 u32 port_mask, bool ddi_clk_needed)
3162 {
3163 enum port port;
3164 u32 val;
3165
3166 for_each_port_masked(port, port_mask) {
3167 enum phy phy = intel_port_to_phy(dev_priv, port);
3168 bool ddi_clk_off;
3169
3170 val = intel_de_read(dev_priv, DG1_DPCLKA_CFGCR0(phy));
3171 ddi_clk_off = val & DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy);
3172
3173 if (ddi_clk_needed == !ddi_clk_off)
3174 continue;
3175
3176 /*
3177 * Punt on the case now where clock is gated, but it would
3178 * be needed by the port. Something else is really broken then.
3179 */
3180 if (drm_WARN_ON(&dev_priv->drm, ddi_clk_needed))
3181 continue;
3182
3183 drm_notice(&dev_priv->drm,
3184 "PHY %c is disabled with an ungated DDI clock, gate it\n",
3185 phy_name(phy));
3186 val |= DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy);
3187 intel_de_write(dev_priv, DG1_DPCLKA_CFGCR0(phy), val);
3188 }
3189 }
3190
3191 static void icl_sanitize_port_clk_off(struct drm_i915_private *dev_priv,
3192 u32 port_mask, bool ddi_clk_needed)
3193 {
3194 enum port port;
3195 u32 val;
3196
3197 val = intel_de_read(dev_priv, ICL_DPCLKA_CFGCR0);
3198 for_each_port_masked(port, port_mask) {
3199 enum phy phy = intel_port_to_phy(dev_priv, port);
3200 bool ddi_clk_off = val & icl_dpclka_cfgcr0_clk_off(dev_priv,
3201 phy);
3202
3203 if (ddi_clk_needed == !ddi_clk_off)
3204 continue;
3205
3206 /*
3207 * Punt on the case now where clock is gated, but it would
3208 * be needed by the port. Something else is really broken then.
3209 */
3210 if (drm_WARN_ON(&dev_priv->drm, ddi_clk_needed))
3211 continue;
3212
3213 drm_notice(&dev_priv->drm,
3214 "PHY %c is disabled/in DSI mode with an ungated DDI clock, gate it\n",
3215 phy_name(phy));
3216 val |= icl_dpclka_cfgcr0_clk_off(dev_priv, phy);
3217 intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, val);
3218 }
3219 }
3220
3221 void icl_sanitize_encoder_pll_mapping(struct intel_encoder *encoder)
3222 {
3223 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3224 u32 port_mask;
3225 bool ddi_clk_needed;
3226
3227 /*
3228 * In case of DP MST, we sanitize the primary encoder only, not the
3229 * virtual ones.
3230 */
3231 if (encoder->type == INTEL_OUTPUT_DP_MST)
3232 return;
3233
3234 if (!encoder->base.crtc && intel_encoder_is_dp(encoder)) {
3235 u8 pipe_mask;
3236 bool is_mst;
3237
3238 intel_ddi_get_encoder_pipes(encoder, &pipe_mask, &is_mst);
3239 /*
3240 * In the unlikely case that BIOS enables DP in MST mode, just
3241 * warn since our MST HW readout is incomplete.
3242 */
3243 if (drm_WARN_ON(&dev_priv->drm, is_mst))
3244 return;
3245 }
3246
3247 port_mask = BIT(encoder->port);
3248 ddi_clk_needed = encoder->base.crtc;
3249
3250 if (encoder->type == INTEL_OUTPUT_DSI) {
3251 struct intel_encoder *other_encoder;
3252
3253 port_mask = intel_dsi_encoder_ports(encoder);
3254 /*
3255 * Sanity check that we haven't incorrectly registered another
3256 * encoder using any of the ports of this DSI encoder.
3257 */
3258 for_each_intel_encoder(&dev_priv->drm, other_encoder) {
3259 if (other_encoder == encoder)
3260 continue;
3261
3262 if (drm_WARN_ON(&dev_priv->drm,
3263 port_mask & BIT(other_encoder->port)))
3264 return;
3265 }
3266 /*
3267 * For DSI we keep the ddi clocks gated
3268 * except during enable/disable sequence.
3269 */
3270 ddi_clk_needed = false;
3271 }
3272
3273 if (IS_DG1(dev_priv))
3274 dg1_sanitize_port_clk_off(dev_priv, port_mask, ddi_clk_needed);
3275 else
3276 icl_sanitize_port_clk_off(dev_priv, port_mask, ddi_clk_needed);
3277 }
3278
3279 static void intel_ddi_clk_select(struct intel_encoder *encoder,
3280 const struct intel_crtc_state *crtc_state)
3281 {
3282 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3283 enum port port = encoder->port;
3284 enum phy phy = intel_port_to_phy(dev_priv, port);
3285 u32 val;
3286 const struct intel_shared_dpll *pll = crtc_state->shared_dpll;
3287
3288 if (drm_WARN_ON(&dev_priv->drm, !pll))
3289 return;
3290
3291 mutex_lock(&dev_priv->dpll.lock);
3292
3293 if (INTEL_GEN(dev_priv) >= 11) {
3294 if (!intel_phy_is_combo(dev_priv, phy))
3295 intel_de_write(dev_priv, DDI_CLK_SEL(port),
3296 icl_pll_to_ddi_clk_sel(encoder, crtc_state));
3297 else if (IS_JSL_EHL(dev_priv) && port >= PORT_C)
3298 /*
3299 * MG does not exist but the programming is required
3300 * to ungate DDIC and DDID
3301 */
3302 intel_de_write(dev_priv, DDI_CLK_SEL(port),
3303 DDI_CLK_SEL_MG);
3304 } else if (IS_CANNONLAKE(dev_priv)) {
3305 /* Configure DPCLKA_CFGCR0 to map the DPLL to the DDI. */
3306 val = intel_de_read(dev_priv, DPCLKA_CFGCR0);
3307 val &= ~DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port);
3308 val |= DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, port);
3309 intel_de_write(dev_priv, DPCLKA_CFGCR0, val);
3310
3311 /*
3312 * Configure DPCLKA_CFGCR0 to turn on the clock for the DDI.
3313 * This step and the step before must be done with separate
3314 * register writes.
3315 */
3316 val = intel_de_read(dev_priv, DPCLKA_CFGCR0);
3317 val &= ~DPCLKA_CFGCR0_DDI_CLK_OFF(port);
3318 intel_de_write(dev_priv, DPCLKA_CFGCR0, val);
3319 } else if (IS_GEN9_BC(dev_priv)) {
3320 /* DDI -> PLL mapping */
3321 val = intel_de_read(dev_priv, DPLL_CTRL2);
3322
3323 val &= ~(DPLL_CTRL2_DDI_CLK_OFF(port) |
3324 DPLL_CTRL2_DDI_CLK_SEL_MASK(port));
3325 val |= (DPLL_CTRL2_DDI_CLK_SEL(pll->info->id, port) |
3326 DPLL_CTRL2_DDI_SEL_OVERRIDE(port));
3327
3328 intel_de_write(dev_priv, DPLL_CTRL2, val);
3329
3330 } else if (INTEL_GEN(dev_priv) < 9) {
3331 intel_de_write(dev_priv, PORT_CLK_SEL(port),
3332 hsw_pll_to_ddi_pll_sel(pll));
3333 }
3334
3335 mutex_unlock(&dev_priv->dpll.lock);
3336 }
3337
3338 static void intel_ddi_clk_disable(struct intel_encoder *encoder)
3339 {
3340 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3341 enum port port = encoder->port;
3342 enum phy phy = intel_port_to_phy(dev_priv, port);
3343
3344 if (INTEL_GEN(dev_priv) >= 11) {
3345 if (!intel_phy_is_combo(dev_priv, phy) ||
3346 (IS_JSL_EHL(dev_priv) && port >= PORT_C))
3347 intel_de_write(dev_priv, DDI_CLK_SEL(port),
3348 DDI_CLK_SEL_NONE);
3349 } else if (IS_CANNONLAKE(dev_priv)) {
3350 intel_de_write(dev_priv, DPCLKA_CFGCR0,
3351 intel_de_read(dev_priv, DPCLKA_CFGCR0) | DPCLKA_CFGCR0_DDI_CLK_OFF(port));
3352 } else if (IS_GEN9_BC(dev_priv)) {
3353 intel_de_write(dev_priv, DPLL_CTRL2,
3354 intel_de_read(dev_priv, DPLL_CTRL2) | DPLL_CTRL2_DDI_CLK_OFF(port));
3355 } else if (INTEL_GEN(dev_priv) < 9) {
3356 intel_de_write(dev_priv, PORT_CLK_SEL(port),
3357 PORT_CLK_SEL_NONE);
3358 }
3359 }
3360
3361 static void
3362 icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
3363 const struct intel_crtc_state *crtc_state)
3364 {
3365 struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
3366 enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port);
3367 u32 ln0, ln1, pin_assignment;
3368 u8 width;
3369
3370 if (dig_port->tc_mode == TC_PORT_TBT_ALT)
3371 return;
3372
3373 if (INTEL_GEN(dev_priv) >= 12) {
3374 intel_de_write(dev_priv, HIP_INDEX_REG(tc_port),
3375 HIP_INDEX_VAL(tc_port, 0x0));
3376 ln0 = intel_de_read(dev_priv, DKL_DP_MODE(tc_port));
3377 intel_de_write(dev_priv, HIP_INDEX_REG(tc_port),
3378 HIP_INDEX_VAL(tc_port, 0x1));
3379 ln1 = intel_de_read(dev_priv, DKL_DP_MODE(tc_port));
3380 } else {
3381 ln0 = intel_de_read(dev_priv, MG_DP_MODE(0, tc_port));
3382 ln1 = intel_de_read(dev_priv, MG_DP_MODE(1, tc_port));
3383 }
3384
3385 ln0 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE);
3386 ln1 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE);
3387
3388 /* DPPATC */
3389 pin_assignment = intel_tc_port_get_pin_assignment_mask(dig_port);
3390 width = crtc_state->lane_count;
3391
3392 switch (pin_assignment) {
3393 case 0x0:
3394 drm_WARN_ON(&dev_priv->drm,
3395 dig_port->tc_mode != TC_PORT_LEGACY);
3396 if (width == 1) {
3397 ln1 |= MG_DP_MODE_CFG_DP_X1_MODE;
3398 } else {
3399 ln0 |= MG_DP_MODE_CFG_DP_X2_MODE;
3400 ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
3401 }
3402 break;
3403 case 0x1:
3404 if (width == 4) {
3405 ln0 |= MG_DP_MODE_CFG_DP_X2_MODE;
3406 ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
3407 }
3408 break;
3409 case 0x2:
3410 if (width == 2) {
3411 ln0 |= MG_DP_MODE_CFG_DP_X2_MODE;
3412 ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
3413 }
3414 break;
3415 case 0x3:
3416 case 0x5:
3417 if (width == 1) {
3418 ln0 |= MG_DP_MODE_CFG_DP_X1_MODE;
3419 ln1 |= MG_DP_MODE_CFG_DP_X1_MODE;
3420 } else {
3421 ln0 |= MG_DP_MODE_CFG_DP_X2_MODE;
3422 ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
3423 }
3424 break;
3425 case 0x4:
3426 case 0x6:
3427 if (width == 1) {
3428 ln0 |= MG_DP_MODE_CFG_DP_X1_MODE;
3429 ln1 |= MG_DP_MODE_CFG_DP_X1_MODE;
3430 } else {
3431 ln0 |= MG_DP_MODE_CFG_DP_X2_MODE;
3432 ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
3433 }
3434 break;
3435 default:
3436 MISSING_CASE(pin_assignment);
3437 }
3438
3439 if (INTEL_GEN(dev_priv) >= 12) {
3440 intel_de_write(dev_priv, HIP_INDEX_REG(tc_port),
3441 HIP_INDEX_VAL(tc_port, 0x0));
3442 intel_de_write(dev_priv, DKL_DP_MODE(tc_port), ln0);
3443 intel_de_write(dev_priv, HIP_INDEX_REG(tc_port),
3444 HIP_INDEX_VAL(tc_port, 0x1));
3445 intel_de_write(dev_priv, DKL_DP_MODE(tc_port), ln1);
3446 } else {
3447 intel_de_write(dev_priv, MG_DP_MODE(0, tc_port), ln0);
3448 intel_de_write(dev_priv, MG_DP_MODE(1, tc_port), ln1);
3449 }
3450 }
3451
3452 static enum transcoder
3453 tgl_dp_tp_transcoder(const struct intel_crtc_state *crtc_state)
3454 {
3455 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST))
3456 return crtc_state->mst_master_transcoder;
3457 else
3458 return crtc_state->cpu_transcoder;
3459 }
3460
3461 i915_reg_t dp_tp_ctl_reg(struct intel_encoder *encoder,
3462 const struct intel_crtc_state *crtc_state)
3463 {
3464 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3465
3466 if (INTEL_GEN(dev_priv) >= 12)
3467 return TGL_DP_TP_CTL(tgl_dp_tp_transcoder(crtc_state));
3468 else
3469 return DP_TP_CTL(encoder->port);
3470 }
