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WIP FPC-III support
[linux/fpc-iii.git] / drivers / gpu / drm / exynos / exynos_hdmi.c
blob39fa5d3b01ef9d7e6acd0b54b94476b76baf51cb
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2011 Samsung Electronics Co.Ltd
4 * Authors:
5 * Seung-Woo Kim <sw0312.kim@samsung.com>
6 * Inki Dae <inki.dae@samsung.com>
7 * Joonyoung Shim <jy0922.shim@samsung.com>
8 *
9 * Based on drivers/media/video/s5p-tv/hdmi_drv.c
10 */
11
12 #include <drm/exynos_drm.h>
13 #include <linux/clk.h>
14 #include <linux/component.h>
15 #include <linux/delay.h>
16 #include <linux/gpio/consumer.h>
17 #include <linux/hdmi.h>
18 #include <linux/i2c.h>
19 #include <linux/interrupt.h>
20 #include <linux/io.h>
21 #include <linux/irq.h>
22 #include <linux/kernel.h>
23 #include <linux/mfd/syscon.h>
24 #include <linux/of_address.h>
25 #include <linux/of_device.h>
26 #include <linux/of_graph.h>
27 #include <linux/platform_device.h>
28 #include <linux/pm_runtime.h>
29 #include <linux/regmap.h>
30 #include <linux/regulator/consumer.h>
31 #include <linux/wait.h>
32
33 #include <sound/hdmi-codec.h>
34 #include <media/cec-notifier.h>
35
36 #include <drm/drm_atomic_helper.h>
37 #include <drm/drm_bridge.h>
38 #include <drm/drm_edid.h>
39 #include <drm/drm_print.h>
40 #include <drm/drm_probe_helper.h>
41 #include <drm/drm_simple_kms_helper.h>
42
43 #include "exynos_drm_crtc.h"
44 #include "regs-hdmi.h"
45
46 #define HOTPLUG_DEBOUNCE_MS 1100
47
48 enum hdmi_type {
49 HDMI_TYPE13,
50 HDMI_TYPE14,
51 HDMI_TYPE_COUNT
52 };
53
54 #define HDMI_MAPPED_BASE 0xffff0000
55
56 enum hdmi_mapped_regs {
57 HDMI_PHY_STATUS = HDMI_MAPPED_BASE,
58 HDMI_PHY_RSTOUT,
59 HDMI_ACR_CON,
60 HDMI_ACR_MCTS0,
61 HDMI_ACR_CTS0,
62 HDMI_ACR_N0
63 };
64
65 static const u32 hdmi_reg_map[][HDMI_TYPE_COUNT] = {
66 { HDMI_V13_PHY_STATUS, HDMI_PHY_STATUS_0 },
67 { HDMI_V13_PHY_RSTOUT, HDMI_V14_PHY_RSTOUT },
68 { HDMI_V13_ACR_CON, HDMI_V14_ACR_CON },
69 { HDMI_V13_ACR_MCTS0, HDMI_V14_ACR_MCTS0 },
70 { HDMI_V13_ACR_CTS0, HDMI_V14_ACR_CTS0 },
71 { HDMI_V13_ACR_N0, HDMI_V14_ACR_N0 },
72 };
73
74 static const char * const supply[] = {
75 "vdd",
76 "vdd_osc",
77 "vdd_pll",
78 };
79
80 struct hdmiphy_config {
81 int pixel_clock;
82 u8 conf[32];
83 };
84
85 struct hdmiphy_configs {
86 int count;
87 const struct hdmiphy_config *data;
88 };
89
90 struct string_array_spec {
91 int count;
92 const char * const *data;
93 };
94
95 #define INIT_ARRAY_SPEC(a) { .count = ARRAY_SIZE(a), .data = a }
96
97 struct hdmi_driver_data {
98 unsigned int type;
99 unsigned int is_apb_phy:1;
100 unsigned int has_sysreg:1;
101 struct hdmiphy_configs phy_confs;
102 struct string_array_spec clk_gates;
103 /*
104 * Array of triplets (p_off, p_on, clock), where p_off and p_on are
105 * required parents of clock when HDMI-PHY is respectively off or on.
106 */
107 struct string_array_spec clk_muxes;
108 };
109
110 struct hdmi_audio {
111 struct platform_device *pdev;
112 struct hdmi_audio_infoframe infoframe;
113 struct hdmi_codec_params params;
114 bool mute;
115 };
116
117 struct hdmi_context {
118 struct drm_encoder encoder;
119 struct device *dev;
120 struct drm_device *drm_dev;
121 struct drm_connector connector;
122 bool dvi_mode;
123 struct delayed_work hotplug_work;
124 struct cec_notifier *notifier;
125 const struct hdmi_driver_data *drv_data;
126
127 void __iomem *regs;
128 void __iomem *regs_hdmiphy;
129 struct i2c_client *hdmiphy_port;
130 struct i2c_adapter *ddc_adpt;
131 struct gpio_desc *hpd_gpio;
132 int irq;
133 struct regmap *pmureg;
134 struct regmap *sysreg;
135 struct clk **clk_gates;
136 struct clk **clk_muxes;
137 struct regulator_bulk_data regul_bulk[ARRAY_SIZE(supply)];
138 struct regulator *reg_hdmi_en;
139 struct exynos_drm_clk phy_clk;
140 struct drm_bridge *bridge;
141
142 /* mutex protecting subsequent fields below */
143 struct mutex mutex;
144 struct hdmi_audio audio;
145 bool powered;
146 };
147
148 static inline struct hdmi_context *encoder_to_hdmi(struct drm_encoder *e)
149 {
150 return container_of(e, struct hdmi_context, encoder);
151 }
152
153 static inline struct hdmi_context *connector_to_hdmi(struct drm_connector *c)
154 {
155 return container_of(c, struct hdmi_context, connector);
156 }
157
158 static const struct hdmiphy_config hdmiphy_v13_configs[] = {
159 {
160 .pixel_clock = 27000000,
161 .conf = {
162 0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40,
163 0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
164 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
165 0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x80,
166 },
167 },
168 {
169 .pixel_clock = 27027000,
170 .conf = {
171 0x01, 0x05, 0x00, 0xD4, 0x10, 0x9C, 0x09, 0x64,
172 0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
173 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
174 0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x80,
175 },
176 },
177 {
178 .pixel_clock = 74176000,
179 .conf = {
180 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xef, 0x5B,
181 0x6D, 0x10, 0x01, 0x51, 0xef, 0xF3, 0x54, 0xb9,
182 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
183 0x22, 0x40, 0xa5, 0x26, 0x01, 0x00, 0x00, 0x80,
184 },
185 },
186 {
187 .pixel_clock = 74250000,
188 .conf = {
189 0x01, 0x05, 0x00, 0xd8, 0x10, 0x9c, 0xf8, 0x40,
190 0x6a, 0x10, 0x01, 0x51, 0xff, 0xf1, 0x54, 0xba,
191 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xe0,
192 0x22, 0x40, 0xa4, 0x26, 0x01, 0x00, 0x00, 0x80,
193 },
194 },
195 {
196 .pixel_clock = 148500000,
197 .conf = {
198 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xf8, 0x40,
199 0x6A, 0x18, 0x00, 0x51, 0xff, 0xF1, 0x54, 0xba,
200 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
201 0x22, 0x40, 0xa4, 0x26, 0x02, 0x00, 0x00, 0x80,
202 },
203 },
204 };
205
206 static const struct hdmiphy_config hdmiphy_v14_configs[] = {
207 {
208 .pixel_clock = 25200000,
209 .conf = {
210 0x01, 0x51, 0x2A, 0x75, 0x40, 0x01, 0x00, 0x08,
211 0x82, 0x80, 0xfc, 0xd8, 0x45, 0xa0, 0xac, 0x80,
212 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
213 0x54, 0xf4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
214 },
215 },
216 {
217 .pixel_clock = 27000000,
218 .conf = {
219 0x01, 0xd1, 0x22, 0x51, 0x40, 0x08, 0xfc, 0x20,
220 0x98, 0xa0, 0xcb, 0xd8, 0x45, 0xa0, 0xac, 0x80,
221 0x06, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
222 0x54, 0xe4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
223 },
224 },
225 {
226 .pixel_clock = 27027000,
227 .conf = {
228 0x01, 0xd1, 0x2d, 0x72, 0x40, 0x64, 0x12, 0x08,
229 0x43, 0xa0, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
230 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
231 0x54, 0xe3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
232 },
233 },
234 {
235 .pixel_clock = 36000000,
236 .conf = {
237 0x01, 0x51, 0x2d, 0x55, 0x40, 0x01, 0x00, 0x08,
238 0x82, 0x80, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
239 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
240 0x54, 0xab, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
241 },
242 },
243 {
244 .pixel_clock = 40000000,
245 .conf = {
246 0x01, 0x51, 0x32, 0x55, 0x40, 0x01, 0x00, 0x08,
247 0x82, 0x80, 0x2c, 0xd9, 0x45, 0xa0, 0xac, 0x80,
248 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
249 0x54, 0x9a, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
250 },
251 },
252 {
253 .pixel_clock = 65000000,
254 .conf = {
255 0x01, 0xd1, 0x36, 0x34, 0x40, 0x1e, 0x0a, 0x08,
256 0x82, 0xa0, 0x45, 0xd9, 0x45, 0xa0, 0xac, 0x80,
257 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
258 0x54, 0xbd, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
259 },
260 },
261 {
262 .pixel_clock = 71000000,
263 .conf = {
264 0x01, 0xd1, 0x3b, 0x35, 0x40, 0x0c, 0x04, 0x08,
265 0x85, 0xa0, 0x63, 0xd9, 0x45, 0xa0, 0xac, 0x80,
266 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
267 0x54, 0xad, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
268 },
269 },
270 {
271 .pixel_clock = 73250000,
272 .conf = {
273 0x01, 0xd1, 0x3d, 0x35, 0x40, 0x18, 0x02, 0x08,
274 0x83, 0xa0, 0x6e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
275 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
276 0x54, 0xa8, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
277 },
278 },
279 {
280 .pixel_clock = 74176000,
281 .conf = {
282 0x01, 0xd1, 0x3e, 0x35, 0x40, 0x5b, 0xde, 0x08,
283 0x82, 0xa0, 0x73, 0xd9, 0x45, 0xa0, 0xac, 0x80,
284 0x56, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
285 0x54, 0xa6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
286 },
287 },
288 {
289 .pixel_clock = 74250000,
290 .conf = {
291 0x01, 0xd1, 0x1f, 0x10, 0x40, 0x40, 0xf8, 0x08,
292 0x81, 0xa0, 0xba, 0xd8, 0x45, 0xa0, 0xac, 0x80,
293 0x3c, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
294 0x54, 0xa5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
295 },
296 },
297 {
298 .pixel_clock = 83500000,
299 .conf = {
300 0x01, 0xd1, 0x23, 0x11, 0x40, 0x0c, 0xfb, 0x08,
301 0x85, 0xa0, 0xd1, 0xd8, 0x45, 0xa0, 0xac, 0x80,
302 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
303 0x54, 0x93, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
304 },
305 },
306 {
307 .pixel_clock = 85500000,
308 .conf = {
309 0x01, 0xd1, 0x24, 0x11, 0x40, 0x40, 0xd0, 0x08,
310 0x84, 0xa0, 0xd6, 0xd8, 0x45, 0xa0, 0xac, 0x80,
311 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
312 0x54, 0x90, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
313 },
314 },
315 {
316 .pixel_clock = 106500000,
317 .conf = {
318 0x01, 0xd1, 0x2c, 0x12, 0x40, 0x0c, 0x09, 0x08,
319 0x84, 0xa0, 0x0a, 0xd9, 0x45, 0xa0, 0xac, 0x80,
320 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
321 0x54, 0x73, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
322 },
323 },
324 {
325 .pixel_clock = 108000000,
326 .conf = {
327 0x01, 0x51, 0x2d, 0x15, 0x40, 0x01, 0x00, 0x08,
328 0x82, 0x80, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
329 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
330 0x54, 0xc7, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
331 },
332 },
333 {
334 .pixel_clock = 115500000,
335 .conf = {
336 0x01, 0xd1, 0x30, 0x12, 0x40, 0x40, 0x10, 0x08,
337 0x80, 0x80, 0x21, 0xd9, 0x45, 0xa0, 0xac, 0x80,
338 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
339 0x54, 0xaa, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
340 },
341 },
342 {
343 .pixel_clock = 119000000,
344 .conf = {
345 0x01, 0xd1, 0x32, 0x1a, 0x40, 0x30, 0xd8, 0x08,
346 0x04, 0xa0, 0x2a, 0xd9, 0x45, 0xa0, 0xac, 0x80,
347 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
348 0x54, 0x9d, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
349 },
350 },
351 {
352 .pixel_clock = 146250000,
353 .conf = {
354 0x01, 0xd1, 0x3d, 0x15, 0x40, 0x18, 0xfd, 0x08,
355 0x83, 0xa0, 0x6e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
356 0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
357 0x54, 0x50, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
358 },
359 },
360 {
361 .pixel_clock = 148500000,
362 .conf = {
363 0x01, 0xd1, 0x1f, 0x00, 0x40, 0x40, 0xf8, 0x08,
364 0x81, 0xa0, 0xba, 0xd8, 0x45, 0xa0, 0xac, 0x80,
365 0x3c, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
366 0x54, 0x4b, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
367 },
368 },
369 };
370
371 static const struct hdmiphy_config hdmiphy_5420_configs[] = {
372 {
373 .pixel_clock = 25200000,
374 .conf = {
375 0x01, 0x52, 0x3F, 0x55, 0x40, 0x01, 0x00, 0xC8,
376 0x82, 0xC8, 0xBD, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
377 0x06, 0x80, 0x01, 0x84, 0x05, 0x02, 0x24, 0x66,
378 0x54, 0xF4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
379 },
380 },
381 {
382 .pixel_clock = 27000000,
383 .conf = {
384 0x01, 0xD1, 0x22, 0x51, 0x40, 0x08, 0xFC, 0xE0,
385 0x98, 0xE8, 0xCB, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
386 0x06, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
387 0x54, 0xE4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
388 },
389 },
390 {
391 .pixel_clock = 27027000,
392 .conf = {
393 0x01, 0xD1, 0x2D, 0x72, 0x40, 0x64, 0x12, 0xC8,
394 0x43, 0xE8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
395 0x26, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
396 0x54, 0xE3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
397 },
398 },
399 {
400 .pixel_clock = 36000000,
401 .conf = {
402 0x01, 0x51, 0x2D, 0x55, 0x40, 0x40, 0x00, 0xC8,
403 0x02, 0xC8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
404 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
405 0x54, 0xAB, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
406 },
407 },
408 {
409 .pixel_clock = 40000000,
410 .conf = {
411 0x01, 0xD1, 0x21, 0x31, 0x40, 0x3C, 0x28, 0xC8,
412 0x87, 0xE8, 0xC8, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
413 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
414 0x54, 0x9A, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
415 },
416 },
417 {
418 .pixel_clock = 65000000,
419 .conf = {
420 0x01, 0xD1, 0x36, 0x34, 0x40, 0x0C, 0x04, 0xC8,
421 0x82, 0xE8, 0x45, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
422 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
423 0x54, 0xBD, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
424 },
425 },
426 {
427 .pixel_clock = 71000000,
428 .conf = {
429 0x01, 0xD1, 0x3B, 0x35, 0x40, 0x0C, 0x04, 0xC8,
430 0x85, 0xE8, 0x63, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
431 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
432 0x54, 0x57, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
433 },
434 },
435 {
436 .pixel_clock = 73250000,
437 .conf = {
438 0x01, 0xD1, 0x1F, 0x10, 0x40, 0x78, 0x8D, 0xC8,
439 0x81, 0xE8, 0xB7, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
440 0x56, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
441 0x54, 0xA8, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
442 },
443 },
444 {
445 .pixel_clock = 74176000,
446 .conf = {
447 0x01, 0xD1, 0x1F, 0x10, 0x40, 0x5B, 0xEF, 0xC8,
448 0x81, 0xE8, 0xB9, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
449 0x56, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
450 0x54, 0xA6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
451 },
452 },
453 {
454 .pixel_clock = 74250000,
455 .conf = {
456 0x01, 0xD1, 0x1F, 0x10, 0x40, 0x40, 0xF8, 0x08,
457 0x81, 0xE8, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
458 0x26, 0x80, 0x09, 0x84, 0x05, 0x22, 0x24, 0x66,
459 0x54, 0xA5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
460 },
461 },
462 {
463 .pixel_clock = 83500000,
464 .conf = {
465 0x01, 0xD1, 0x23, 0x11, 0x40, 0x0C, 0xFB, 0xC8,
466 0x85, 0xE8, 0xD1, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
467 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
468 0x54, 0x4A, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
469 },
470 },
471 {
472 .pixel_clock = 88750000,
473 .conf = {
474 0x01, 0xD1, 0x25, 0x11, 0x40, 0x18, 0xFF, 0xC8,
475 0x83, 0xE8, 0xDE, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
476 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
477 0x54, 0x45, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
478 },
479 },
480 {
481 .pixel_clock = 106500000,
482 .conf = {
483 0x01, 0xD1, 0x2C, 0x12, 0x40, 0x0C, 0x09, 0xC8,
484 0x84, 0xE8, 0x0A, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
485 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
486 0x54, 0x73, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
487 },
488 },
489 {
490 .pixel_clock = 108000000,
491 .conf = {
492 0x01, 0x51, 0x2D, 0x15, 0x40, 0x01, 0x00, 0xC8,
493 0x82, 0xC8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
494 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
495 0x54, 0xC7, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
496 },
497 },
498 {
499 .pixel_clock = 115500000,
500 .conf = {
501 0x01, 0xD1, 0x30, 0x14, 0x40, 0x0C, 0x03, 0xC8,
502 0x88, 0xE8, 0x21, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
503 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
504 0x54, 0x6A, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
505 },
506 },
507 {
508 .pixel_clock = 146250000,
509 .conf = {
510 0x01, 0xD1, 0x3D, 0x15, 0x40, 0x18, 0xFD, 0xC8,
511 0x83, 0xE8, 0x6E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
512 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
513 0x54, 0x54, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
514 },
515 },
516 {
517 .pixel_clock = 148500000,
518 .conf = {
519 0x01, 0xD1, 0x1F, 0x00, 0x40, 0x40, 0xF8, 0x08,
520 0x81, 0xE8, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
521 0x26, 0x80, 0x09, 0x84, 0x05, 0x22, 0x24, 0x66,
522 0x54, 0x4B, 0x25, 0x03, 0x00, 0x80, 0x01, 0x80,
523 },
524 },
525 {
526 .pixel_clock = 154000000,
527 .conf = {
528 0x01, 0xD1, 0x20, 0x01, 0x40, 0x30, 0x08, 0xCC,
529 0x8C, 0xE8, 0xC1, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
530 0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x86,
531 0x54, 0x3F, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
532 },
533 },
534 };
535
536 static const struct hdmiphy_config hdmiphy_5433_configs[] = {
537 {
538 .pixel_clock = 27000000,
539 .conf = {
540 0x01, 0x51, 0x2d, 0x75, 0x01, 0x00, 0x88, 0x02,
541 0x72, 0x50, 0x44, 0x8c, 0x27, 0x00, 0x7c, 0xac,
542 0xd6, 0x2b, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
543 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
544 },
545 },
546 {
547 .pixel_clock = 27027000,
548 .conf = {
549 0x01, 0x51, 0x2d, 0x72, 0x64, 0x09, 0x88, 0xc3,