3471
3472 i915_reg_t dp_tp_status_reg(struct intel_encoder *encoder,
3473 const struct intel_crtc_state *crtc_state)
3474 {
3475 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3476
3477 if (INTEL_GEN(dev_priv) >= 12)
3478 return TGL_DP_TP_STATUS(tgl_dp_tp_transcoder(crtc_state));
3479 else
3480 return DP_TP_STATUS(encoder->port);
3481 }
3482
3483 static void intel_dp_sink_set_fec_ready(struct intel_dp *intel_dp,
3484 const struct intel_crtc_state *crtc_state)
3485 {
3486 struct drm_i915_private *i915 = dp_to_i915(intel_dp);
3487
3488 if (!crtc_state->fec_enable)
3489 return;
3490
3491 if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_FEC_CONFIGURATION, DP_FEC_READY) <= 0)
3492 drm_dbg_kms(&i915->drm,
3493 "Failed to set FEC_READY in the sink\n");
3494 }
3495
3496 static void intel_ddi_enable_fec(struct intel_encoder *encoder,
3497 const struct intel_crtc_state *crtc_state)
3498 {
3499 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3500 struct intel_dp *intel_dp;
3501 u32 val;
3502
3503 if (!crtc_state->fec_enable)
3504 return;
3505
3506 intel_dp = enc_to_intel_dp(encoder);
3507 val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
3508 val |= DP_TP_CTL_FEC_ENABLE;
3509 intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
3510
3511 if (intel_de_wait_for_set(dev_priv,
3512 dp_tp_status_reg(encoder, crtc_state),
3513 DP_TP_STATUS_FEC_ENABLE_LIVE, 1))
3514 drm_err(&dev_priv->drm,
3515 "Timed out waiting for FEC Enable Status\n");
3516 }
3517
3518 static void intel_ddi_disable_fec_state(struct intel_encoder *encoder,
3519 const struct intel_crtc_state *crtc_state)
3520 {
3521 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3522 struct intel_dp *intel_dp;
3523 u32 val;
3524
3525 if (!crtc_state->fec_enable)
3526 return;
3527
3528 intel_dp = enc_to_intel_dp(encoder);
3529 val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
3530 val &= ~DP_TP_CTL_FEC_ENABLE;
3531 intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
3532 intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
3533 }
3534
3535 static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
3536 struct intel_encoder *encoder,
3537 const struct intel_crtc_state *crtc_state,
3538 const struct drm_connector_state *conn_state)
3539 {
3540 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
3541 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3542 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
3543 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
3544 bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST);
3545 int level = intel_ddi_dp_level(intel_dp);
3546
3547 intel_dp_set_link_params(intel_dp,
3548 crtc_state->port_clock,
3549 crtc_state->lane_count);
3550
3551 /*
3552 * 1. Enable Power Wells
3553 *
3554 * This was handled at the beginning of intel_atomic_commit_tail(),
3555 * before we called down into this function.
3556 */
3557
3558 /* 2. Enable Panel Power if PPS is required */
3559 intel_edp_panel_on(intel_dp);
3560
3561 /*
3562 * 3. For non-TBT Type-C ports, set FIA lane count
3563 * (DFLEXDPSP.DPX4TXLATC)
3564 *
3565 * This was done before tgl_ddi_pre_enable_dp by
3566 * hsw_crtc_enable()->intel_encoders_pre_pll_enable().
3567 */
3568
3569 /*
3570 * 4. Enable the port PLL.
3571 *
3572 * The PLL enabling itself was already done before this function by
3573 * hsw_crtc_enable()->intel_enable_shared_dpll(). We need only
3574 * configure the PLL to port mapping here.
3575 */
3576 intel_ddi_clk_select(encoder, crtc_state);
3577
3578 /* 5. If IO power is controlled through PWR_WELL_CTL, Enable IO Power */
3579 if (!intel_phy_is_tc(dev_priv, phy) ||
3580 dig_port->tc_mode != TC_PORT_TBT_ALT)
3581 intel_display_power_get(dev_priv,
3582 dig_port->ddi_io_power_domain);
3583
3584 /* 6. Program DP_MODE */
3585 icl_program_mg_dp_mode(dig_port, crtc_state);
3586
3587 /*
3588 * 7. The rest of the below are substeps under the bspec's "Enable and
3589 * Train Display Port" step. Note that steps that are specific to
3590 * MST will be handled by intel_mst_pre_enable_dp() before/after it
3591 * calls into this function. Also intel_mst_pre_enable_dp() only calls
3592 * us when active_mst_links==0, so any steps designated for "single
3593 * stream or multi-stream master transcoder" can just be performed
3594 * unconditionally here.
3595 */
3596
3597 /*
3598 * 7.a Configure Transcoder Clock Select to direct the Port clock to the
3599 * Transcoder.
3600 */
3601 intel_ddi_enable_pipe_clock(encoder, crtc_state);
3602
3603 /*
3604 * 7.b Configure TRANS_DDI_FUNC_CTL DDI Select, DDI Mode Select & MST
3605 * Transport Select
3606 */
3607 intel_ddi_config_transcoder_func(encoder, crtc_state);
3608
3609 /*
3610 * 7.c Configure & enable DP_TP_CTL with link training pattern 1
3611 * selected
3612 *
3613 * This will be handled by the intel_dp_start_link_train() farther
3614 * down this function.
3615 */
3616
3617 /* 7.e Configure voltage swing and related IO settings */
3618 tgl_ddi_vswing_sequence(encoder, crtc_state, level);
3619
3620 /*
3621 * 7.f Combo PHY: Configure PORT_CL_DW10 Static Power Down to power up
3622 * the used lanes of the DDI.
3623 */
3624 if (intel_phy_is_combo(dev_priv, phy)) {
3625 bool lane_reversal =
3626 dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
3627
3628 intel_combo_phy_power_up_lanes(dev_priv, phy, false,
3629 crtc_state->lane_count,
3630 lane_reversal);
3631 }
3632
3633 /*
3634 * 7.g Configure and enable DDI_BUF_CTL
3635 * 7.h Wait for DDI_BUF_CTL DDI Idle Status = 0b (Not Idle), timeout
3636 * after 500 us.
3637 *
3638 * We only configure what the register value will be here. Actual
3639 * enabling happens during link training farther down.
3640 */
3641 intel_ddi_init_dp_buf_reg(encoder, crtc_state);
3642
3643 if (!is_mst)
3644 intel_dp_set_power(intel_dp, DP_SET_POWER_D0);
3645
3646 intel_dp_sink_set_decompression_state(intel_dp, crtc_state, true);
3647 /*
3648 * DDI FEC: "anticipates enabling FEC encoding sets the FEC_READY bit
3649 * in the FEC_CONFIGURATION register to 1 before initiating link
3650 * training
3651 */
3652 intel_dp_sink_set_fec_ready(intel_dp, crtc_state);
3653
3654 /*
3655 * 7.i Follow DisplayPort specification training sequence (see notes for
3656 * failure handling)
3657 * 7.j If DisplayPort multi-stream - Set DP_TP_CTL link training to Idle
3658 * Pattern, wait for 5 idle patterns (DP_TP_STATUS Min_Idles_Sent)
3659 * (timeout after 800 us)
3660 */
3661 intel_dp_start_link_train(intel_dp, crtc_state);
3662
3663 /* 7.k Set DP_TP_CTL link training to Normal */
3664 if (!is_trans_port_sync_mode(crtc_state))
3665 intel_dp_stop_link_train(intel_dp, crtc_state);
3666
3667 /* 7.l Configure and enable FEC if needed */
3668 intel_ddi_enable_fec(encoder, crtc_state);
3669 if (!crtc_state->bigjoiner)
3670 intel_dsc_enable(encoder, crtc_state);
3671 }
3672
3673 static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
3674 struct intel_encoder *encoder,
3675 const struct intel_crtc_state *crtc_state,
3676 const struct drm_connector_state *conn_state)
3677 {
3678 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
3679 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3680 enum port port = encoder->port;
3681 enum phy phy = intel_port_to_phy(dev_priv, port);
3682 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
3683 bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST);
3684 int level = intel_ddi_dp_level(intel_dp);
3685
3686 if (INTEL_GEN(dev_priv) < 11)
3687 drm_WARN_ON(&dev_priv->drm,
3688 is_mst && (port == PORT_A || port == PORT_E));
3689 else
3690 drm_WARN_ON(&dev_priv->drm, is_mst && port == PORT_A);
3691
3692 intel_dp_set_link_params(intel_dp,
3693 crtc_state->port_clock,
3694 crtc_state->lane_count);
3695
3696 intel_edp_panel_on(intel_dp);
3697
3698 intel_ddi_clk_select(encoder, crtc_state);
3699
3700 if (!intel_phy_is_tc(dev_priv, phy) ||
3701 dig_port->tc_mode != TC_PORT_TBT_ALT)
3702 intel_display_power_get(dev_priv,
3703 dig_port->ddi_io_power_domain);
3704
3705 icl_program_mg_dp_mode(dig_port, crtc_state);
3706
3707 if (INTEL_GEN(dev_priv) >= 11)
3708 icl_ddi_vswing_sequence(encoder, crtc_state, level);
3709 else if (IS_CANNONLAKE(dev_priv))
3710 cnl_ddi_vswing_sequence(encoder, crtc_state, level);
3711 else if (IS_GEN9_LP(dev_priv))
3712 bxt_ddi_vswing_sequence(encoder, crtc_state, level);
3713 else
3714 intel_prepare_dp_ddi_buffers(encoder, crtc_state);
3715
3716 if (intel_phy_is_combo(dev_priv, phy)) {
3717 bool lane_reversal =
3718 dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
3719
3720 intel_combo_phy_power_up_lanes(dev_priv, phy, false,
3721 crtc_state->lane_count,
3722 lane_reversal);
3723 }
3724
3725 intel_ddi_init_dp_buf_reg(encoder, crtc_state);
3726 if (!is_mst)
3727 intel_dp_set_power(intel_dp, DP_SET_POWER_D0);
3728 intel_dp_configure_protocol_converter(intel_dp);
3729 intel_dp_sink_set_decompression_state(intel_dp, crtc_state,
3730 true);
3731 intel_dp_sink_set_fec_ready(intel_dp, crtc_state);
3732 intel_dp_start_link_train(intel_dp, crtc_state);
3733 if ((port != PORT_A || INTEL_GEN(dev_priv) >= 9) &&
3734 !is_trans_port_sync_mode(crtc_state))
3735 intel_dp_stop_link_train(intel_dp, crtc_state);
3736
3737 intel_ddi_enable_fec(encoder, crtc_state);
3738
3739 if (!is_mst)
3740 intel_ddi_enable_pipe_clock(encoder, crtc_state);
3741
3742 if (!crtc_state->bigjoiner)
3743 intel_dsc_enable(encoder, crtc_state);
3744 }
3745
3746 static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state,
3747 struct intel_encoder *encoder,
3748 const struct intel_crtc_state *crtc_state,
3749 const struct drm_connector_state *conn_state)
3750 {
3751 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3752
3753 if (INTEL_GEN(dev_priv) >= 12)
3754 tgl_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state);
3755 else
3756 hsw_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state);
3757
3758 /* MST will call a setting of MSA after an allocating of Virtual Channel
3759 * from MST encoder pre_enable callback.