550 0x71, 0x50, 0x44, 0x8c, 0x27, 0x00, 0x7c, 0xac,
551 0xd6, 0x2b, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
552 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
553 },
554 },
555 {
556 .pixel_clock = 40000000,
557 .conf = {
558 0x01, 0x51, 0x32, 0x55, 0x01, 0x00, 0x88, 0x02,
559 0x4d, 0x50, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
560 0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
561 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
562 },
563 },
564 {
565 .pixel_clock = 50000000,
566 .conf = {
567 0x01, 0x51, 0x34, 0x40, 0x64, 0x09, 0x88, 0xc3,
568 0x3d, 0x50, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
569 0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
570 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
571 },
572 },
573 {
574 .pixel_clock = 65000000,
575 .conf = {
576 0x01, 0x51, 0x36, 0x31, 0x40, 0x10, 0x04, 0xc6,
577 0x2e, 0xe8, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
578 0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
579 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
580 },
581 },
582 {
583 .pixel_clock = 74176000,
584 .conf = {
585 0x01, 0x51, 0x3E, 0x35, 0x5B, 0xDE, 0x88, 0x42,
586 0x53, 0x51, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
587 0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
588 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
589 },
590 },
591 {
592 .pixel_clock = 74250000,
593 .conf = {
594 0x01, 0x51, 0x3E, 0x35, 0x40, 0xF0, 0x88, 0xC2,
595 0x52, 0x51, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
596 0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
597 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
598 },
599 },
600 {
601 .pixel_clock = 108000000,
602 .conf = {
603 0x01, 0x51, 0x2d, 0x15, 0x01, 0x00, 0x88, 0x02,
604 0x72, 0x52, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
605 0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
606 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
607 },
608 },
609 {
610 .pixel_clock = 148500000,
611 .conf = {
612 0x01, 0x51, 0x1f, 0x00, 0x40, 0xf8, 0x88, 0xc1,
613 0x52, 0x52, 0x24, 0x0c, 0x24, 0x0f, 0x7c, 0xa5,
614 0xd4, 0x2b, 0x87, 0x00, 0x00, 0x04, 0x00, 0x30,
615 0x08, 0x10, 0x01, 0x01, 0x48, 0x4a, 0x00, 0x40,
616 },
617 },
618 {
619 .pixel_clock = 297000000,
620 .conf = {
621 0x01, 0x51, 0x3E, 0x05, 0x40, 0xF0, 0x88, 0xC2,
622 0x52, 0x53, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
623 0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
624 0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
625 },
626 },
627 };
628
629 static const char * const hdmi_clk_gates4[] = {
630 "hdmi", "sclk_hdmi"
631 };
632
633 static const char * const hdmi_clk_muxes4[] = {
634 "sclk_pixel", "sclk_hdmiphy", "mout_hdmi"
635 };
636
637 static const char * const hdmi_clk_gates5433[] = {
638 "hdmi_pclk", "hdmi_i_pclk", "i_tmds_clk", "i_pixel_clk", "i_spdif_clk"
639 };
640
641 static const char * const hdmi_clk_muxes5433[] = {
642 "oscclk", "tmds_clko", "tmds_clko_user",
643 "oscclk", "pixel_clko", "pixel_clko_user"
644 };
645
646 static const struct hdmi_driver_data exynos4210_hdmi_driver_data = {
647 .type = HDMI_TYPE13,
648 .phy_confs = INIT_ARRAY_SPEC(hdmiphy_v13_configs),
649 .clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates4),
650 .clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes4),
651 };
652
653 static const struct hdmi_driver_data exynos4212_hdmi_driver_data = {
654 .type = HDMI_TYPE14,
655 .phy_confs = INIT_ARRAY_SPEC(hdmiphy_v14_configs),
656 .clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates4),
657 .clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes4),
658 };
659
660 static const struct hdmi_driver_data exynos5420_hdmi_driver_data = {
661 .type = HDMI_TYPE14,
662 .is_apb_phy = 1,
663 .phy_confs = INIT_ARRAY_SPEC(hdmiphy_5420_configs),
664 .clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates4),
665 .clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes4),
666 };
667
668 static const struct hdmi_driver_data exynos5433_hdmi_driver_data = {
669 .type = HDMI_TYPE14,
670 .is_apb_phy = 1,
671 .has_sysreg = 1,
672 .phy_confs = INIT_ARRAY_SPEC(hdmiphy_5433_configs),
673 .clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates5433),
674 .clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes5433),
675 };
676
677 static inline u32 hdmi_map_reg(struct hdmi_context *hdata, u32 reg_id)
678 {
679 if ((reg_id & 0xffff0000) == HDMI_MAPPED_BASE)
680 return hdmi_reg_map[reg_id & 0xffff][hdata->drv_data->type];
681 return reg_id;
682 }
683
684 static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id)
685 {
686 return readl(hdata->regs + hdmi_map_reg(hdata, reg_id));
687 }
688
689 static inline void hdmi_reg_writeb(struct hdmi_context *hdata,
690 u32 reg_id, u8 value)
691 {
692 writel(value, hdata->regs + hdmi_map_reg(hdata, reg_id));
693 }
694
695 static inline void hdmi_reg_writev(struct hdmi_context *hdata, u32 reg_id,
696 int bytes, u32 val)
697 {
698 reg_id = hdmi_map_reg(hdata, reg_id);
699
700 while (--bytes >= 0) {
701 writel(val & 0xff, hdata->regs + reg_id);
702 val >>= 8;
703 reg_id += 4;
704 }
705 }
706
707 static inline void hdmi_reg_write_buf(struct hdmi_context *hdata, u32 reg_id,
708 u8 *buf, int size)
709 {
710 for (reg_id = hdmi_map_reg(hdata, reg_id); size; --size, reg_id += 4)
711 writel(*buf++, hdata->regs + reg_id);
712 }
713
714 static inline void hdmi_reg_writemask(struct hdmi_context *hdata,
715 u32 reg_id, u32 value, u32 mask)
716 {
717 u32 old;
718
719 reg_id = hdmi_map_reg(hdata, reg_id);
720 old = readl(hdata->regs + reg_id);
721 value = (value & mask) | (old & ~mask);
722 writel(value, hdata->regs + reg_id);
723 }
724
725 static int hdmiphy_reg_write_buf(struct hdmi_context *hdata,
726 u32 reg_offset, const u8 *buf, u32 len)
727 {
728 if ((reg_offset + len) > 32)
729 return -EINVAL;
730
731 if (hdata->hdmiphy_port) {
732 int ret;
733
734 ret = i2c_master_send(hdata->hdmiphy_port, buf, len);
735 if (ret == len)
736 return 0;
737 return ret;
738 } else {
739 int i;
740 for (i = 0; i < len; i++)
741 writel(buf[i], hdata->regs_hdmiphy +
742 ((reg_offset + i)<<2));
743 return 0;
744 }
745 }
746
747 static int hdmi_clk_enable_gates(struct hdmi_context *hdata)
748 {
749 int i, ret;
750
751 for (i = 0; i < hdata->drv_data->clk_gates.count; ++i) {
752 ret = clk_prepare_enable(hdata->clk_gates[i]);
753 if (!ret)
754 continue;
755
756 dev_err(hdata->dev, "Cannot enable clock '%s', %d\n",
757 hdata->drv_data->clk_gates.data[i], ret);
758 while (i--)
759 clk_disable_unprepare(hdata->clk_gates[i]);
760 return ret;
761 }
762
763 return 0;
764 }
765
766 static void hdmi_clk_disable_gates(struct hdmi_context *hdata)
767 {
768 int i = hdata->drv_data->clk_gates.count;
769
770 while (i--)
771 clk_disable_unprepare(hdata->clk_gates[i]);
772 }
773
774 static int hdmi_clk_set_parents(struct hdmi_context *hdata, bool to_phy)
775 {
776 struct device *dev = hdata->dev;
777 int ret = 0;
778 int i;
779
780 for (i = 0; i < hdata->drv_data->clk_muxes.count; i += 3) {
781 struct clk **c = &hdata->clk_muxes[i];
782
783 ret = clk_set_parent(c[2], c[to_phy]);
784 if (!ret)
785 continue;
786
787 dev_err(dev, "Cannot set clock parent of '%s' to '%s', %d\n",
788 hdata->drv_data->clk_muxes.data[i + 2],
789 hdata->drv_data->clk_muxes.data[i + to_phy], ret);
790 }
791
792 return ret;
793 }
794
795 static int hdmi_audio_infoframe_apply(struct hdmi_context *hdata)
796 {
797 struct hdmi_audio_infoframe *infoframe = &hdata->audio.infoframe;
798 u8 buf[HDMI_INFOFRAME_SIZE(AUDIO)];
799 int len;
800
801 len = hdmi_audio_infoframe_pack(infoframe, buf, sizeof(buf));
802 if (len < 0)
803 return len;
804
805 hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_EVERY_VSYNC);
806 hdmi_reg_write_buf(hdata, HDMI_AUI_HEADER0, buf, len);
807
808 return 0;
809 }
810
811 static void hdmi_reg_infoframes(struct hdmi_context *hdata)
812 {
813 struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
814 union hdmi_infoframe frm;
815 u8 buf[25];
816 int ret;
817
818 if (hdata->dvi_mode) {
819 hdmi_reg_writeb(hdata, HDMI_AVI_CON,
820 HDMI_AVI_CON_DO_NOT_TRANSMIT);
821 hdmi_reg_writeb(hdata, HDMI_VSI_CON,
822 HDMI_VSI_CON_DO_NOT_TRANSMIT);
823 hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_NO_TRAN);
824 return;
825 }
826
827 ret = drm_hdmi_avi_infoframe_from_display_mode(&frm.avi,
828 &hdata->connector, m);
829 if (!ret)
830 ret = hdmi_avi_infoframe_pack(&frm.avi, buf, sizeof(buf));
831 if (ret > 0) {
832 hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC);
833 hdmi_reg_write_buf(hdata, HDMI_AVI_HEADER0, buf, ret);
834 } else {
835 DRM_INFO("%s: invalid AVI infoframe (%d)\n", __func__, ret);
836 }
837
838 ret = drm_hdmi_vendor_infoframe_from_display_mode(&frm.vendor.hdmi,