3760 */
3761 if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
3762 intel_ddi_set_dp_msa(crtc_state, conn_state);
3763
3764 intel_dp_set_m_n(crtc_state, M1_N1);
3765 }
3766 }
3767
3768 static void intel_ddi_pre_enable_hdmi(struct intel_atomic_state *state,
3769 struct intel_encoder *encoder,
3770 const struct intel_crtc_state *crtc_state,
3771 const struct drm_connector_state *conn_state)
3772 {
3773 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
3774 struct intel_hdmi *intel_hdmi = &dig_port->hdmi;
3775 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3776 int level = intel_ddi_hdmi_level(encoder, crtc_state);
3777
3778 intel_dp_dual_mode_set_tmds_output(intel_hdmi, true);
3779 intel_ddi_clk_select(encoder, crtc_state);
3780
3781 intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain);
3782
3783 icl_program_mg_dp_mode(dig_port, crtc_state);
3784
3785 if (INTEL_GEN(dev_priv) >= 12)
3786 tgl_ddi_vswing_sequence(encoder, crtc_state, level);
3787 else if (INTEL_GEN(dev_priv) == 11)
3788 icl_ddi_vswing_sequence(encoder, crtc_state, level);
3789 else if (IS_CANNONLAKE(dev_priv))
3790 cnl_ddi_vswing_sequence(encoder, crtc_state, level);
3791 else if (IS_GEN9_LP(dev_priv))
3792 bxt_ddi_vswing_sequence(encoder, crtc_state, level);
3793 else
3794 intel_prepare_hdmi_ddi_buffers(encoder, level);
3795
3796 if (IS_GEN9_BC(dev_priv))
3797 skl_ddi_set_iboost(encoder, crtc_state, level);
3798
3799 intel_ddi_enable_pipe_clock(encoder, crtc_state);
3800
3801 dig_port->set_infoframes(encoder,
3802 crtc_state->has_infoframe,
3803 crtc_state, conn_state);
3804 }
3805
3806 static void intel_ddi_pre_enable(struct intel_atomic_state *state,
3807 struct intel_encoder *encoder,
3808 const struct intel_crtc_state *crtc_state,
3809 const struct drm_connector_state *conn_state)
3810 {
3811 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
3812 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
3813 enum pipe pipe = crtc->pipe;
3814
3815 /*
3816 * When called from DP MST code:
3817 * - conn_state will be NULL
3818 * - encoder will be the main encoder (ie. mst->primary)
3819 * - the main connector associated with this port
3820 * won't be active or linked to a crtc
3821 * - crtc_state will be the state of the first stream to
3822 * be activated on this port, and it may not be the same
3823 * stream that will be deactivated last, but each stream
3824 * should have a state that is identical when it comes to
3825 * the DP link parameteres
3826 */
3827
3828 drm_WARN_ON(&dev_priv->drm, crtc_state->has_pch_encoder);
3829
3830 if (IS_DG1(dev_priv))
3831 dg1_map_plls_to_ports(encoder, crtc_state);
3832 else if (INTEL_GEN(dev_priv) >= 11)
3833 icl_map_plls_to_ports(encoder, crtc_state);
3834
3835 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
3836
3837 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
3838 intel_ddi_pre_enable_hdmi(state, encoder, crtc_state,
3839 conn_state);
3840 } else {
3841 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
3842
3843 intel_ddi_pre_enable_dp(state, encoder, crtc_state,
3844 conn_state);
3845
3846 /* FIXME precompute everything properly */
3847 /* FIXME how do we turn infoframes off again? */
3848 if (dig_port->lspcon.active && dig_port->dp.has_hdmi_sink)
3849 dig_port->set_infoframes(encoder,
3850 crtc_state->has_infoframe,
3851 crtc_state, conn_state);
3852 }
3853 }
3854
3855 static void intel_disable_ddi_buf(struct intel_encoder *encoder,
3856 const struct intel_crtc_state *crtc_state)
3857 {
3858 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3859 enum port port = encoder->port;
3860 bool wait = false;
3861 u32 val;
3862
3863 val = intel_de_read(dev_priv, DDI_BUF_CTL(port));
3864 if (val & DDI_BUF_CTL_ENABLE) {
3865 val &= ~DDI_BUF_CTL_ENABLE;
3866 intel_de_write(dev_priv, DDI_BUF_CTL(port), val);
3867 wait = true;
3868 }
3869
3870 if (intel_crtc_has_dp_encoder(crtc_state)) {
3871 val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
3872 val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
3873 val |= DP_TP_CTL_LINK_TRAIN_PAT1;
3874 intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
3875 }
3876
3877 /* Disable FEC in DP Sink */
3878 intel_ddi_disable_fec_state(encoder, crtc_state);
3879
3880 if (wait)
3881 intel_wait_ddi_buf_idle(dev_priv, port);
3882 }
3883
3884 static void intel_ddi_post_disable_dp(struct intel_atomic_state *state,
3885 struct intel_encoder *encoder,
3886 const struct intel_crtc_state *old_crtc_state,
3887 const struct drm_connector_state *old_conn_state)
3888 {
3889 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3890 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
3891 struct intel_dp *intel_dp = &dig_port->dp;
3892 bool is_mst = intel_crtc_has_type(old_crtc_state,
3893 INTEL_OUTPUT_DP_MST);
3894 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
3895
3896 if (!is_mst)
3897 intel_dp_set_infoframes(encoder, false,
3898 old_crtc_state, old_conn_state);
3899
3900 /*
3901 * Power down sink before disabling the port, otherwise we end
3902 * up getting interrupts from the sink on detecting link loss.
3903 */
3904 intel_dp_set_power(intel_dp, DP_SET_POWER_D3);
3905
3906 if (INTEL_GEN(dev_priv) >= 12) {
3907 if (is_mst) {
3908 enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder;
3909 u32 val;
3910
3911 val = intel_de_read(dev_priv,
3912 TRANS_DDI_FUNC_CTL(cpu_transcoder));
3913 val &= ~(TGL_TRANS_DDI_PORT_MASK |
3914 TRANS_DDI_MODE_SELECT_MASK);
3915 intel_de_write(dev_priv,
3916 TRANS_DDI_FUNC_CTL(cpu_transcoder),
3917 val);
3918 }
3919 } else {
3920 if (!is_mst)
3921 intel_ddi_disable_pipe_clock(old_crtc_state);
3922 }
3923
3924 intel_disable_ddi_buf(encoder, old_crtc_state);
3925
3926 /*
3927 * From TGL spec: "If single stream or multi-stream master transcoder:
3928 * Configure Transcoder Clock select to direct no clock to the
3929 * transcoder"
3930 */
3931 if (INTEL_GEN(dev_priv) >= 12)
3932 intel_ddi_disable_pipe_clock(old_crtc_state);
3933
3934 intel_edp_panel_vdd_on(intel_dp);
3935 intel_edp_panel_off(intel_dp);
3936
3937 if (!intel_phy_is_tc(dev_priv, phy) ||
3938 dig_port->tc_mode != TC_PORT_TBT_ALT)
3939 intel_display_power_put_unchecked(dev_priv,
3940 dig_port->ddi_io_power_domain);
3941
3942 intel_ddi_clk_disable(encoder);
3943 }
3944
3945 static void intel_ddi_post_disable_hdmi(struct intel_atomic_state *state,
3946 struct intel_encoder *encoder,
3947 const struct intel_crtc_state *old_crtc_state,
3948 const struct drm_connector_state *old_conn_state)
3949 {
3950 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3951 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
3952 struct intel_hdmi *intel_hdmi = &dig_port->hdmi;
3953
3954 dig_port->set_infoframes(encoder, false,
3955 old_crtc_state, old_conn_state);
3956
3957 intel_ddi_disable_pipe_clock(old_crtc_state);
3958
3959 intel_disable_ddi_buf(encoder, old_crtc_state);
3960
3961 intel_display_power_put_unchecked(dev_priv,
3962 dig_port->ddi_io_power_domain);
3963
3964 intel_ddi_clk_disable(encoder);
3965
3966 intel_dp_dual_mode_set_tmds_output(intel_hdmi, false);
3967 }
3968
3969 static void intel_ddi_post_disable(struct intel_atomic_state *state,
3970 struct intel_encoder *encoder,
3971 const struct intel_crtc_state *old_crtc_state,
3972 const struct drm_connector_state *old_conn_state)
3973 {
3974 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
3975 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
3976 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
3977 bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
3978
3979 if (!intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DP_MST)) {
3980 intel_crtc_vblank_off(old_crtc_state);
3981
3982 intel_disable_pipe(old_crtc_state);
3983
3984 intel_ddi_disable_transcoder_func(old_crtc_state);
3985
3986 intel_dsc_disable(old_crtc_state);
3987
3988 if (INTEL_GEN(dev_priv) >= 9)
3989 skl_scaler_disable(old_crtc_state);
3990 else
3991 ilk_pfit_disable(old_crtc_state);
3992 }
3993
3994 if (old_crtc_state->bigjoiner_linked_crtc) {
3995 struct intel_atomic_state *state =
3996 to_intel_atomic_state(old_crtc_state->uapi.state);
3997 struct intel_crtc *slave =
3998 old_crtc_state->bigjoiner_linked_crtc;
3999 const struct intel_crtc_state *old_slave_crtc_state =
4000 intel_atomic_get_old_crtc_state(state, slave);
4001
4002 intel_crtc_vblank_off(old_slave_crtc_state);
4003 trace_intel_pipe_disable(slave);
4004
4005 intel_dsc_disable(old_slave_crtc_state);
4006 skl_scaler_disable(old_slave_crtc_state);
4007 }
4008
4009 /*
4010 * When called from DP MST code:
4011 * - old_conn_state will be NULL
4012 * - encoder will be the main encoder (ie. mst->primary)
4013 * - the main connector associated with this port
4014 * won't be active or linked to a crtc
4015 * - old_crtc_state will be the state of the last stream to
4016 * be deactivated on this port, and it may not be the same
4017 * stream that was activated last, but each stream
4018 * should have a state that is identical when it comes to
4019 * the DP link parameteres
4020 */
4021
4022 if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
4023 intel_ddi_post_disable_hdmi(state, encoder, old_crtc_state,
4024 old_conn_state);
4025 else
4026 intel_ddi_post_disable_dp(state, encoder, old_crtc_state,
4027 old_conn_state);
4028
4029 if (IS_DG1(dev_priv))
4030 dg1_unmap_plls_to_ports(encoder);
4031 else if (INTEL_GEN(dev_priv) >= 11)
4032 icl_unmap_plls_to_ports(encoder);
4033
4034 if (intel_crtc_has_dp_encoder(old_crtc_state) || is_tc_port)
4035 intel_display_power_put_unchecked(dev_priv,
4036 intel_ddi_main_link_aux_domain(dig_port));
4037
4038 if (is_tc_port)
4039 intel_tc_port_put_link(dig_port);
4040 }
4041
4042 void intel_ddi_fdi_post_disable(struct intel_atomic_state *state,
4043 struct intel_encoder *encoder,
4044 const struct intel_crtc_state *old_crtc_state,
4045 const struct drm_connector_state *old_conn_state)
4046 {
4047 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4048 u32 val;
4049
4050 /*
4051 * Bspec lists this as both step 13 (before DDI_BUF_CTL disable)
4052 * and step 18 (after clearing PORT_CLK_SEL). Based on a BUN,
4053 * step 13 is the correct place for it. Step 18 is where it was
4054 * originally before the BUN.