839 &hdata->connector, m);
840 if (!ret)
841 ret = hdmi_vendor_infoframe_pack(&frm.vendor.hdmi, buf,
842 sizeof(buf));
843 if (ret > 0) {
844 hdmi_reg_writeb(hdata, HDMI_VSI_CON, HDMI_VSI_CON_EVERY_VSYNC);
845 hdmi_reg_write_buf(hdata, HDMI_VSI_HEADER0, buf, 3);
846 hdmi_reg_write_buf(hdata, HDMI_VSI_DATA(0), buf + 3, ret - 3);
847 }
848
849 hdmi_audio_infoframe_apply(hdata);
850 }
851
852 static enum drm_connector_status hdmi_detect(struct drm_connector *connector,
853 bool force)
854 {
855 struct hdmi_context *hdata = connector_to_hdmi(connector);
856
857 if (gpiod_get_value(hdata->hpd_gpio))
858 return connector_status_connected;
859
860 cec_notifier_set_phys_addr(hdata->notifier, CEC_PHYS_ADDR_INVALID);
861 return connector_status_disconnected;
862 }
863
864 static void hdmi_connector_destroy(struct drm_connector *connector)
865 {
866 struct hdmi_context *hdata = connector_to_hdmi(connector);
867
868 cec_notifier_conn_unregister(hdata->notifier);
869
870 drm_connector_unregister(connector);
871 drm_connector_cleanup(connector);
872 }
873
874 static const struct drm_connector_funcs hdmi_connector_funcs = {
875 .fill_modes = drm_helper_probe_single_connector_modes,
876 .detect = hdmi_detect,
877 .destroy = hdmi_connector_destroy,
878 .reset = drm_atomic_helper_connector_reset,
879 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
880 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
881 };
882
883 static int hdmi_get_modes(struct drm_connector *connector)
884 {
885 struct hdmi_context *hdata = connector_to_hdmi(connector);
886 struct edid *edid;
887 int ret;
888
889 if (!hdata->ddc_adpt)
890 return -ENODEV;
891
892 edid = drm_get_edid(connector, hdata->ddc_adpt);
893 if (!edid)
894 return -ENODEV;
895
896 hdata->dvi_mode = !drm_detect_hdmi_monitor(edid);
897 DRM_DEV_DEBUG_KMS(hdata->dev, "%s : width[%d] x height[%d]\n",
898 (hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"),
899 edid->width_cm, edid->height_cm);
900
901 drm_connector_update_edid_property(connector, edid);
902 cec_notifier_set_phys_addr_from_edid(hdata->notifier, edid);
903
904 ret = drm_add_edid_modes(connector, edid);
905
906 kfree(edid);
907
908 return ret;
909 }
910
911 static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
912 {
913 const struct hdmiphy_configs *confs = &hdata->drv_data->phy_confs;
914 int i;
915
916 for (i = 0; i < confs->count; i++)
917 if (confs->data[i].pixel_clock == pixel_clock)
918 return i;
919
920 DRM_DEV_DEBUG_KMS(hdata->dev, "Could not find phy config for %d\n",
921 pixel_clock);
922 return -EINVAL;
923 }
924
925 static int hdmi_mode_valid(struct drm_connector *connector,
926 struct drm_display_mode *mode)
927 {
928 struct hdmi_context *hdata = connector_to_hdmi(connector);
929 int ret;
930
931 DRM_DEV_DEBUG_KMS(hdata->dev,
932 "xres=%d, yres=%d, refresh=%d, intl=%d clock=%d\n",
933 mode->hdisplay, mode->vdisplay,
934 drm_mode_vrefresh(mode),
935 (mode->flags & DRM_MODE_FLAG_INTERLACE) ? true :
936 false, mode->clock * 1000);
937
938 ret = hdmi_find_phy_conf(hdata, mode->clock * 1000);
939 if (ret < 0)
940 return MODE_BAD;
941
942 return MODE_OK;
943 }
944
945 static const struct drm_connector_helper_funcs hdmi_connector_helper_funcs = {
946 .get_modes = hdmi_get_modes,
947 .mode_valid = hdmi_mode_valid,
948 };
949
950 static int hdmi_create_connector(struct drm_encoder *encoder)
951 {
952 struct hdmi_context *hdata = encoder_to_hdmi(encoder);
953 struct drm_connector *connector = &hdata->connector;
954 struct cec_connector_info conn_info;
955 int ret;
956
957 connector->interlace_allowed = true;
958 connector->polled = DRM_CONNECTOR_POLL_HPD;
959
960 ret = drm_connector_init_with_ddc(hdata->drm_dev, connector,
961 &hdmi_connector_funcs,
962 DRM_MODE_CONNECTOR_HDMIA,
963 hdata->ddc_adpt);
964 if (ret) {
965 DRM_DEV_ERROR(hdata->dev,
966 "Failed to initialize connector with drm\n");
967 return ret;
968 }
969
970 drm_connector_helper_add(connector, &hdmi_connector_helper_funcs);
971 drm_connector_attach_encoder(connector, encoder);
972
973 if (hdata->bridge) {
974 ret = drm_bridge_attach(encoder, hdata->bridge, NULL, 0);
975 if (ret)
976 DRM_DEV_ERROR(hdata->dev, "Failed to attach bridge\n");
977 }
978
979 cec_fill_conn_info_from_drm(&conn_info, connector);
980
981 hdata->notifier = cec_notifier_conn_register(hdata->dev, NULL,
982 &conn_info);
983 if (!hdata->notifier) {
984 ret = -ENOMEM;
985 DRM_DEV_ERROR(hdata->dev, "Failed to allocate CEC notifier\n");
986 }
987
988 return ret;
989 }
990
991 static bool hdmi_mode_fixup(struct drm_encoder *encoder,
992 const struct drm_display_mode *mode,
993 struct drm_display_mode *adjusted_mode)
994 {
995 struct drm_device *dev = encoder->dev;
996 struct drm_connector *connector;
997 struct drm_display_mode *m;
998 struct drm_connector_list_iter conn_iter;
999 int mode_ok;
1000
1001 drm_mode_set_crtcinfo(adjusted_mode, 0);
1002
1003 drm_connector_list_iter_begin(dev, &conn_iter);
1004 drm_for_each_connector_iter(connector, &conn_iter) {
1005 if (connector->encoder == encoder)
1006 break;
1007 }
1008 if (connector)
1009 drm_connector_get(connector);
1010 drm_connector_list_iter_end(&conn_iter);
1011
1012 if (!connector)
1013 return true;
1014
1015 mode_ok = hdmi_mode_valid(connector, adjusted_mode);
1016
1017 if (mode_ok == MODE_OK)
1018 goto cleanup;
1019
1020 /*
1021 * Find the most suitable mode and copy it to adjusted_mode.
1022 */
1023 list_for_each_entry(m, &connector->modes, head) {
1024 mode_ok = hdmi_mode_valid(connector, m);
1025
1026 if (mode_ok == MODE_OK) {
1027 DRM_INFO("desired mode doesn't exist so\n");
1028 DRM_INFO("use the most suitable mode among modes.\n");
1029
1030 DRM_DEV_DEBUG_KMS(dev->dev,
1031 "Adjusted Mode: [%d]x[%d] [%d]Hz\n",
1032 m->hdisplay, m->vdisplay,
1033 drm_mode_vrefresh(m));
1034
1035 drm_mode_copy(adjusted_mode, m);
1036 break;
1037 }
1038 }
1039
1040 cleanup:
1041 drm_connector_put(connector);
1042
1043 return true;
1044 }
1045
1046 static void hdmi_reg_acr(struct hdmi_context *hdata, u32 freq)
1047 {
1048 u32 n, cts;
1049
1050 cts = (freq % 9) ? 27000 : 30000;
1051 n = 128 * freq / (27000000 / cts);
1052
1053 hdmi_reg_writev(hdata, HDMI_ACR_N0, 3, n);
1054 hdmi_reg_writev(hdata, HDMI_ACR_MCTS0, 3, cts);
1055 hdmi_reg_writev(hdata, HDMI_ACR_CTS0, 3, cts);
1056 hdmi_reg_writeb(hdata, HDMI_ACR_CON, 4);
1057 }
1058
1059 static void hdmi_audio_config(struct hdmi_context *hdata)
1060 {
1061 u32 bit_ch = 1;
1062 u32 data_num, val;
1063 int i;
1064
1065 switch (hdata->audio.params.sample_width) {
1066 case 20:
1067 data_num = 2;
1068 break;
1069 case 24:
1070 data_num = 3;
1071 break;
1072 default:
1073 data_num = 1;
1074 bit_ch = 0;
1075 break;
1076 }
1077
1078 hdmi_reg_acr(hdata, hdata->audio.params.sample_rate);
1079
1080 hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CON, HDMI_I2S_IN_DISABLE
1081 | HDMI_I2S_AUD_I2S | HDMI_I2S_CUV_I2S_ENABLE
1082 | HDMI_I2S_MUX_ENABLE);
1083
1084 hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CH, HDMI_I2S_CH0_EN
1085 | HDMI_I2S_CH1_EN | HDMI_I2S_CH2_EN);
1086
1087 hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CUV, HDMI_I2S_CUV_RL_EN);
1088 hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_DIS);
1089 hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_EN);
1090
1091 val = hdmi_reg_read(hdata, HDMI_I2S_DSD_CON) | 0x01;
1092 hdmi_reg_writeb(hdata, HDMI_I2S_DSD_CON, val);
1093
1094 /* Configuration I2S input ports. Configure I2S_PIN_SEL_0~4 */
1095 hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_0, HDMI_I2S_SEL_SCLK(5)
1096 | HDMI_I2S_SEL_LRCK(6));
1097
1098 hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_1, HDMI_I2S_SEL_SDATA1(3)
1099 | HDMI_I2S_SEL_SDATA0(4));
1100
1101 hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_2, HDMI_I2S_SEL_SDATA3(1)
1102 | HDMI_I2S_SEL_SDATA2(2));
1103
1104 hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_3, HDMI_I2S_SEL_DSD(0));
1105
1106 /* I2S_CON_1 & 2 */
1107 hdmi_reg_writeb(hdata, HDMI_I2S_CON_1, HDMI_I2S_SCLK_FALLING_EDGE
1108 | HDMI_I2S_L_CH_LOW_POL);
1109 hdmi_reg_writeb(hdata, HDMI_I2S_CON_2, HDMI_I2S_MSB_FIRST_MODE
1110 | HDMI_I2S_SET_BIT_CH(bit_ch)
1111 | HDMI_I2S_SET_SDATA_BIT(data_num)
1112 | HDMI_I2S_BASIC_FORMAT);
1113
1114 /* Configuration of the audio channel status registers */
1115 for (i = 0; i < HDMI_I2S_CH_ST_MAXNUM; i++)
1116 hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST(i),
1117 hdata->audio.params.iec.status[i]);
1118
1119 hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_CON, HDMI_I2S_CH_STATUS_RELOAD);
1120 }
1121
1122 static void hdmi_audio_control(struct hdmi_context *hdata)
1123 {
1124 bool enable = !hdata->audio.mute;
1125
1126 if (hdata->dvi_mode)
1127 return;
1128
1129 hdmi_reg_writeb(hdata, HDMI_AUI_CON, enable ?