4055 */
4056 val = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A));
4057 val &= ~FDI_RX_ENABLE;
4058 intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), val);
4059
4060 intel_disable_ddi_buf(encoder, old_crtc_state);
4061 intel_ddi_clk_disable(encoder);
4062
4063 val = intel_de_read(dev_priv, FDI_RX_MISC(PIPE_A));
4064 val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK);
4065 val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2);
4066 intel_de_write(dev_priv, FDI_RX_MISC(PIPE_A), val);
4067
4068 val = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A));
4069 val &= ~FDI_PCDCLK;
4070 intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), val);
4071
4072 val = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A));
4073 val &= ~FDI_RX_PLL_ENABLE;
4074 intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), val);
4075 }
4076
4077 static void trans_port_sync_stop_link_train(struct intel_atomic_state *state,
4078 struct intel_encoder *encoder,
4079 const struct intel_crtc_state *crtc_state)
4080 {
4081 const struct drm_connector_state *conn_state;
4082 struct drm_connector *conn;
4083 int i;
4084
4085 if (!crtc_state->sync_mode_slaves_mask)
4086 return;
4087
4088 for_each_new_connector_in_state(&state->base, conn, conn_state, i) {
4089 struct intel_encoder *slave_encoder =
4090 to_intel_encoder(conn_state->best_encoder);
4091 struct intel_crtc *slave_crtc = to_intel_crtc(conn_state->crtc);
4092 const struct intel_crtc_state *slave_crtc_state;
4093
4094 if (!slave_crtc)
4095 continue;
4096
4097 slave_crtc_state =
4098 intel_atomic_get_new_crtc_state(state, slave_crtc);
4099
4100 if (slave_crtc_state->master_transcoder !=
4101 crtc_state->cpu_transcoder)
4102 continue;
4103
4104 intel_dp_stop_link_train(enc_to_intel_dp(slave_encoder),
4105 slave_crtc_state);
4106 }
4107
4108 usleep_range(200, 400);
4109
4110 intel_dp_stop_link_train(enc_to_intel_dp(encoder),
4111 crtc_state);
4112 }
4113
4114 static void intel_enable_ddi_dp(struct intel_atomic_state *state,
4115 struct intel_encoder *encoder,
4116 const struct intel_crtc_state *crtc_state,
4117 const struct drm_connector_state *conn_state)
4118 {
4119 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4120 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
4121 enum port port = encoder->port;
4122
4123 if (port == PORT_A && INTEL_GEN(dev_priv) < 9)
4124 intel_dp_stop_link_train(intel_dp, crtc_state);
4125
4126 intel_edp_backlight_on(crtc_state, conn_state);
4127 intel_psr_enable(intel_dp, crtc_state, conn_state);
4128 intel_dp_set_infoframes(encoder, true, crtc_state, conn_state);
4129 intel_edp_drrs_enable(intel_dp, crtc_state);
4130
4131 if (crtc_state->has_audio)
4132 intel_audio_codec_enable(encoder, crtc_state, conn_state);
4133
4134 trans_port_sync_stop_link_train(state, encoder, crtc_state);
4135 }
4136
4137 static i915_reg_t
4138 gen9_chicken_trans_reg_by_port(struct drm_i915_private *dev_priv,
4139 enum port port)
4140 {
4141 static const enum transcoder trans[] = {
4142 [PORT_A] = TRANSCODER_EDP,
4143 [PORT_B] = TRANSCODER_A,
4144 [PORT_C] = TRANSCODER_B,
4145 [PORT_D] = TRANSCODER_C,
4146 [PORT_E] = TRANSCODER_A,
4147 };
4148
4149 drm_WARN_ON(&dev_priv->drm, INTEL_GEN(dev_priv) < 9);
4150
4151 if (drm_WARN_ON(&dev_priv->drm, port < PORT_A || port > PORT_E))
4152 port = PORT_A;
4153
4154 return CHICKEN_TRANS(trans[port]);
4155 }
4156
4157 static void intel_enable_ddi_hdmi(struct intel_atomic_state *state,
4158 struct intel_encoder *encoder,
4159 const struct intel_crtc_state *crtc_state,
4160 const struct drm_connector_state *conn_state)
4161 {
4162 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4163 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
4164 struct drm_connector *connector = conn_state->connector;
4165 enum port port = encoder->port;
4166
4167 if (!intel_hdmi_handle_sink_scrambling(encoder, connector,
4168 crtc_state->hdmi_high_tmds_clock_ratio,
4169 crtc_state->hdmi_scrambling))
4170 drm_dbg_kms(&dev_priv->drm,
4171 "[CONNECTOR:%d:%s] Failed to configure sink scrambling/TMDS bit clock ratio\n",
4172 connector->base.id, connector->name);
4173
4174 /* Display WA #1143: skl,kbl,cfl */
4175 if (IS_GEN9_BC(dev_priv)) {
4176 /*
4177 * For some reason these chicken bits have been
4178 * stuffed into a transcoder register, event though
4179 * the bits affect a specific DDI port rather than
4180 * a specific transcoder.
4181 */
4182 i915_reg_t reg = gen9_chicken_trans_reg_by_port(dev_priv, port);
4183 u32 val;
4184
4185 val = intel_de_read(dev_priv, reg);
4186
4187 if (port == PORT_E)
4188 val |= DDIE_TRAINING_OVERRIDE_ENABLE |
4189 DDIE_TRAINING_OVERRIDE_VALUE;
4190 else
4191 val |= DDI_TRAINING_OVERRIDE_ENABLE |
4192 DDI_TRAINING_OVERRIDE_VALUE;
4193
4194 intel_de_write(dev_priv, reg, val);
4195 intel_de_posting_read(dev_priv, reg);
4196
4197 udelay(1);
4198
4199 if (port == PORT_E)
4200 val &= ~(DDIE_TRAINING_OVERRIDE_ENABLE |
4201 DDIE_TRAINING_OVERRIDE_VALUE);
4202 else
4203 val &= ~(DDI_TRAINING_OVERRIDE_ENABLE |
4204 DDI_TRAINING_OVERRIDE_VALUE);
4205
4206 intel_de_write(dev_priv, reg, val);
4207 }
4208
4209 /* In HDMI/DVI mode, the port width, and swing/emphasis values
4210 * are ignored so nothing special needs to be done besides
4211 * enabling the port.
4212 */
4213 intel_de_write(dev_priv, DDI_BUF_CTL(port),
4214 dig_port->saved_port_bits | DDI_BUF_CTL_ENABLE);
4215
4216 if (crtc_state->has_audio)
4217 intel_audio_codec_enable(encoder, crtc_state, conn_state);
4218 }
4219
4220 static void intel_enable_ddi(struct intel_atomic_state *state,
4221 struct intel_encoder *encoder,
4222 const struct intel_crtc_state *crtc_state,
4223 const struct drm_connector_state *conn_state)
4224 {
4225 drm_WARN_ON(state->base.dev, crtc_state->has_pch_encoder);
4226
4227 if (!crtc_state->bigjoiner_slave)
4228 intel_ddi_enable_transcoder_func(encoder, crtc_state);
4229
4230 intel_enable_pipe(crtc_state);
4231
4232 intel_crtc_vblank_on(crtc_state);
4233
4234 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
4235 intel_enable_ddi_hdmi(state, encoder, crtc_state, conn_state);
4236 else
4237 intel_enable_ddi_dp(state, encoder, crtc_state, conn_state);
4238
4239 /* Enable hdcp if it's desired */
4240 if (conn_state->content_protection ==
4241 DRM_MODE_CONTENT_PROTECTION_DESIRED)
4242 intel_hdcp_enable(to_intel_connector(conn_state->connector),
4243 crtc_state->cpu_transcoder,
4244 (u8)conn_state->hdcp_content_type);
4245 }
4246
4247 static void intel_disable_ddi_dp(struct intel_atomic_state *state,
4248 struct intel_encoder *encoder,
4249 const struct intel_crtc_state *old_crtc_state,
4250 const struct drm_connector_state *old_conn_state)
4251 {
4252 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
4253
4254 intel_dp->link_trained = false;
4255
4256 if (old_crtc_state->has_audio)
4257 intel_audio_codec_disable(encoder,
4258 old_crtc_state, old_conn_state);
4259
4260 intel_edp_drrs_disable(intel_dp, old_crtc_state);
4261 intel_psr_disable(intel_dp, old_crtc_state);
4262 intel_edp_backlight_off(old_conn_state);
4263 /* Disable the decompression in DP Sink */
4264 intel_dp_sink_set_decompression_state(intel_dp, old_crtc_state,
4265 false);
4266 }
4267
4268 static void intel_disable_ddi_hdmi(struct intel_atomic_state *state,
4269 struct intel_encoder *encoder,
4270 const struct intel_crtc_state *old_crtc_state,
4271 const struct drm_connector_state *old_conn_state)
4272 {
4273 struct drm_i915_private *i915 = to_i915(encoder->base.dev);
4274 struct drm_connector *connector = old_conn_state->connector;
4275
4276 if (old_crtc_state->has_audio)
4277 intel_audio_codec_disable(encoder,
4278 old_crtc_state, old_conn_state);
4279
4280 if (!intel_hdmi_handle_sink_scrambling(encoder, connector,
4281 false, false))
4282 drm_dbg_kms(&i915->drm,
4283 "[CONNECTOR:%d:%s] Failed to reset sink scrambling/TMDS bit clock ratio\n",
4284 connector->base.id, connector->name);
4285 }
4286
4287 static void intel_disable_ddi(struct intel_atomic_state *state,
4288 struct intel_encoder *encoder,
4289 const struct intel_crtc_state *old_crtc_state,
4290 const struct drm_connector_state *old_conn_state)
4291 {
4292 intel_hdcp_disable(to_intel_connector(old_conn_state->connector));
4293
4294 if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
4295 intel_disable_ddi_hdmi(state, encoder, old_crtc_state,
4296 old_conn_state);
4297 else
4298 intel_disable_ddi_dp(state, encoder, old_crtc_state,
4299 old_conn_state);
4300 }
4301
4302 static void intel_ddi_update_pipe_dp(struct intel_atomic_state *state,
4303 struct intel_encoder *encoder,
4304 const struct intel_crtc_state *crtc_state,
4305 const struct drm_connector_state *conn_state)
4306 {
4307 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
4308
4309 intel_ddi_set_dp_msa(crtc_state, conn_state);
4310
4311 intel_psr_update(intel_dp, crtc_state, conn_state);
4312 intel_dp_set_infoframes(encoder, true, crtc_state, conn_state);
4313 intel_edp_drrs_update(intel_dp, crtc_state);
4314
4315 intel_panel_update_backlight(state, encoder, crtc_state, conn_state);
4316 }
4317
4318 void intel_ddi_update_pipe(struct intel_atomic_state *state,
4319 struct intel_encoder *encoder,
4320 const struct intel_crtc_state *crtc_state,
4321 const struct drm_connector_state *conn_state)
4322 {
4323
4324 if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) &&
4325 !intel_encoder_is_mst(encoder))
4326 intel_ddi_update_pipe_dp(state, encoder, crtc_state,
4327 conn_state);
4328
4329 intel_hdcp_update_pipe(state, encoder, crtc_state, conn_state);
4330 }
4331
4332 static void
4333 intel_ddi_update_prepare(struct intel_atomic_state *state,
4334 struct intel_encoder *encoder,
4335 struct intel_crtc *crtc)
4336 {
4337 struct intel_crtc_state *crtc_state =
4338 crtc ? intel_atomic_get_new_crtc_state(state, crtc) : NULL;
4339 int required_lanes = crtc_state ? crtc_state->lane_count : 1;
4340
4341 drm_WARN_ON(state->base.dev, crtc && crtc->active);
4342
4343 intel_tc_port_get_link(enc_to_dig_port(encoder),
4344 required_lanes);
4345 if (crtc_state && crtc_state->hw.active)
4346 intel_update_active_dpll(state, crtc, encoder);
4347 }
4348
4349 static void
4350 intel_ddi_update_complete(struct intel_atomic_state *state,
4351 struct intel_encoder *encoder,
4352 struct intel_crtc *crtc)
4353 {
4354 intel_tc_port_put_link(enc_to_dig_port(encoder));
4355 }
4356
4357 static void
4358 intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
4359 struct intel_encoder *encoder,
4360 const struct intel_crtc_state *crtc_state,
4361 const struct drm_connector_state *conn_state)
4362 {
4363 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4364 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
4365 enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
4366 bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
4367
4368 if (is_tc_port)
4369 intel_tc_port_get_link(dig_port, crtc_state->lane_count);
4370
4371 if (intel_crtc_has_dp_encoder(crtc_state) || is_tc_port)
4372 intel_display_power_get(dev_priv,
4373 intel_ddi_main_link_aux_domain(dig_port));
4374
4375 if (is_tc_port && dig_port->tc_mode != TC_PORT_TBT_ALT)
4376 /*
4377 * Program the lane count for static/dynamic connections on
4378 * Type-C ports. Skip this step for TBT.