1130 HDMI_AVI_CON_EVERY_VSYNC : HDMI_AUI_CON_NO_TRAN);
1131 hdmi_reg_writemask(hdata, HDMI_CON_0, enable ?
1132 HDMI_ASP_EN : HDMI_ASP_DIS, HDMI_ASP_MASK);
1133 }
1134
1135 static void hdmi_start(struct hdmi_context *hdata, bool start)
1136 {
1137 struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
1138 u32 val = start ? HDMI_TG_EN : 0;
1139
1140 if (m->flags & DRM_MODE_FLAG_INTERLACE)
1141 val |= HDMI_FIELD_EN;
1142
1143 hdmi_reg_writemask(hdata, HDMI_CON_0, val, HDMI_EN);
1144 hdmi_reg_writemask(hdata, HDMI_TG_CMD, val, HDMI_TG_EN | HDMI_FIELD_EN);
1145 }
1146
1147 static void hdmi_conf_init(struct hdmi_context *hdata)
1148 {
1149 /* disable HPD interrupts from HDMI IP block, use GPIO instead */
1150 hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
1151 HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
1152
1153 /* choose HDMI mode */
1154 hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
1155 HDMI_MODE_HDMI_EN, HDMI_MODE_MASK);
1156 /* apply video pre-amble and guard band in HDMI mode only */
1157 hdmi_reg_writeb(hdata, HDMI_CON_2, 0);
1158 /* disable bluescreen */
1159 hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
1160
1161 if (hdata->dvi_mode) {
1162 hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
1163 HDMI_MODE_DVI_EN, HDMI_MODE_MASK);
1164 hdmi_reg_writeb(hdata, HDMI_CON_2,
1165 HDMI_VID_PREAMBLE_DIS | HDMI_GUARD_BAND_DIS);
1166 }
1167
1168 if (hdata->drv_data->type == HDMI_TYPE13) {
1169 /* choose bluescreen (fecal) color */
1170 hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_0, 0x12);
1171 hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_1, 0x34);
1172 hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_2, 0x56);
1173
1174 /* enable AVI packet every vsync, fixes purple line problem */
1175 hdmi_reg_writeb(hdata, HDMI_V13_AVI_CON, 0x02);
1176 /* force RGB, look to CEA-861-D, table 7 for more detail */
1177 hdmi_reg_writeb(hdata, HDMI_V13_AVI_BYTE(0), 0 << 5);
1178 hdmi_reg_writemask(hdata, HDMI_CON_1, 0x10 << 5, 0x11 << 5);
1179
1180 hdmi_reg_writeb(hdata, HDMI_V13_SPD_CON, 0x02);
1181 hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02);
1182 hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04);
1183 } else {
1184 hdmi_reg_infoframes(hdata);
1185
1186 /* enable AVI packet every vsync, fixes purple line problem */
1187 hdmi_reg_writemask(hdata, HDMI_CON_1, 2, 3 << 5);
1188 }
1189 }
1190
1191 static void hdmiphy_wait_for_pll(struct hdmi_context *hdata)
1192 {
1193 int tries;
1194
1195 for (tries = 0; tries < 10; ++tries) {
1196 u32 val = hdmi_reg_read(hdata, HDMI_PHY_STATUS);
1197
1198 if (val & HDMI_PHY_STATUS_READY) {
1199 DRM_DEV_DEBUG_KMS(hdata->dev,
1200 "PLL stabilized after %d tries\n",
1201 tries);
1202 return;
1203 }
1204 usleep_range(10, 20);
1205 }
1206
1207 DRM_DEV_ERROR(hdata->dev, "PLL could not reach steady state\n");
1208 }
1209
1210 static void hdmi_v13_mode_apply(struct hdmi_context *hdata)
1211 {
1212 struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
1213 unsigned int val;
1214
1215 hdmi_reg_writev(hdata, HDMI_H_BLANK_0, 2, m->htotal - m->hdisplay);
1216 hdmi_reg_writev(hdata, HDMI_V13_H_V_LINE_0, 3,
1217 (m->htotal << 12) | m->vtotal);
1218
1219 val = (m->flags & DRM_MODE_FLAG_NVSYNC) ? 1 : 0;
1220 hdmi_reg_writev(hdata, HDMI_VSYNC_POL, 1, val);
1221
1222 val = (m->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0;
1223 hdmi_reg_writev(hdata, HDMI_INT_PRO_MODE, 1, val);
1224
1225 val = (m->hsync_start - m->hdisplay - 2);
1226 val |= ((m->hsync_end - m->hdisplay - 2) << 10);
1227 val |= ((m->flags & DRM_MODE_FLAG_NHSYNC) ? 1 : 0)<<20;
1228 hdmi_reg_writev(hdata, HDMI_V13_H_SYNC_GEN_0, 3, val);
1229
1230 /*
1231 * Quirk requirement for exynos HDMI IP design,
1232 * 2 pixels less than the actual calculation for hsync_start
1233 * and end.
1234 */
1235
1236 /* Following values & calculations differ for different type of modes */
1237 if (m->flags & DRM_MODE_FLAG_INTERLACE) {
1238 val = ((m->vsync_end - m->vdisplay) / 2);
1239 val |= ((m->vsync_start - m->vdisplay) / 2) << 12;
1240 hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_1_0, 3, val);
1241
1242 val = m->vtotal / 2;
1243 val |= ((m->vtotal - m->vdisplay) / 2) << 11;
1244 hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_0, 3, val);
1245
1246 val = (m->vtotal +
1247 ((m->vsync_end - m->vsync_start) * 4) + 5) / 2;
1248 val |= m->vtotal << 11;
1249 hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_F_0, 3, val);
1250
1251 val = ((m->vtotal / 2) + 7);
1252 val |= ((m->vtotal / 2) + 2) << 12;
1253 hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_2_0, 3, val);
1254
1255 val = ((m->htotal / 2) + (m->hsync_start - m->hdisplay));
1256 val |= ((m->htotal / 2) +
1257 (m->hsync_start - m->hdisplay)) << 12;
1258 hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_3_0, 3, val);
1259
1260 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
1261 (m->vtotal - m->vdisplay) / 2);
1262 hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay / 2);
1263
1264 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST2_L, 2, 0x249);
1265 } else {
1266 val = m->vtotal;
1267 val |= (m->vtotal - m->vdisplay) << 11;
1268 hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_0, 3, val);
1269
1270 hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_F_0, 3, 0);
1271
1272 val = (m->vsync_end - m->vdisplay);
1273 val |= ((m->vsync_start - m->vdisplay) << 12);
1274 hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_1_0, 3, val);
1275
1276 hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_2_0, 3, 0x1001);
1277 hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_3_0, 3, 0x1001);
1278 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
1279 m->vtotal - m->vdisplay);
1280 hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay);
1281 }
1282
1283 hdmi_reg_writev(hdata, HDMI_TG_H_FSZ_L, 2, m->htotal);
1284 hdmi_reg_writev(hdata, HDMI_TG_HACT_ST_L, 2, m->htotal - m->hdisplay);
1285 hdmi_reg_writev(hdata, HDMI_TG_HACT_SZ_L, 2, m->hdisplay);
1286 hdmi_reg_writev(hdata, HDMI_TG_V_FSZ_L, 2, m->vtotal);
1287 }
1288
1289 static void hdmi_v14_mode_apply(struct hdmi_context *hdata)
1290 {
1291 struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
1292 struct drm_display_mode *am =
1293 &hdata->encoder.crtc->state->adjusted_mode;
1294 int hquirk = 0;
1295
1296 /*
1297 * In case video mode coming from CRTC differs from requested one HDMI
1298 * sometimes is able to almost properly perform conversion - only
1299 * first line is distorted.
1300 */
1301 if ((m->vdisplay != am->vdisplay) &&
1302 (m->hdisplay == 1280 || m->hdisplay == 1024 || m->hdisplay == 1366))
1303 hquirk = 258;
1304
1305 hdmi_reg_writev(hdata, HDMI_H_BLANK_0, 2, m->htotal - m->hdisplay);
1306 hdmi_reg_writev(hdata, HDMI_V_LINE_0, 2, m->vtotal);
1307 hdmi_reg_writev(hdata, HDMI_H_LINE_0, 2, m->htotal);
1308 hdmi_reg_writev(hdata, HDMI_HSYNC_POL, 1,
1309 (m->flags & DRM_MODE_FLAG_NHSYNC) ? 1 : 0);
1310 hdmi_reg_writev(hdata, HDMI_VSYNC_POL, 1,
1311 (m->flags & DRM_MODE_FLAG_NVSYNC) ? 1 : 0);
1312 hdmi_reg_writev(hdata, HDMI_INT_PRO_MODE, 1,
1313 (m->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0);
1314
1315 /*
1316 * Quirk requirement for exynos 5 HDMI IP design,
1317 * 2 pixels less than the actual calculation for hsync_start
1318 * and end.