4379 */
4380 intel_tc_port_set_fia_lane_count(dig_port, crtc_state->lane_count);
4381 else if (IS_GEN9_LP(dev_priv))
4382 bxt_ddi_phy_set_lane_optim_mask(encoder,
4383 crtc_state->lane_lat_optim_mask);
4384 }
4385
4386 static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp,
4387 const struct intel_crtc_state *crtc_state)
4388 {
4389 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
4390 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4391 enum port port = encoder->port;
4392 u32 dp_tp_ctl, ddi_buf_ctl;
4393 bool wait = false;
4394
4395 dp_tp_ctl = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
4396
4397 if (dp_tp_ctl & DP_TP_CTL_ENABLE) {
4398 ddi_buf_ctl = intel_de_read(dev_priv, DDI_BUF_CTL(port));
4399 if (ddi_buf_ctl & DDI_BUF_CTL_ENABLE) {
4400 intel_de_write(dev_priv, DDI_BUF_CTL(port),
4401 ddi_buf_ctl & ~DDI_BUF_CTL_ENABLE);
4402 wait = true;
4403 }
4404
4405 dp_tp_ctl &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
4406 dp_tp_ctl |= DP_TP_CTL_LINK_TRAIN_PAT1;
4407 intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), dp_tp_ctl);
4408 intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
4409
4410 if (wait)
4411 intel_wait_ddi_buf_idle(dev_priv, port);
4412 }
4413
4414 dp_tp_ctl = DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT1;
4415 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
4416 dp_tp_ctl |= DP_TP_CTL_MODE_MST;
4417 } else {
4418 dp_tp_ctl |= DP_TP_CTL_MODE_SST;
4419 if (drm_dp_enhanced_frame_cap(intel_dp->dpcd))
4420 dp_tp_ctl |= DP_TP_CTL_ENHANCED_FRAME_ENABLE;
4421 }
4422 intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), dp_tp_ctl);
4423 intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
4424
4425 intel_dp->DP |= DDI_BUF_CTL_ENABLE;
4426 intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP);
4427 intel_de_posting_read(dev_priv, DDI_BUF_CTL(port));
4428
4429 intel_wait_ddi_buf_active(dev_priv, port);
4430 }
4431
4432 static void intel_ddi_set_link_train(struct intel_dp *intel_dp,
4433 const struct intel_crtc_state *crtc_state,
4434 u8 dp_train_pat)
4435 {
4436 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
4437 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4438 u32 temp;
4439
4440 temp = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
4441
4442 temp &= ~DP_TP_CTL_LINK_TRAIN_MASK;
4443 switch (intel_dp_training_pattern_symbol(dp_train_pat)) {
4444 case DP_TRAINING_PATTERN_DISABLE:
4445 temp |= DP_TP_CTL_LINK_TRAIN_NORMAL;
4446 break;
4447 case DP_TRAINING_PATTERN_1:
4448 temp |= DP_TP_CTL_LINK_TRAIN_PAT1;
4449 break;
4450 case DP_TRAINING_PATTERN_2:
4451 temp |= DP_TP_CTL_LINK_TRAIN_PAT2;
4452 break;
4453 case DP_TRAINING_PATTERN_3:
4454 temp |= DP_TP_CTL_LINK_TRAIN_PAT3;
4455 break;
4456 case DP_TRAINING_PATTERN_4:
4457 temp |= DP_TP_CTL_LINK_TRAIN_PAT4;
4458 break;
4459 }
4460
4461 intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), temp);
4462 }
4463
4464 static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp,
4465 const struct intel_crtc_state *crtc_state)
4466 {
4467 struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
4468 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4469 enum port port = encoder->port;
4470 u32 val;
4471
4472 val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
4473 val &= ~DP_TP_CTL_LINK_TRAIN_MASK;
4474 val |= DP_TP_CTL_LINK_TRAIN_IDLE;
4475 intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
4476
4477 /*
4478 * Until TGL on PORT_A we can have only eDP in SST mode. There the only
4479 * reason we need to set idle transmission mode is to work around a HW
4480 * issue where we enable the pipe while not in idle link-training mode.
4481 * In this case there is requirement to wait for a minimum number of
4482 * idle patterns to be sent.
4483 */
4484 if (port == PORT_A && INTEL_GEN(dev_priv) < 12)
4485 return;
4486
4487 if (intel_de_wait_for_set(dev_priv,
4488 dp_tp_status_reg(encoder, crtc_state),
4489 DP_TP_STATUS_IDLE_DONE, 1))
4490 drm_err(&dev_priv->drm,
4491 "Timed out waiting for DP idle patterns\n");
4492 }
4493
4494 static bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
4495 enum transcoder cpu_transcoder)
4496 {
4497 if (cpu_transcoder == TRANSCODER_EDP)
4498 return false;
4499
4500 if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO))
4501 return false;
4502
4503 return intel_de_read(dev_priv, HSW_AUD_PIN_ELD_CP_VLD) &
4504 AUDIO_OUTPUT_ENABLE(cpu_transcoder);
4505 }
4506
4507 void intel_ddi_compute_min_voltage_level(struct drm_i915_private *dev_priv,
4508 struct intel_crtc_state *crtc_state)
4509 {
4510 if (INTEL_GEN(dev_priv) >= 12 && crtc_state->port_clock > 594000)
4511 crtc_state->min_voltage_level = 2;
4512 else if (IS_JSL_EHL(dev_priv) && crtc_state->port_clock > 594000)
4513 crtc_state->min_voltage_level = 3;
4514 else if (INTEL_GEN(dev_priv) >= 11 && crtc_state->port_clock > 594000)
4515 crtc_state->min_voltage_level = 1;
4516 else if (IS_CANNONLAKE(dev_priv) && crtc_state->port_clock > 594000)
4517 crtc_state->min_voltage_level = 2;
4518 }
4519
4520 static enum transcoder bdw_transcoder_master_readout(struct drm_i915_private *dev_priv,
4521 enum transcoder cpu_transcoder)
4522 {
4523 u32 master_select;
4524
4525 if (INTEL_GEN(dev_priv) >= 11) {
4526 u32 ctl2 = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL2(cpu_transcoder));
4527
4528 if ((ctl2 & PORT_SYNC_MODE_ENABLE) == 0)
4529 return INVALID_TRANSCODER;
4530
4531 master_select = REG_FIELD_GET(PORT_SYNC_MODE_MASTER_SELECT_MASK, ctl2);
4532 } else {
4533 u32 ctl = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
4534
4535 if ((ctl & TRANS_DDI_PORT_SYNC_ENABLE) == 0)
4536 return INVALID_TRANSCODER;
4537
4538 master_select = REG_FIELD_GET(TRANS_DDI_PORT_SYNC_MASTER_SELECT_MASK, ctl);
4539 }
4540
4541 if (master_select == 0)
4542 return TRANSCODER_EDP;
4543 else
4544 return master_select - 1;
4545 }
4546
4547 static void bdw_get_trans_port_sync_config(struct intel_crtc_state *crtc_state)
4548 {
4549 struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
4550 u32 transcoders = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
4551 BIT(TRANSCODER_C) | BIT(TRANSCODER_D);
4552 enum transcoder cpu_transcoder;
4553
4554 crtc_state->master_transcoder =
4555 bdw_transcoder_master_readout(dev_priv, crtc_state->cpu_transcoder);
4556
4557 for_each_cpu_transcoder_masked(dev_priv, cpu_transcoder, transcoders) {
4558 enum intel_display_power_domain power_domain;
4559 intel_wakeref_t trans_wakeref;
4560
4561 power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
4562 trans_wakeref = intel_display_power_get_if_enabled(dev_priv,
4563 power_domain);
4564
4565 if (!trans_wakeref)
4566 continue;
4567
4568 if (bdw_transcoder_master_readout(dev_priv, cpu_transcoder) ==
4569 crtc_state->cpu_transcoder)
4570 crtc_state->sync_mode_slaves_mask |= BIT(cpu_transcoder);
4571
4572 intel_display_power_put(dev_priv, power_domain, trans_wakeref);
4573 }
4574
4575 drm_WARN_ON(&dev_priv->drm,
4576 crtc_state->master_transcoder != INVALID_TRANSCODER &&
4577 crtc_state->sync_mode_slaves_mask);
4578 }
4579
4580 static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
4581 struct intel_crtc_state *pipe_config)
4582 {
4583 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4584 struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc);
4585 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
4586 u32 temp, flags = 0;
4587
4588 temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
4589 if (temp & TRANS_DDI_PHSYNC)
4590 flags |= DRM_MODE_FLAG_PHSYNC;
4591 else
4592 flags |= DRM_MODE_FLAG_NHSYNC;
4593 if (temp & TRANS_DDI_PVSYNC)
4594 flags |= DRM_MODE_FLAG_PVSYNC;
4595 else
4596 flags |= DRM_MODE_FLAG_NVSYNC;
4597
4598 pipe_config->hw.adjusted_mode.flags |= flags;
4599
4600 switch (temp & TRANS_DDI_BPC_MASK) {
4601 case TRANS_DDI_BPC_6:
4602 pipe_config->pipe_bpp = 18;
4603 break;
4604 case TRANS_DDI_BPC_8:
4605 pipe_config->pipe_bpp = 24;
4606 break;
4607 case TRANS_DDI_BPC_10:
4608 pipe_config->pipe_bpp = 30;
4609 break;
4610 case TRANS_DDI_BPC_12:
4611 pipe_config->pipe_bpp = 36;
4612 break;
4613 default:
4614 break;
4615 }
4616
4617 switch (temp & TRANS_DDI_MODE_SELECT_MASK) {
4618 case TRANS_DDI_MODE_SELECT_HDMI:
4619 pipe_config->has_hdmi_sink = true;
4620
4621 pipe_config->infoframes.enable |=
4622 intel_hdmi_infoframes_enabled(encoder, pipe_config);
4623
4624 if (pipe_config->infoframes.enable)
4625 pipe_config->has_infoframe = true;
4626
4627 if (temp & TRANS_DDI_HDMI_SCRAMBLING)
4628 pipe_config->hdmi_scrambling = true;
4629 if (temp & TRANS_DDI_HIGH_TMDS_CHAR_RATE)
4630 pipe_config->hdmi_high_tmds_clock_ratio = true;
4631 fallthrough;
4632 case TRANS_DDI_MODE_SELECT_DVI:
4633 pipe_config->output_types |= BIT(INTEL_OUTPUT_HDMI);
4634 pipe_config->lane_count = 4;
4635 break;
4636 case TRANS_DDI_MODE_SELECT_FDI:
4637 pipe_config->output_types |= BIT(INTEL_OUTPUT_ANALOG);
4638 break;
4639 case TRANS_DDI_MODE_SELECT_DP_SST:
4640 if (encoder->type == INTEL_OUTPUT_EDP)
4641 pipe_config->output_types |= BIT(INTEL_OUTPUT_EDP);
4642 else
4643 pipe_config->output_types |= BIT(INTEL_OUTPUT_DP);
4644 pipe_config->lane_count =
4645 ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1;
4646 intel_dp_get_m_n(intel_crtc, pipe_config);
4647
4648 if (INTEL_GEN(dev_priv) >= 11) {
4649 i915_reg_t dp_tp_ctl = dp_tp_ctl_reg(encoder, pipe_config);
4650
4651 pipe_config->fec_enable =
4652 intel_de_read(dev_priv, dp_tp_ctl) & DP_TP_CTL_FEC_ENABLE;
4653
4654 drm_dbg_kms(&dev_priv->drm,
4655 "[ENCODER:%d:%s] Fec status: %u\n",
4656 encoder->base.base.id, encoder->base.name,
4657 pipe_config->fec_enable);
4658 }
4659
4660 pipe_config->infoframes.enable |=
4661 intel_hdmi_infoframes_enabled(encoder, pipe_config);
4662
4663 break;
4664 case TRANS_DDI_MODE_SELECT_DP_MST:
4665 pipe_config->output_types |= BIT(INTEL_OUTPUT_DP_MST);
4666 pipe_config->lane_count =
4667 ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1;
4668
4669 if (INTEL_GEN(dev_priv) >= 12)
4670 pipe_config->mst_master_transcoder =
4671 REG_FIELD_GET(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, temp);
4672
4673 intel_dp_get_m_n(intel_crtc, pipe_config);
4674
4675 pipe_config->infoframes.enable |=
4676 intel_hdmi_infoframes_enabled(encoder, pipe_config);
4677 break;
4678 default:
4679 break;
4680 }
4681 }
4682
4683 void intel_ddi_get_config(struct intel_encoder *encoder,
4684 struct intel_crtc_state *pipe_config)
4685 {
4686 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4687 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
4688
4689 /* XXX: DSI transcoder paranoia */
4690 if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder)))
4691 return;
4692
4693 if (pipe_config->bigjoiner_slave) {
4694 /* read out pipe settings from master */
4695 enum transcoder save = pipe_config->cpu_transcoder;
4696
4697 /* Our own transcoder needs to be disabled when reading it in intel_ddi_read_func_ctl() */
4698 WARN_ON(pipe_config->output_types);
4699 pipe_config->cpu_transcoder = (enum transcoder)pipe_config->bigjoiner_linked_crtc->pipe;
4700 intel_ddi_read_func_ctl(encoder, pipe_config);
4701 pipe_config->cpu_transcoder = save;
4702 } else {
4703 intel_ddi_read_func_ctl(encoder, pipe_config);
4704 }
4705
4706 pipe_config->has_audio =
4707 intel_ddi_is_audio_enabled(dev_priv, cpu_transcoder);
4708
4709 if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.bpp &&
4710 pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) {
4711 /*
4712 * This is a big fat ugly hack.
4713 *
4714 * Some machines in UEFI boot mode provide us a VBT that has 18
4715 * bpp and 1.62 GHz link bandwidth for eDP, which for reasons
4716 * unknown we fail to light up. Yet the same BIOS boots up with
4717 * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as
4718 * max, not what it tells us to use.
4719 *
4720 * Note: This will still be broken if the eDP panel is not lit
4721 * up by the BIOS, and thus we can't get the mode at module
4722 * load.
4723 */
4724 drm_dbg_kms(&dev_priv->drm,
4725 "pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n",
4726 pipe_config->pipe_bpp, dev_priv->vbt.edp.bpp);
4727 dev_priv->vbt.edp.bpp = pipe_config->pipe_bpp;
4728 }
4729
4730 if (!pipe_config->bigjoiner_slave)
4731 intel_ddi_clock_get(encoder, pipe_config);
4732
4733 if (IS_GEN9_LP(dev_priv))
4734 pipe_config->lane_lat_optim_mask =
4735 bxt_ddi_phy_get_lane_lat_optim_mask(encoder);
4736
4737 intel_ddi_compute_min_voltage_level(dev_priv, pipe_config);
4738
4739 intel_hdmi_read_gcp_infoframe(encoder, pipe_config);
4740
4741 intel_read_infoframe(encoder, pipe_config,
4742 HDMI_INFOFRAME_TYPE_AVI,
4743 &pipe_config->infoframes.avi);
4744 intel_read_infoframe(encoder, pipe_config,
4745 HDMI_INFOFRAME_TYPE_SPD,
4746 &pipe_config->infoframes.spd);
4747 intel_read_infoframe(encoder, pipe_config,
4748 HDMI_INFOFRAME_TYPE_VENDOR,
4749 &pipe_config->infoframes.hdmi);
4750 intel_read_infoframe(encoder, pipe_config,
4751 HDMI_INFOFRAME_TYPE_DRM,
4752 &pipe_config->infoframes.drm);
4753
4754 if (INTEL_GEN(dev_priv) >= 8)
4755 bdw_get_trans_port_sync_config(pipe_config);
4756
4757 intel_read_dp_sdp(encoder, pipe_config, HDMI_PACKET_TYPE_GAMUT_METADATA);
4758 intel_read_dp_sdp(encoder, pipe_config, DP_SDP_VSC);
4759 }
4760
4761 static void intel_ddi_sync_state(struct intel_encoder *encoder,
4762 const struct intel_crtc_state *crtc_state)
4763 {
4764 if (intel_crtc_has_dp_encoder(crtc_state))
4765 intel_dp_sync_state(encoder, crtc_state);
4766 }
4767
4768 static bool intel_ddi_initial_fastset_check(struct intel_encoder *encoder,
4769 struct intel_crtc_state *crtc_state)
4770 {
4771 if (intel_crtc_has_dp_encoder(crtc_state))
4772 return intel_dp_initial_fastset_check(encoder, crtc_state);
4773
4774 return true;
4775 }
4776
4777 static enum intel_output_type
4778 intel_ddi_compute_output_type(struct intel_encoder *encoder,
4779 struct intel_crtc_state *crtc_state,
4780 struct drm_connector_state *conn_state)
4781 {
4782 switch (conn_state->connector->connector_type) {
4783 case DRM_MODE_CONNECTOR_HDMIA:
4784 return INTEL_OUTPUT_HDMI;
4785 case DRM_MODE_CONNECTOR_eDP:
4786 return INTEL_OUTPUT_EDP;
4787 case DRM_MODE_CONNECTOR_DisplayPort:
4788 return INTEL_OUTPUT_DP;
4789 default:
4790 MISSING_CASE(conn_state->connector->connector_type);
4791 return INTEL_OUTPUT_UNUSED;
4792 }
4793 }
4794
4795 static int intel_ddi_compute_config(struct intel_encoder *encoder,
4796 struct intel_crtc_state *pipe_config,
4797 struct drm_connector_state *conn_state)
4798 {
4799 struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
4800 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
4801 enum port port = encoder->port;
4802 int ret;
4803
4804 if (HAS_TRANSCODER(dev_priv, TRANSCODER_EDP) && port == PORT_A)
4805 pipe_config->cpu_transcoder = TRANSCODER_EDP;
4806
4807 if (intel_crtc_has_type(pipe_config, INTEL_OUTPUT_HDMI)) {
4808 ret = intel_hdmi_compute_config(encoder, pipe_config, conn_state);
4809 } else {
4810 ret = intel_dp_compute_config(encoder, pipe_config, conn_state);
4811 }
4812
4813 if (ret)
4814 return ret;
4815
4816 if (IS_HASWELL(dev_priv) && crtc->pipe == PIPE_A &&
4817 pipe_config->cpu_transcoder == TRANSCODER_EDP)
4818 pipe_config->pch_pfit.force_thru =
4819 pipe_config->pch_pfit.enabled ||
4820 pipe_config->crc_enabled;
4821
4822 if (IS_GEN9_LP(dev_priv))
4823 pipe_config->lane_lat_optim_mask =
4824 bxt_ddi_phy_calc_lane_lat_optim_mask(pipe_config->lane_count);
4825
4826 intel_ddi_compute_min_voltage_level(dev_priv, pipe_config);
4827
4828 return 0;
4829 }
4830
4831 static bool mode_equal(const struct drm_display_mode *mode1,
4832 const struct drm_display_mode *mode2)
4833 {
4834 return drm_mode_match(mode1, mode2,
4835 DRM_MODE_MATCH_TIMINGS |
4836 DRM_MODE_MATCH_FLAGS |
4837 DRM_MODE_MATCH_3D_FLAGS) &&
4838 mode1->clock == mode2->clock; /* we want an exact match */
4839 }
4840
4841 static bool m_n_equal(const struct intel_link_m_n *m_n_1,
4842 const struct intel_link_m_n *m_n_2)
4843 {
4844 return m_n_1->tu == m_n_2->tu &&
4845 m_n_1->gmch_m == m_n_2->gmch_m &&
4846 m_n_1->gmch_n == m_n_2->gmch_n &&
4847 m_n_1->link_m == m_n_2->link_m &&
4848 m_n_1->link_n == m_n_2->link_n;
4849 }
4850
4851 static bool crtcs_port_sync_compatible(const struct intel_crtc_state *crtc_state1,
4852 const struct intel_crtc_state *crtc_state2)
4853 {
4854 return crtc_state1->hw.active && crtc_state2->hw.active &&
4855 crtc_state1->output_types == crtc_state2->output_types &&
4856 crtc_state1->output_format == crtc_state2->output_format &&
4857 crtc_state1->lane_count == crtc_state2->lane_count &&
4858 crtc_state1->port_clock == crtc_state2->port_clock &&
4859 mode_equal(&crtc_state1->hw.adjusted_mode,
4860 &crtc_state2->hw.adjusted_mode) &&
4861 m_n_equal(&crtc_state1->dp_m_n, &crtc_state2->dp_m_n);
4862 }
4863
4864 static u8
4865 intel_ddi_port_sync_transcoders(const struct intel_crtc_state *ref_crtc_state,
4866 int tile_group_id)
4867 {
4868 struct drm_connector *connector;
4869 const struct drm_connector_state *conn_state;
4870 struct drm_i915_private *dev_priv = to_i915(ref_crtc_state->uapi.crtc->dev);
4871 struct intel_atomic_state *state =
4872 to_intel_atomic_state(ref_crtc_state->uapi.state);
4873 u8 transcoders = 0;
4874 int i;
4875
4876 /*
4877 * We don't enable port sync on BDW due to missing w/as and
4878 * due to not having adjusted the modeset sequence appropriately.