1319 */
1320
1321 /* Following values & calculations differ for different type of modes */
1322 if (m->flags & DRM_MODE_FLAG_INTERLACE) {
1323 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_2_0, 2,
1324 (m->vsync_end - m->vdisplay) / 2);
1325 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_1_0, 2,
1326 (m->vsync_start - m->vdisplay) / 2);
1327 hdmi_reg_writev(hdata, HDMI_V2_BLANK_0, 2, m->vtotal / 2);
1328 hdmi_reg_writev(hdata, HDMI_V1_BLANK_0, 2,
1329 (m->vtotal - m->vdisplay) / 2);
1330 hdmi_reg_writev(hdata, HDMI_V_BLANK_F0_0, 2,
1331 m->vtotal - m->vdisplay / 2);
1332 hdmi_reg_writev(hdata, HDMI_V_BLANK_F1_0, 2, m->vtotal);
1333 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_2_0, 2,
1334 (m->vtotal / 2) + 7);
1335 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_1_0, 2,
1336 (m->vtotal / 2) + 2);
1337 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_2_0, 2,
1338 (m->htotal / 2) + (m->hsync_start - m->hdisplay));
1339 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_1_0, 2,
1340 (m->htotal / 2) + (m->hsync_start - m->hdisplay));
1341 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
1342 (m->vtotal - m->vdisplay) / 2);
1343 hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay / 2);
1344 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST2_L, 2,
1345 m->vtotal - m->vdisplay / 2);
1346 hdmi_reg_writev(hdata, HDMI_TG_VSYNC2_L, 2,
1347 (m->vtotal / 2) + 1);
1348 hdmi_reg_writev(hdata, HDMI_TG_VSYNC_BOT_HDMI_L, 2,
1349 (m->vtotal / 2) + 1);
1350 hdmi_reg_writev(hdata, HDMI_TG_FIELD_BOT_HDMI_L, 2,
1351 (m->vtotal / 2) + 1);
1352 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST3_L, 2, 0x0);
1353 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST4_L, 2, 0x0);
1354 } else {
1355 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_2_0, 2,
1356 m->vsync_end - m->vdisplay);
1357 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_1_0, 2,
1358 m->vsync_start - m->vdisplay);
1359 hdmi_reg_writev(hdata, HDMI_V2_BLANK_0, 2, m->vtotal);
1360 hdmi_reg_writev(hdata, HDMI_V1_BLANK_0, 2,
1361 m->vtotal - m->vdisplay);
1362 hdmi_reg_writev(hdata, HDMI_V_BLANK_F0_0, 2, 0xffff);
1363 hdmi_reg_writev(hdata, HDMI_V_BLANK_F1_0, 2, 0xffff);
1364 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_2_0, 2, 0xffff);
1365 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_1_0, 2, 0xffff);
1366 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_2_0, 2, 0xffff);
1367 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_1_0, 2, 0xffff);
1368 hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
1369 m->vtotal - m->vdisplay);
1370 hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay);
1371 }
1372
1373 hdmi_reg_writev(hdata, HDMI_H_SYNC_START_0, 2,
1374 m->hsync_start - m->hdisplay - 2);
1375 hdmi_reg_writev(hdata, HDMI_H_SYNC_END_0, 2,
1376 m->hsync_end - m->hdisplay - 2);
1377 hdmi_reg_writev(hdata, HDMI_VACT_SPACE_1_0, 2, 0xffff);
1378 hdmi_reg_writev(hdata, HDMI_VACT_SPACE_2_0, 2, 0xffff);
1379 hdmi_reg_writev(hdata, HDMI_VACT_SPACE_3_0, 2, 0xffff);
1380 hdmi_reg_writev(hdata, HDMI_VACT_SPACE_4_0, 2, 0xffff);
1381 hdmi_reg_writev(hdata, HDMI_VACT_SPACE_5_0, 2, 0xffff);
1382 hdmi_reg_writev(hdata, HDMI_VACT_SPACE_6_0, 2, 0xffff);
1383 hdmi_reg_writev(hdata, HDMI_V_BLANK_F2_0, 2, 0xffff);
1384 hdmi_reg_writev(hdata, HDMI_V_BLANK_F3_0, 2, 0xffff);
1385 hdmi_reg_writev(hdata, HDMI_V_BLANK_F4_0, 2, 0xffff);
1386 hdmi_reg_writev(hdata, HDMI_V_BLANK_F5_0, 2, 0xffff);
1387 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_3_0, 2, 0xffff);
1388 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_4_0, 2, 0xffff);
1389 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_5_0, 2, 0xffff);
1390 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_6_0, 2, 0xffff);
1391 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_3_0, 2, 0xffff);
1392 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_4_0, 2, 0xffff);
1393 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_5_0, 2, 0xffff);
1394 hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_6_0, 2, 0xffff);
1395
1396 hdmi_reg_writev(hdata, HDMI_TG_H_FSZ_L, 2, m->htotal);
1397 hdmi_reg_writev(hdata, HDMI_TG_HACT_ST_L, 2,
1398 m->htotal - m->hdisplay - hquirk);
1399 hdmi_reg_writev(hdata, HDMI_TG_HACT_SZ_L, 2, m->hdisplay + hquirk);
1400 hdmi_reg_writev(hdata, HDMI_TG_V_FSZ_L, 2, m->vtotal);
1401 if (hdata->drv_data == &exynos5433_hdmi_driver_data)
1402 hdmi_reg_writeb(hdata, HDMI_TG_DECON_EN, 1);
1403 }
1404
1405 static void hdmi_mode_apply(struct hdmi_context *hdata)
1406 {
1407 if (hdata->drv_data->type == HDMI_TYPE13)
1408 hdmi_v13_mode_apply(hdata);
1409 else
1410 hdmi_v14_mode_apply(hdata);
1411
1412 hdmi_start(hdata, true);
1413 }
1414
1415 static void hdmiphy_conf_reset(struct hdmi_context *hdata)
1416 {
1417 hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, 0, 1);
1418 usleep_range(10000, 12000);
1419 hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, ~0, 1);
1420 usleep_range(10000, 12000);
1421 hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);
1422 usleep_range(10000, 12000);
1423 hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, 0, HDMI_PHY_SW_RSTOUT);
1424 usleep_range(10000, 12000);
1425 }
1426
1427 static void hdmiphy_enable_mode_set(struct hdmi_context *hdata, bool enable)
1428 {
1429 u8 v = enable ? HDMI_PHY_ENABLE_MODE_SET : HDMI_PHY_DISABLE_MODE_SET;
1430
1431 if (hdata->drv_data == &exynos5433_hdmi_driver_data)
1432 writel(v, hdata->regs_hdmiphy + HDMIPHY5433_MODE_SET_DONE);
1433 }
1434
1435 static void hdmiphy_conf_apply(struct hdmi_context *hdata)
1436 {
1437 struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
1438 int ret;
1439 const u8 *phy_conf;
1440
1441 ret = hdmi_find_phy_conf(hdata, m->clock * 1000);
1442 if (ret < 0) {
1443 DRM_DEV_ERROR(hdata->dev, "failed to find hdmiphy conf\n");
1444 return;
1445 }
1446 phy_conf = hdata->drv_data->phy_confs.data[ret].conf;
1447
1448 hdmi_clk_set_parents(hdata, false);
1449
1450 hdmiphy_conf_reset(hdata);
1451
1452 hdmiphy_enable_mode_set(hdata, true);
1453 ret = hdmiphy_reg_write_buf(hdata, 0, phy_conf, 32);
1454 if (ret) {
1455 DRM_DEV_ERROR(hdata->dev, "failed to configure hdmiphy\n");
1456 return;
1457 }
1458 hdmiphy_enable_mode_set(hdata, false);
1459 hdmi_clk_set_parents(hdata, true);
1460 usleep_range(10000, 12000);
1461 hdmiphy_wait_for_pll(hdata);
1462 }
1463
1464 /* Should be called with hdata->mutex mutex held */
1465 static void hdmi_conf_apply(struct hdmi_context *hdata)
1466 {
1467 hdmi_start(hdata, false);
1468 hdmi_conf_init(hdata);
1469 hdmi_audio_config(hdata);
1470 hdmi_mode_apply(hdata);
1471 hdmi_audio_control(hdata);
1472 }
1473
1474 static void hdmi_set_refclk(struct hdmi_context *hdata, bool on)
1475 {
1476 if (!hdata->sysreg)
1477 return;
1478
1479 regmap_update_bits(hdata->sysreg, EXYNOS5433_SYSREG_DISP_HDMI_PHY,
1480 SYSREG_HDMI_REFCLK_INT_CLK, on ? ~0 : 0);
1481 }
1482
1483 /* Should be called with hdata->mutex mutex held. */
1484 static void hdmiphy_enable(struct hdmi_context *hdata)
1485 {
1486 if (hdata->powered)
1487 return;
1488
1489 pm_runtime_get_sync(hdata->dev);
1490
1491 if (regulator_bulk_enable(ARRAY_SIZE(supply), hdata->regul_bulk))
1492 DRM_DEV_DEBUG_KMS(hdata->dev,
1493 "failed to enable regulator bulk\n");
1494
1495 regmap_update_bits(hdata->pmureg, PMU_HDMI_PHY_CONTROL,
1496 PMU_HDMI_PHY_ENABLE_BIT, 1);
1497
1498 hdmi_set_refclk(hdata, true);
1499
1500 hdmi_reg_writemask(hdata, HDMI_PHY_CON_0, 0, HDMI_PHY_POWER_OFF_EN);
1501
1502 hdmiphy_conf_apply(hdata);
1503
1504 hdata->powered = true;
1505 }
1506
1507 /* Should be called with hdata->mutex mutex held. */
1508 static void hdmiphy_disable(struct hdmi_context *hdata)
1509 {
1510 if (!hdata->powered)
1511 return;
1512
1513 hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_EN);
1514
1515 hdmi_reg_writemask(hdata, HDMI_PHY_CON_0, ~0, HDMI_PHY_POWER_OFF_EN);
1516
1517 hdmi_set_refclk(hdata, false);
1518
1519 regmap_update_bits(hdata->pmureg, PMU_HDMI_PHY_CONTROL,
1520 PMU_HDMI_PHY_ENABLE_BIT, 0);
1521
1522 regulator_bulk_disable(ARRAY_SIZE(supply), hdata->regul_bulk);
1523
1524 pm_runtime_put_sync(hdata->dev);
1525
1526 hdata->powered = false;
1527 }
1528
1529 static void hdmi_enable(struct drm_encoder *encoder)
1530 {
1531 struct hdmi_context *hdata = encoder_to_hdmi(encoder);
1532
1533 mutex_lock(&hdata->mutex);
1534
1535 hdmiphy_enable(hdata);
1536 hdmi_conf_apply(hdata);
1537
1538 mutex_unlock(&hdata->mutex);
1539 }
1540
1541 static void hdmi_disable(struct drm_encoder *encoder)
1542 {
1543 struct hdmi_context *hdata = encoder_to_hdmi(encoder);
1544
1545 mutex_lock(&hdata->mutex);
1546
1547 if (hdata->powered) {
1548 /*
1549 * The SFRs of VP and Mixer are updated by Vertical Sync of
1550 * Timing generator which is a part of HDMI so the sequence
1551 * to disable TV Subsystem should be as following,
1552 * VP -> Mixer -> HDMI
1553 *
1554 * To achieve such sequence HDMI is disabled together with
1555 * HDMI PHY, via pipe clock callback.