4879 */
4880 if (INTEL_GEN(dev_priv) < 9)
4881 return 0;
4882
4883 if (!intel_crtc_has_type(ref_crtc_state, INTEL_OUTPUT_DP))
4884 return 0;
4885
4886 for_each_new_connector_in_state(&state->base, connector, conn_state, i) {
4887 struct intel_crtc *crtc = to_intel_crtc(conn_state->crtc);
4888 const struct intel_crtc_state *crtc_state;
4889
4890 if (!crtc)
4891 continue;
4892
4893 if (!connector->has_tile ||
4894 connector->tile_group->id !=
4895 tile_group_id)
4896 continue;
4897 crtc_state = intel_atomic_get_new_crtc_state(state,
4898 crtc);
4899 if (!crtcs_port_sync_compatible(ref_crtc_state,
4900 crtc_state))
4901 continue;
4902 transcoders |= BIT(crtc_state->cpu_transcoder);
4903 }
4904
4905 return transcoders;
4906 }
4907
4908 static int intel_ddi_compute_config_late(struct intel_encoder *encoder,
4909 struct intel_crtc_state *crtc_state,
4910 struct drm_connector_state *conn_state)
4911 {
4912 struct drm_i915_private *i915 = to_i915(encoder->base.dev);
4913 struct drm_connector *connector = conn_state->connector;
4914 u8 port_sync_transcoders = 0;
4915
4916 drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] [CRTC:%d:%s]",
4917 encoder->base.base.id, encoder->base.name,
4918 crtc_state->uapi.crtc->base.id, crtc_state->uapi.crtc->name);
4919
4920 if (connector->has_tile)
4921 port_sync_transcoders = intel_ddi_port_sync_transcoders(crtc_state,
4922 connector->tile_group->id);
4923
4924 /*
4925 * EDP Transcoders cannot be ensalved
4926 * make them a master always when present
4927 */
4928 if (port_sync_transcoders & BIT(TRANSCODER_EDP))
4929 crtc_state->master_transcoder = TRANSCODER_EDP;
4930 else
4931 crtc_state->master_transcoder = ffs(port_sync_transcoders) - 1;
4932
4933 if (crtc_state->master_transcoder == crtc_state->cpu_transcoder) {
4934 crtc_state->master_transcoder = INVALID_TRANSCODER;
4935 crtc_state->sync_mode_slaves_mask =
4936 port_sync_transcoders & ~BIT(crtc_state->cpu_transcoder);
4937 }
4938
4939 return 0;
4940 }
4941
4942 static void intel_ddi_encoder_destroy(struct drm_encoder *encoder)
4943 {
4944 struct intel_digital_port *dig_port = enc_to_dig_port(to_intel_encoder(encoder));
4945
4946 intel_dp_encoder_flush_work(encoder);
4947
4948 drm_encoder_cleanup(encoder);
4949 kfree(dig_port);
4950 }
4951
4952 static const struct drm_encoder_funcs intel_ddi_funcs = {
4953 .reset = intel_dp_encoder_reset,
4954 .destroy = intel_ddi_encoder_destroy,
4955 };
4956
4957 static struct intel_connector *
4958 intel_ddi_init_dp_connector(struct intel_digital_port *dig_port)
4959 {
4960 struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
4961 struct intel_connector *connector;
4962 enum port port = dig_port->base.port;
4963
4964 connector = intel_connector_alloc();
4965 if (!connector)
4966 return NULL;
4967
4968 dig_port->dp.output_reg = DDI_BUF_CTL(port);
4969 dig_port->dp.prepare_link_retrain = intel_ddi_prepare_link_retrain;
4970 dig_port->dp.set_link_train = intel_ddi_set_link_train;
4971 dig_port->dp.set_idle_link_train = intel_ddi_set_idle_link_train;
4972
4973 if (INTEL_GEN(dev_priv) >= 12)
4974 dig_port->dp.set_signal_levels = tgl_set_signal_levels;
4975 else if (INTEL_GEN(dev_priv) >= 11)
4976 dig_port->dp.set_signal_levels = icl_set_signal_levels;
4977 else if (IS_CANNONLAKE(dev_priv))
4978 dig_port->dp.set_signal_levels = cnl_set_signal_levels;
4979 else if (IS_GEN9_LP(dev_priv))
4980 dig_port->dp.set_signal_levels = bxt_set_signal_levels;
4981 else
4982 dig_port->dp.set_signal_levels = hsw_set_signal_levels;
4983
4984 dig_port->dp.voltage_max = intel_ddi_dp_voltage_max;
4985 dig_port->dp.preemph_max = intel_ddi_dp_preemph_max;
4986
4987 if (!intel_dp_init_connector(dig_port, connector)) {
4988 kfree(connector);
4989 return NULL;
4990 }
4991
4992 return connector;
4993 }
4994
4995 static int modeset_pipe(struct drm_crtc *crtc,
4996 struct drm_modeset_acquire_ctx *ctx)
4997 {
4998 struct drm_atomic_state *state;
4999 struct drm_crtc_state *crtc_state;
5000 int ret;
5001
5002 state = drm_atomic_state_alloc(crtc->dev);
5003 if (!state)
5004 return -ENOMEM;
5005
5006 state->acquire_ctx = ctx;
5007
5008 crtc_state = drm_atomic_get_crtc_state(state, crtc);
5009 if (IS_ERR(crtc_state)) {
5010 ret = PTR_ERR(crtc_state);
5011 goto out;
5012 }
5013
5014 crtc_state->connectors_changed = true;
5015
5016 ret = drm_atomic_commit(state);
5017 out:
5018 drm_atomic_state_put(state);
5019
5020 return ret;
5021 }
5022
5023 static int intel_hdmi_reset_link(struct intel_encoder *encoder,
5024 struct drm_modeset_acquire_ctx *ctx)
5025 {
5026 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
5027 struct intel_hdmi *hdmi = enc_to_intel_hdmi(encoder);
5028 struct intel_connector *connector = hdmi->attached_connector;
5029 struct i2c_adapter *adapter =
5030 intel_gmbus_get_adapter(dev_priv, hdmi->ddc_bus);
5031 struct drm_connector_state *conn_state;
5032 struct intel_crtc_state *crtc_state;
5033 struct intel_crtc *crtc;
5034 u8 config;
5035 int ret;
5036
5037 if (!connector || connector->base.status != connector_status_connected)
5038 return 0;
5039
5040 ret = drm_modeset_lock(&dev_priv->drm.mode_config.connection_mutex,
5041 ctx);
5042 if (ret)
5043 return ret;
5044
5045 conn_state = connector->base.state;
5046
5047 crtc = to_intel_crtc(conn_state->crtc);
5048 if (!crtc)
5049 return 0;
5050
5051 ret = drm_modeset_lock(&crtc->base.mutex, ctx);
5052 if (ret)
5053 return ret;
5054
5055 crtc_state = to_intel_crtc_state(crtc->base.state);
5056
5057 drm_WARN_ON(&dev_priv->drm,
5058 !intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI));
5059
5060 if (!crtc_state->hw.active)
5061 return 0;
5062
5063 if (!crtc_state->hdmi_high_tmds_clock_ratio &&
5064 !crtc_state->hdmi_scrambling)
5065 return 0;
5066
5067 if (conn_state->commit &&
5068 !try_wait_for_completion(&conn_state->commit->hw_done))
5069 return 0;
5070
5071 ret = drm_scdc_readb(adapter, SCDC_TMDS_CONFIG, &config);
5072 if (ret < 0) {
5073 drm_err(&dev_priv->drm, "Failed to read TMDS config: %d\n",
5074 ret);
5075 return 0;
5076 }
5077
5078 if (!!(config & SCDC_TMDS_BIT_CLOCK_RATIO_BY_40) ==
5079 crtc_state->hdmi_high_tmds_clock_ratio &&
5080 !!(config & SCDC_SCRAMBLING_ENABLE) ==
5081 crtc_state->hdmi_scrambling)
5082 return 0;
5083
5084 /*
5085 * HDMI 2.0 says that one should not send scrambled data
5086 * prior to configuring the sink scrambling, and that
5087 * TMDS clock/data transmission should be suspended when
5088 * changing the TMDS clock rate in the sink. So let's
5089 * just do a full modeset here, even though some sinks
5090 * would be perfectly happy if were to just reconfigure
5091 * the SCDC settings on the fly.
5092 */
5093 return modeset_pipe(&crtc->base, ctx);
5094 }
5095
5096 static enum intel_hotplug_state
5097 intel_ddi_hotplug(struct intel_encoder *encoder,
5098 struct intel_connector *connector)
5099 {
5100 struct drm_i915_private *i915 = to_i915(encoder->base.dev);
5101 struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
5102 enum phy phy = intel_port_to_phy(i915, encoder->port);
5103 bool is_tc = intel_phy_is_tc(i915, phy);
5104 struct drm_modeset_acquire_ctx ctx;
5105 enum intel_hotplug_state state;
5106 int ret;
5107
5108 state = intel_encoder_hotplug(encoder, connector);
5109
5110 drm_modeset_acquire_init(&ctx, 0);
5111
5112 for (;;) {
5113 if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
5114 ret = intel_hdmi_reset_link(encoder, &ctx);
5115 else
5116 ret = intel_dp_retrain_link(encoder, &ctx);
5117
5118 if (ret == -EDEADLK) {
5119 drm_modeset_backoff(&ctx);
5120 continue;
5121 }
5122
5123 break;
5124 }
5125
5126 drm_modeset_drop_locks(&ctx);
5127 drm_modeset_acquire_fini(&ctx);
5128 drm_WARN(encoder->base.dev, ret,
5129 "Acquiring modeset locks failed with %i\n", ret);
5130
5131 /*
5132 * Unpowered type-c dongles can take some time to boot and be
5133 * responsible, so here giving some time to those dongles to power up
5134 * and then retrying the probe.
5135 *
5136 * On many platforms the HDMI live state signal is known to be
5137 * unreliable, so we can't use it to detect if a sink is connected or
5138 * not. Instead we detect if it's connected based on whether we can
5139 * read the EDID or not. That in turn has a problem during disconnect,
5140 * since the HPD interrupt may be raised before the DDC lines get
5141 * disconnected (due to how the required length of DDC vs. HPD
5142 * connector pins are specified) and so we'll still be able to get a
5143 * valid EDID. To solve this schedule another detection cycle if this
5144 * time around we didn't detect any change in the sink's connection
5145 * status.
5146 *
5147 * Type-c connectors which get their HPD signal deasserted then
5148 * reasserted, without unplugging/replugging the sink from the
5149 * connector, introduce a delay until the AUX channel communication
5150 * becomes functional. Retry the detection for 5 seconds on type-c
5151 * connectors to account for this delay.
5152 */
5153 if (state == INTEL_HOTPLUG_UNCHANGED &&
5154 connector->hotplug_retries < (is_tc ? 5 : 1) &&
5155 !dig_port->dp.is_mst)
5156 state = INTEL_HOTPLUG_RETRY;
5157
5158 return state;
5159 }
5160
5161 static bool lpt_digital_port_connected(struct intel_encoder *encoder)
5162 {
5163 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
5164 u32 bit = dev_priv->hotplug.pch_hpd[encoder->hpd_pin];
5165
5166 return intel_de_read(dev_priv, SDEISR) & bit;
5167 }
5168
5169 static bool hsw_digital_port_connected(struct intel_encoder *encoder)
5170 {
5171 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
5172 u32 bit = dev_priv->hotplug.hpd[encoder->hpd_pin];
5173
5174 return intel_de_read(dev_priv, DEISR) & bit;
5175 }
5176
5177 static bool bdw_digital_port_connected(struct intel_encoder *encoder)
5178 {
5179 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
5180 u32 bit = dev_priv->hotplug.hpd[encoder->hpd_pin];
5181
5182 return intel_de_read(dev_priv, GEN8_DE_PORT_ISR) & bit;
5183 }
5184
5185 static struct intel_connector *
5186 intel_ddi_init_hdmi_connector(struct intel_digital_port *dig_port)
5187 {
5188 struct intel_connector *connector;
5189 enum port port = dig_port->base.port;
5190
5191 connector = intel_connector_alloc();
5192 if (!connector)
5193 return NULL;
5194
5195 dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port);
5196 intel_hdmi_init_connector(dig_port, connector);
5197
5198 return connector;
5199 }
5200
5201 static bool intel_ddi_a_force_4_lanes(struct intel_digital_port *dig_port)
5202 {
5203 struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
5204
5205 if (dig_port->base.port != PORT_A)
5206 return false;
5207
5208 if (dig_port->saved_port_bits & DDI_A_4_LANES)
5209 return false;
5210
5211 /* Broxton/Geminilake: Bspec says that DDI_A_4_LANES is the only
5212 * supported configuration
5213 */
5214 if (IS_GEN9_LP(dev_priv))
5215 return true;
5216
5217 /* Cannonlake: Most of SKUs don't support DDI_E, and the only
5218 * one who does also have a full A/E split called
5219 * DDI_F what makes DDI_E useless. However for this
5220 * case let's trust VBT info.