1556 */
1557 mutex_unlock(&hdata->mutex);
1558 cancel_delayed_work(&hdata->hotplug_work);
1559 if (hdata->notifier)
1560 cec_notifier_phys_addr_invalidate(hdata->notifier);
1561 return;
1562 }
1563
1564 mutex_unlock(&hdata->mutex);
1565 }
1566
1567 static const struct drm_encoder_helper_funcs exynos_hdmi_encoder_helper_funcs = {
1568 .mode_fixup = hdmi_mode_fixup,
1569 .enable = hdmi_enable,
1570 .disable = hdmi_disable,
1571 };
1572
1573 static void hdmi_audio_shutdown(struct device *dev, void *data)
1574 {
1575 struct hdmi_context *hdata = dev_get_drvdata(dev);
1576
1577 mutex_lock(&hdata->mutex);
1578
1579 hdata->audio.mute = true;
1580
1581 if (hdata->powered)
1582 hdmi_audio_control(hdata);
1583
1584 mutex_unlock(&hdata->mutex);
1585 }
1586
1587 static int hdmi_audio_hw_params(struct device *dev, void *data,
1588 struct hdmi_codec_daifmt *daifmt,
1589 struct hdmi_codec_params *params)
1590 {
1591 struct hdmi_context *hdata = dev_get_drvdata(dev);
1592
1593 if (daifmt->fmt != HDMI_I2S || daifmt->bit_clk_inv ||
1594 daifmt->frame_clk_inv || daifmt->bit_clk_master ||
1595 daifmt->frame_clk_master) {
1596 dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__,
1597 daifmt->bit_clk_inv, daifmt->frame_clk_inv,
1598 daifmt->bit_clk_master,
1599 daifmt->frame_clk_master);
1600 return -EINVAL;
1601 }
1602
1603 mutex_lock(&hdata->mutex);
1604
1605 hdata->audio.params = *params;
1606
1607 if (hdata->powered) {
1608 hdmi_audio_config(hdata);
1609 hdmi_audio_infoframe_apply(hdata);
1610 }
1611
1612 mutex_unlock(&hdata->mutex);
1613
1614 return 0;
1615 }
1616
1617 static int hdmi_audio_mute(struct device *dev, void *data,
1618 bool mute, int direction)
1619 {
1620 struct hdmi_context *hdata = dev_get_drvdata(dev);
1621
1622 mutex_lock(&hdata->mutex);
1623
1624 hdata->audio.mute = mute;
1625
1626 if (hdata->powered)
1627 hdmi_audio_control(hdata);
1628
1629 mutex_unlock(&hdata->mutex);
1630
1631 return 0;
1632 }
1633
1634 static int hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf,
1635 size_t len)
1636 {
1637 struct hdmi_context *hdata = dev_get_drvdata(dev);
1638 struct drm_connector *connector = &hdata->connector;
1639
1640 memcpy(buf, connector->eld, min(sizeof(connector->eld), len));
1641
1642 return 0;
1643 }
1644
1645 static const struct hdmi_codec_ops audio_codec_ops = {
1646 .hw_params = hdmi_audio_hw_params,
1647 .audio_shutdown = hdmi_audio_shutdown,
1648 .mute_stream = hdmi_audio_mute,
1649 .get_eld = hdmi_audio_get_eld,
1650 .no_capture_mute = 1,
1651 };
1652
1653 static int hdmi_register_audio_device(struct hdmi_context *hdata)
1654 {
1655 struct hdmi_codec_pdata codec_data = {
1656 .ops = &audio_codec_ops,
1657 .max_i2s_channels = 6,
1658 .i2s = 1,
1659 };
1660
1661 hdata->audio.pdev = platform_device_register_data(
1662 hdata->dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO,
1663 &codec_data, sizeof(codec_data));
1664
1665 return PTR_ERR_OR_ZERO(hdata->audio.pdev);
1666 }
1667
1668 static void hdmi_hotplug_work_func(struct work_struct *work)
1669 {
1670 struct hdmi_context *hdata;
1671
1672 hdata = container_of(work, struct hdmi_context, hotplug_work.work);
1673
1674 if (hdata->drm_dev)
1675 drm_helper_hpd_irq_event(hdata->drm_dev);
1676 }
1677
1678 static irqreturn_t hdmi_irq_thread(int irq, void *arg)
1679 {
1680 struct hdmi_context *hdata = arg;
1681
1682 mod_delayed_work(system_wq, &hdata->hotplug_work,
1683 msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS));
1684
1685 return IRQ_HANDLED;
1686 }
1687
1688 static int hdmi_clks_get(struct hdmi_context *hdata,
1689 const struct string_array_spec *names,
1690 struct clk **clks)
1691 {
1692 struct device *dev = hdata->dev;
1693 int i;
1694
1695 for (i = 0; i < names->count; ++i) {
1696 struct clk *clk = devm_clk_get(dev, names->data[i]);
1697
1698 if (IS_ERR(clk)) {
1699 int ret = PTR_ERR(clk);
1700
1701 dev_err(dev, "Cannot get clock %s, %d\n",
1702 names->data[i], ret);
1703
1704 return ret;
1705 }
1706
1707 clks[i] = clk;
1708 }
1709
1710 return 0;
1711 }
1712
1713 static int hdmi_clk_init(struct hdmi_context *hdata)
1714 {
1715 const struct hdmi_driver_data *drv_data = hdata->drv_data;
1716 int count = drv_data->clk_gates.count + drv_data->clk_muxes.count;
1717 struct device *dev = hdata->dev;
1718 struct clk **clks;
1719 int ret;
1720
1721 if (!count)
1722 return 0;
1723
1724 clks = devm_kcalloc(dev, count, sizeof(*clks), GFP_KERNEL);
1725 if (!clks)
1726 return -ENOMEM;
1727
1728 hdata->clk_gates = clks;
1729 hdata->clk_muxes = clks + drv_data->clk_gates.count;
1730
1731 ret = hdmi_clks_get(hdata, &drv_data->clk_gates, hdata->clk_gates);
1732 if (ret)
1733 return ret;
1734
1735 return hdmi_clks_get(hdata, &drv_data->clk_muxes, hdata->clk_muxes);
1736 }
1737
1738
1739 static void hdmiphy_clk_enable(struct exynos_drm_clk *clk, bool enable)
1740 {
1741 struct hdmi_context *hdata = container_of(clk, struct hdmi_context,
1742 phy_clk);
1743 mutex_lock(&hdata->mutex);
1744
1745 if (enable)
1746 hdmiphy_enable(hdata);
1747 else
1748 hdmiphy_disable(hdata);
1749
1750 mutex_unlock(&hdata->mutex);
1751 }
1752
1753 static int hdmi_bridge_init(struct hdmi_context *hdata)
1754 {
1755 struct device *dev = hdata->dev;
1756 struct device_node *ep, *np;
1757
1758 ep = of_graph_get_endpoint_by_regs(dev->of_node, 1, -1);
1759 if (!ep)
1760 return 0;
1761
1762 np = of_graph_get_remote_port_parent(ep);
1763 of_node_put(ep);
1764 if (!np) {
1765 DRM_DEV_ERROR(dev, "failed to get remote port parent");
1766 return -EINVAL;
1767 }
1768
1769 hdata->bridge = of_drm_find_bridge(np);
1770 of_node_put(np);
1771
1772 if (!hdata->bridge)
1773 return -EPROBE_DEFER;
1774
1775 return 0;
1776 }
1777
1778 static int hdmi_resources_init(struct hdmi_context *hdata)
1779 {
1780 struct device *dev = hdata->dev;
1781 int i, ret;
1782
1783 DRM_DEV_DEBUG_KMS(dev, "HDMI resource init\n");
1784
1785 hdata->hpd_gpio = devm_gpiod_get(dev, "hpd", GPIOD_IN);
1786 if (IS_ERR(hdata->hpd_gpio)) {
1787 DRM_DEV_ERROR(dev, "cannot get hpd gpio property\n");
1788 return PTR_ERR(hdata->hpd_gpio);
1789 }
1790
1791 hdata->irq = gpiod_to_irq(hdata->hpd_gpio);
1792 if (hdata->irq < 0) {
1793 DRM_DEV_ERROR(dev, "failed to get GPIO irq\n");
1794 return hdata->irq;
1795 }
1796
1797 ret = hdmi_clk_init(hdata);
1798 if (ret)
1799 return ret;
1800
1801 ret = hdmi_clk_set_parents(hdata, false);
1802 if (ret)
1803 return ret;
1804
1805 for (i = 0; i < ARRAY_SIZE(supply); ++i)
1806 hdata->regul_bulk[i].supply = supply[i];
1807
1808 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(supply), hdata->regul_bulk);
1809 if (ret)
1810 return dev_err_probe(dev, ret, "failed to get regulators\n");
1811
1812 hdata->reg_hdmi_en = devm_regulator_get_optional(dev, "hdmi-en");
1813
1814 if (PTR_ERR(hdata->reg_hdmi_en) != -ENODEV)
1815 if (IS_ERR(hdata->reg_hdmi_en))
1816 return PTR_ERR(hdata->reg_hdmi_en);
1817
1818 return hdmi_bridge_init(hdata);
1819 }
1820
1821 static const struct of_device_id hdmi_match_types[] = {
1822 {
1823 .compatible = "samsung,exynos4210-hdmi",
1824 .data = &exynos4210_hdmi_driver_data,
1825 }, {
1826 .compatible = "samsung,exynos4212-hdmi",
1827 .data = &exynos4212_hdmi_driver_data,
1828 }, {
1829 .compatible = "samsung,exynos5420-hdmi",
1830 .data = &exynos5420_hdmi_driver_data,
1831 }, {
1832 .compatible = "samsung,exynos5433-hdmi",
1833 .data = &exynos5433_hdmi_driver_data,
1834 }, {
1835 /* end node */
1836 }
1837 };
1838 MODULE_DEVICE_TABLE (of, hdmi_match_types);
1839
1840 static int hdmi_bind(struct device *dev, struct device *master, void *data)
1841 {
1842 struct drm_device *drm_dev = data;
1843 struct hdmi_context *hdata = dev_get_drvdata(dev);
1844 struct drm_encoder *encoder = &hdata->encoder;
1845 struct exynos_drm_crtc *crtc;
1846 int ret;
1847
1848 hdata->drm_dev = drm_dev;
1849
1850 hdata->phy_clk.enable = hdmiphy_clk_enable;
1851
1852 drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_TMDS);
1853
1854 drm_encoder_helper_add(encoder, &exynos_hdmi_encoder_helper_funcs);
1855
1856 ret = exynos_drm_set_possible_crtcs(encoder, EXYNOS_DISPLAY_TYPE_HDMI);
1857 if (ret < 0)
1858 return ret;
1859
1860 crtc = exynos_drm_crtc_get_by_type(drm_dev, EXYNOS_DISPLAY_TYPE_HDMI);
1861 crtc->pipe_clk = &hdata->phy_clk;
1862
1863 ret = hdmi_create_connector(encoder);
1864 if (ret) {
1865 DRM_DEV_ERROR(dev, "failed to create connector ret = %d\n",
1866 ret);
1867 drm_encoder_cleanup(encoder);
1868 return ret;
1869 }
1870
1871 return 0;
1872 }
1873
1874 static void hdmi_unbind(struct device *dev, struct device *master, void *data)
1875 {
1876 }
1877
1878 static const struct component_ops hdmi_component_ops = {
1879 .bind = hdmi_bind,
1880 .unbind = hdmi_unbind,
1881 };
1882
1883 static int hdmi_get_ddc_adapter(struct hdmi_context *hdata)
1884 {
1885 const char *compatible_str = "samsung,exynos4210-hdmiddc";
1886 struct device_node *np;
1887 struct i2c_adapter *adpt;
1888
1889 np = of_find_compatible_node(NULL, NULL, compatible_str);
1890 if (np)
1891 np = of_get_next_parent(np);
1892 else
1893 np = of_parse_phandle(hdata->dev->of_node, "ddc", 0);
1894
1895 if (!np) {
1896 DRM_DEV_ERROR(hdata->dev,
1897 "Failed to find ddc node in device tree\n");
1898 return -ENODEV;
1899 }
1900
1901 adpt = of_find_i2c_adapter_by_node(np);
1902 of_node_put(np);
1903
1904 if (!adpt) {
1905 DRM_INFO("Failed to get ddc i2c adapter by node\n");
1906 return -EPROBE_DEFER;
1907 }
1908
1909 hdata->ddc_adpt = adpt;
1910
1911 return 0;
1912 }
1913
1914 static int hdmi_get_phy_io(struct hdmi_context *hdata)
1915 {
1916 const char *compatible_str = "samsung,exynos4212-hdmiphy";
1917 struct device_node *np;
1918 int ret = 0;
1919
1920 np = of_find_compatible_node(NULL, NULL, compatible_str);
1921 if (!np) {
1922 np = of_parse_phandle(hdata->dev->of_node, "phy", 0);
1923 if (!np) {
1924 DRM_DEV_ERROR(hdata->dev,
1925 "Failed to find hdmiphy node in device tree\n");
1926 return -ENODEV;
1927 }
1928 }
1929
1930 if (hdata->drv_data->is_apb_phy) {
1931 hdata->regs_hdmiphy = of_iomap(np, 0);
1932 if (!hdata->regs_hdmiphy) {
1933 DRM_DEV_ERROR(hdata->dev,
1934 "failed to ioremap hdmi phy\n");
1935 ret = -ENOMEM;
1936 goto out;
1937 }
1938 } else {
1939 hdata->hdmiphy_port = of_find_i2c_device_by_node(np);
1940 if (!hdata->hdmiphy_port) {
1941 DRM_INFO("Failed to get hdmi phy i2c client\n");
1942 ret = -EPROBE_DEFER;
1943 goto out;
1944 }
1945 }
1946
1947 out:
1948 of_node_put(np);
1949 return ret;
1950 }
1951
1952 static int hdmi_probe(struct platform_device *pdev)
1953 {
1954 struct hdmi_audio_infoframe *audio_infoframe;
1955 struct device *dev = &pdev->dev;
1956 struct hdmi_context *hdata;
1957 struct resource *res;
1958 int ret;
1959
1960 hdata = devm_kzalloc(dev, sizeof(struct hdmi_context), GFP_KERNEL);
1961 if (!hdata)
1962 return -ENOMEM;
1963
1964 hdata->drv_data = of_device_get_match_data(dev);
1965
1966 platform_set_drvdata(pdev, hdata);
1967
1968 hdata->dev = dev;
1969
1970 mutex_init(&hdata->mutex);
1971
1972 ret = hdmi_resources_init(hdata);
1973 if (ret) {
1974 if (ret != -EPROBE_DEFER)
1975 DRM_DEV_ERROR(dev, "hdmi_resources_init failed\n");
1976 return ret;
1977 }
1978
1979 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1980 hdata->regs = devm_ioremap_resource(dev, res);
1981 if (IS_ERR(hdata->regs)) {
1982 ret = PTR_ERR(hdata->regs);
1983 return ret;
1984 }
1985
1986 ret = hdmi_get_ddc_adapter(hdata);
1987 if (ret)
1988 return ret;
1989
1990 ret = hdmi_get_phy_io(hdata);
1991 if (ret)
1992 goto err_ddc;
1993
1994 INIT_DELAYED_WORK(&hdata->hotplug_work, hdmi_hotplug_work_func);
1995
1996 ret = devm_request_threaded_irq(dev, hdata->irq, NULL,
1997 hdmi_irq_thread, IRQF_TRIGGER_RISING |
1998 IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
1999 "hdmi", hdata);
2000 if (ret) {
2001 DRM_DEV_ERROR(dev, "failed to register hdmi interrupt\n");
2002 goto err_hdmiphy;
2003 }
2004
2005 hdata->pmureg = syscon_regmap_lookup_by_phandle(dev->of_node,
2006 "samsung,syscon-phandle");
2007 if (IS_ERR(hdata->pmureg)) {
2008 DRM_DEV_ERROR(dev, "syscon regmap lookup failed.\n");
2009 ret = -EPROBE_DEFER;
2010 goto err_hdmiphy;
2011 }
2012
2013 if (hdata->drv_data->has_sysreg) {
2014 hdata->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
2015 "samsung,sysreg-phandle");
2016 if (IS_ERR(hdata->sysreg)) {
2017 DRM_DEV_ERROR(dev, "sysreg regmap lookup failed.\n");
2018 ret = -EPROBE_DEFER;
2019 goto err_hdmiphy;
2020 }
2021 }
2022
2023 if (!IS_ERR(hdata->reg_hdmi_en)) {
2024 ret = regulator_enable(hdata->reg_hdmi_en);
2025 if (ret) {
2026 DRM_DEV_ERROR(dev,
2027 "failed to enable hdmi-en regulator\n");
2028 goto err_hdmiphy;
2029 }
2030 }
2031
2032 pm_runtime_enable(dev);
2033
2034 audio_infoframe = &hdata->audio.infoframe;
2035 hdmi_audio_infoframe_init(audio_infoframe);
2036 audio_infoframe->coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
2037 audio_infoframe->sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
2038 audio_infoframe->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
2039 audio_infoframe->channels = 2;
2040
2041 ret = hdmi_register_audio_device(hdata);
2042 if (ret)
2043 goto err_rpm_disable;
2044
2045 ret = component_add(&pdev->dev, &hdmi_component_ops);
2046 if (ret)
2047 goto err_unregister_audio;
2048
2049 return ret;
2050
2051 err_unregister_audio:
2052 platform_device_unregister(hdata->audio.pdev);
2053
2054 err_rpm_disable:
2055 pm_runtime_disable(dev);
2056 if (!IS_ERR(hdata->reg_hdmi_en))
2057 regulator_disable(hdata->reg_hdmi_en);
2058 err_hdmiphy:
2059 if (hdata->hdmiphy_port)
2060 put_device(&hdata->hdmiphy_port->dev);
2061 if (hdata->regs_hdmiphy)
2062 iounmap(hdata->regs_hdmiphy);
2063 err_ddc:
2064 put_device(&hdata->ddc_adpt->dev);
2065
2066 return ret;
2067 }
2068
2069 static int hdmi_remove(struct platform_device *pdev)
2070 {
2071 struct hdmi_context *hdata = platform_get_drvdata(pdev);
2072
2073 cancel_delayed_work_sync(&hdata->hotplug_work);
2074
2075 component_del(&pdev->dev, &hdmi_component_ops);
2076 platform_device_unregister(hdata->audio.pdev);
2077
2078 pm_runtime_disable(&pdev->dev);
2079
2080 if (!IS_ERR(hdata->reg_hdmi_en))
2081 regulator_disable(hdata->reg_hdmi_en);
2082
2083 if (hdata->hdmiphy_port)
2084 put_device(&hdata->hdmiphy_port->dev);
2085
2086 if (hdata->regs_hdmiphy)
2087 iounmap(hdata->regs_hdmiphy);
2088
2089 put_device(&hdata->ddc_adpt->dev);
2090
2091 mutex_destroy(&hdata->mutex);
2092
2093 return 0;
2094 }
2095
2096 static int __maybe_unused exynos_hdmi_suspend(struct device *dev)
2097 {
2098 struct hdmi_context *hdata = dev_get_drvdata(dev);
2099
2100 hdmi_clk_disable_gates(hdata);
2101
2102 return 0;
2103 }
2104
2105 static int __maybe_unused exynos_hdmi_resume(struct device *dev)
2106 {
2107 struct hdmi_context *hdata = dev_get_drvdata(dev);
2108 int ret;
2109
2110 ret = hdmi_clk_enable_gates(hdata);
2111 if (ret < 0)
2112 return ret;
2113
2114 return 0;
2115 }
2116
2117 static const struct dev_pm_ops exynos_hdmi_pm_ops = {
2118 SET_RUNTIME_PM_OPS(exynos_hdmi_suspend, exynos_hdmi_resume, NULL)
2119 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
2120 pm_runtime_force_resume)
2121 };
2122
2123 struct platform_driver hdmi_driver = {
2124 .probe = hdmi_probe,
2125 .remove = hdmi_remove,
2126 .driver = {
2127 .name = "exynos-hdmi",
2128 .owner = THIS_MODULE,
2129 .pm = &exynos_hdmi_pm_ops,
2130 .of_match_table = hdmi_match_types,
2131 },
2132 };
Linux with added FPC-III support