5221 */
5222 if (IS_CANNONLAKE(dev_priv) &&
5223 !intel_bios_is_port_present(dev_priv, PORT_E))
5224 return true;
5225
5226 return false;
5227 }
5228
5229 static int
5230 intel_ddi_max_lanes(struct intel_digital_port *dig_port)
5231 {
5232 struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
5233 enum port port = dig_port->base.port;
5234 int max_lanes = 4;
5235
5236 if (INTEL_GEN(dev_priv) >= 11)
5237 return max_lanes;
5238
5239 if (port == PORT_A || port == PORT_E) {
5240 if (intel_de_read(dev_priv, DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)
5241 max_lanes = port == PORT_A ? 4 : 0;
5242 else
5243 /* Both A and E share 2 lanes */
5244 max_lanes = 2;
5245 }
5246
5247 /*
5248 * Some BIOS might fail to set this bit on port A if eDP
5249 * wasn't lit up at boot. Force this bit set when needed
5250 * so we use the proper lane count for our calculations.
5251 */
5252 if (intel_ddi_a_force_4_lanes(dig_port)) {
5253 drm_dbg_kms(&dev_priv->drm,
5254 "Forcing DDI_A_4_LANES for port A\n");
5255 dig_port->saved_port_bits |= DDI_A_4_LANES;
5256 max_lanes = 4;
5257 }
5258
5259 return max_lanes;
5260 }
5261
5262 static bool hti_uses_phy(struct drm_i915_private *i915, enum phy phy)
5263 {
5264 return i915->hti_state & HDPORT_ENABLED &&
5265 (i915->hti_state & HDPORT_PHY_USED_DP(phy) ||
5266 i915->hti_state & HDPORT_PHY_USED_HDMI(phy));
5267 }
5268
5269 static enum hpd_pin dg1_hpd_pin(struct drm_i915_private *dev_priv,
5270 enum port port)
5271 {
5272 if (port >= PORT_TC1)
5273 return HPD_PORT_C + port - PORT_TC1;
5274 else
5275 return HPD_PORT_A + port - PORT_A;
5276 }
5277
5278 static enum hpd_pin tgl_hpd_pin(struct drm_i915_private *dev_priv,
5279 enum port port)
5280 {
5281 if (port >= PORT_TC1)
5282 return HPD_PORT_TC1 + port - PORT_TC1;
5283 else
5284 return HPD_PORT_A + port - PORT_A;
5285 }
5286
5287 static enum hpd_pin rkl_hpd_pin(struct drm_i915_private *dev_priv,
5288 enum port port)
5289 {
5290 if (HAS_PCH_TGP(dev_priv))
5291 return tgl_hpd_pin(dev_priv, port);
5292
5293 if (port >= PORT_TC1)
5294 return HPD_PORT_C + port - PORT_TC1;
5295 else
5296 return HPD_PORT_A + port - PORT_A;
5297 }
5298
5299 static enum hpd_pin icl_hpd_pin(struct drm_i915_private *dev_priv,
5300 enum port port)
5301 {
5302 if (port >= PORT_C)
5303 return HPD_PORT_TC1 + port - PORT_C;
5304 else
5305 return HPD_PORT_A + port - PORT_A;
5306 }
5307
5308 static enum hpd_pin ehl_hpd_pin(struct drm_i915_private *dev_priv,
5309 enum port port)
5310 {
5311 if (port == PORT_D)
5312 return HPD_PORT_A;
5313
5314 if (HAS_PCH_MCC(dev_priv))
5315 return icl_hpd_pin(dev_priv, port);
5316
5317 return HPD_PORT_A + port - PORT_A;
5318 }
5319
5320 static enum hpd_pin cnl_hpd_pin(struct drm_i915_private *dev_priv,
5321 enum port port)
5322 {
5323 if (port == PORT_F)
5324 return HPD_PORT_E;
5325
5326 return HPD_PORT_A + port - PORT_A;
5327 }
5328
5329 #define port_tc_name(port) ((port) - PORT_TC1 + '1')
5330 #define tc_port_name(tc_port) ((tc_port) - TC_PORT_1 + '1')
5331
5332 void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
5333 {
5334 struct intel_digital_port *dig_port;
5335 struct intel_encoder *encoder;
5336 bool init_hdmi, init_dp;
5337 enum phy phy = intel_port_to_phy(dev_priv, port);
5338
5339 /*
5340 * On platforms with HTI (aka HDPORT), if it's enabled at boot it may
5341 * have taken over some of the PHYs and made them unavailable to the
5342 * driver. In that case we should skip initializing the corresponding
5343 * outputs.
5344 */
5345 if (hti_uses_phy(dev_priv, phy)) {
5346 drm_dbg_kms(&dev_priv->drm, "PORT %c / PHY %c reserved by HTI\n",
5347 port_name(port), phy_name(phy));
5348 return;
5349 }
5350
5351 init_hdmi = intel_bios_port_supports_dvi(dev_priv, port) ||
5352 intel_bios_port_supports_hdmi(dev_priv, port);
5353 init_dp = intel_bios_port_supports_dp(dev_priv, port);
5354
5355 if (intel_bios_is_lspcon_present(dev_priv, port)) {
5356 /*
5357 * Lspcon device needs to be driven with DP connector
5358 * with special detection sequence. So make sure DP
5359 * is initialized before lspcon.
5360 */
5361 init_dp = true;
5362 init_hdmi = false;
5363 drm_dbg_kms(&dev_priv->drm, "VBT says port %c has lspcon\n",
5364 port_name(port));
5365 }
5366
5367 if (!init_dp && !init_hdmi) {
5368 drm_dbg_kms(&dev_priv->drm,
5369 "VBT says port %c is not DVI/HDMI/DP compatible, respect it\n",
5370 port_name(port));
5371 return;
5372 }
5373
5374 dig_port = kzalloc(sizeof(*dig_port), GFP_KERNEL);
5375 if (!dig_port)
5376 return;
5377
5378 encoder = &dig_port->base;
5379
5380 if (INTEL_GEN(dev_priv) >= 12) {
5381 enum tc_port tc_port = intel_port_to_tc(dev_priv, port);
5382
5383 drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs,
5384 DRM_MODE_ENCODER_TMDS,
5385 "DDI %s%c/PHY %s%c",
5386 port >= PORT_TC1 ? "TC" : "",
5387 port >= PORT_TC1 ? port_tc_name(port) : port_name(port),
5388 tc_port != TC_PORT_NONE ? "TC" : "",
5389 tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy));
5390 } else if (INTEL_GEN(dev_priv) >= 11) {
5391 enum tc_port tc_port = intel_port_to_tc(dev_priv, port);
5392
5393 drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs,
5394 DRM_MODE_ENCODER_TMDS,
5395 "DDI %c%s/PHY %s%c",
5396 port_name(port),
5397 port >= PORT_C ? " (TC)" : "",
5398 tc_port != TC_PORT_NONE ? "TC" : "",
5399 tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy));
5400 } else {
5401 drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs,
5402 DRM_MODE_ENCODER_TMDS,
5403 "DDI %c/PHY %c", port_name(port), phy_name(phy));
5404 }
5405
5406 mutex_init(&dig_port->hdcp_mutex);
5407 dig_port->num_hdcp_streams = 0;
5408
5409 encoder->hotplug = intel_ddi_hotplug;
5410 encoder->compute_output_type = intel_ddi_compute_output_type;
5411 encoder->compute_config = intel_ddi_compute_config;
5412 encoder->compute_config_late = intel_ddi_compute_config_late;
5413 encoder->enable = intel_enable_ddi;
5414 encoder->pre_pll_enable = intel_ddi_pre_pll_enable;
5415 encoder->pre_enable = intel_ddi_pre_enable;
5416 encoder->disable = intel_disable_ddi;
5417 encoder->post_disable = intel_ddi_post_disable;
5418 encoder->update_pipe = intel_ddi_update_pipe;
5419 encoder->get_hw_state = intel_ddi_get_hw_state;
5420 encoder->get_config = intel_ddi_get_config;
5421 encoder->sync_state = intel_ddi_sync_state;
5422 encoder->initial_fastset_check = intel_ddi_initial_fastset_check;
5423 encoder->suspend = intel_dp_encoder_suspend;
5424 encoder->shutdown = intel_dp_encoder_shutdown;
5425 encoder->get_power_domains = intel_ddi_get_power_domains;
5426
5427 encoder->type = INTEL_OUTPUT_DDI;
5428 encoder->power_domain = intel_port_to_power_domain(port);
5429 encoder->port = port;
5430 encoder->cloneable = 0;
5431 encoder->pipe_mask = ~0;
5432
5433 if (IS_DG1(dev_priv))
5434 encoder->hpd_pin = dg1_hpd_pin(dev_priv, port);
5435 else if (IS_ROCKETLAKE(dev_priv))
5436 encoder->hpd_pin = rkl_hpd_pin(dev_priv, port);
5437 else if (INTEL_GEN(dev_priv) >= 12)
5438 encoder->hpd_pin = tgl_hpd_pin(dev_priv, port);
5439 else if (IS_JSL_EHL(dev_priv))
5440 encoder->hpd_pin = ehl_hpd_pin(dev_priv, port);
5441 else if (IS_GEN(dev_priv, 11))
5442 encoder->hpd_pin = icl_hpd_pin(dev_priv, port);
5443 else if (IS_GEN(dev_priv, 10))
5444 encoder->hpd_pin = cnl_hpd_pin(dev_priv, port);
5445 else
5446 encoder->hpd_pin = intel_hpd_pin_default(dev_priv, port);
5447
5448 if (INTEL_GEN(dev_priv) >= 11)
5449 dig_port->saved_port_bits =
5450 intel_de_read(dev_priv, DDI_BUF_CTL(port))
5451 & DDI_BUF_PORT_REVERSAL;
5452 else
5453 dig_port->saved_port_bits =
5454 intel_de_read(dev_priv, DDI_BUF_CTL(port))
5455 & (DDI_BUF_PORT_REVERSAL | DDI_A_4_LANES);
5456
5457 dig_port->dp.output_reg = INVALID_MMIO_REG;
5458 dig_port->max_lanes = intel_ddi_max_lanes(dig_port);
5459 dig_port->aux_ch = intel_bios_port_aux_ch(dev_priv, port);
5460
5461 if (intel_phy_is_tc(dev_priv, phy)) {
5462 bool is_legacy =
5463 !intel_bios_port_supports_typec_usb(dev_priv, port) &&
5464 !intel_bios_port_supports_tbt(dev_priv, port);
5465
5466 intel_tc_port_init(dig_port, is_legacy);
5467
5468 encoder->update_prepare = intel_ddi_update_prepare;
5469 encoder->update_complete = intel_ddi_update_complete;
5470 }
5471
5472 drm_WARN_ON(&dev_priv->drm, port > PORT_I);
5473 dig_port->ddi_io_power_domain = POWER_DOMAIN_PORT_DDI_A_IO +
5474 port - PORT_A;
5475
5476 if (init_dp) {
5477 if (!intel_ddi_init_dp_connector(dig_port))
5478 goto err;
5479
5480 dig_port->hpd_pulse = intel_dp_hpd_pulse;
5481 }
5482
5483 /* In theory we don't need the encoder->type check, but leave it just in
5484 * case we have some really bad VBTs... */
5485 if (encoder->type != INTEL_OUTPUT_EDP && init_hdmi) {
5486 if (!intel_ddi_init_hdmi_connector(dig_port))
5487 goto err;
5488 }
5489
5490 if (INTEL_GEN(dev_priv) >= 11) {
5491 if (intel_phy_is_tc(dev_priv, phy))
5492 dig_port->connected = intel_tc_port_connected;
5493 else
5494 dig_port->connected = lpt_digital_port_connected;
5495 } else if (INTEL_GEN(dev_priv) >= 8) {
5496 if (port == PORT_A || IS_GEN9_LP(dev_priv))
5497 dig_port->connected = bdw_digital_port_connected;
5498 else
5499 dig_port->connected = lpt_digital_port_connected;
5500 } else {
5501 if (port == PORT_A)
5502 dig_port->connected = hsw_digital_port_connected;
5503 else
5504 dig_port->connected = lpt_digital_port_connected;
5505 }
5506
5507 intel_infoframe_init(dig_port);
5508
5509 return;
5510
5511 err:
5512 drm_encoder_cleanup(&encoder->base);
5513 kfree(dig_port);
5514 }
Linux with added FPC-III support