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mm: make wait_on_page_writeback() wait for multiple pending writebacks
[linux/fpc-iii.git] / arch / arm / mach-pxa / palmtreo.c
blob2bf0f7f3ea241ee733c05eddedf9d9783ff183fd
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Hardware definitions for Palm Treo smartphones
4 *
5 * currently supported:
6 * Palm Treo 680 (GSM)
7 * Palm Centro 685 (GSM)
8 *
9 * Author: Tomas Cech <sleep_walker@suse.cz>
10 *
11 * (find more info at www.hackndev.com)
12 */
13
14 #include <linux/platform_device.h>
15 #include <linux/delay.h>
16 #include <linux/irq.h>
17 #include <linux/gpio_keys.h>
18 #include <linux/input.h>
19 #include <linux/memblock.h>
20 #include <linux/pda_power.h>
21 #include <linux/pwm_backlight.h>
22 #include <linux/gpio.h>
23 #include <linux/power_supply.h>
24 #include <linux/w1-gpio.h>
25
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29
30 #include "pxa27x.h"
31 #include "pxa27x-udc.h"
32 #include <mach/audio.h>
33 #include "palmtreo.h"
34 #include <linux/platform_data/mmc-pxamci.h>
35 #include <linux/platform_data/video-pxafb.h>
36 #include <linux/platform_data/irda-pxaficp.h>
37 #include <linux/platform_data/keypad-pxa27x.h>
38 #include "udc.h"
39 #include <linux/platform_data/usb-ohci-pxa27x.h>
40 #include <mach/pxa2xx-regs.h>
41 #include <linux/platform_data/asoc-palm27x.h>
42 #include <linux/platform_data/media/camera-pxa.h>
43 #include "palm27x.h"
44
45 #include <sound/pxa2xx-lib.h>
46
47 #include "generic.h"
48 #include "devices.h"
49
50 /******************************************************************************
51 * Pin configuration
52 ******************************************************************************/
53 static unsigned long treo_pin_config[] __initdata = {
54 /* MMC */
55 GPIO32_MMC_CLK,
56 GPIO92_MMC_DAT_0,
57 GPIO109_MMC_DAT_1,
58 GPIO110_MMC_DAT_2,
59 GPIO111_MMC_DAT_3,
60 GPIO112_MMC_CMD,
61 GPIO113_GPIO, /* SD detect */
62
63 /* AC97 */
64 GPIO28_AC97_BITCLK,
65 GPIO29_AC97_SDATA_IN_0,
66 GPIO30_AC97_SDATA_OUT,
67 GPIO31_AC97_SYNC,
68 GPIO89_AC97_SYSCLK,
69 GPIO95_AC97_nRESET,
70
71 /* IrDA */
72 GPIO46_FICP_RXD,
73 GPIO47_FICP_TXD,
74
75 /* PWM */
76 GPIO16_PWM0_OUT,
77
78 /* USB */
79 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, /* usb detect */
80
81 /* MATRIX KEYPAD */
82 GPIO101_KP_MKIN_1,
83 GPIO102_KP_MKIN_2,
84 GPIO97_KP_MKIN_3,
85 GPIO98_KP_MKIN_4,
86 GPIO91_KP_MKIN_6,
87 GPIO13_KP_MKIN_7,
88 GPIO103_KP_MKOUT_0 | MFP_LPM_DRIVE_HIGH,
89 GPIO104_KP_MKOUT_1,
90 GPIO105_KP_MKOUT_2,
91 GPIO106_KP_MKOUT_3,
92 GPIO107_KP_MKOUT_4,
93 GPIO108_KP_MKOUT_5,
94 GPIO96_KP_MKOUT_6,
95 GPIO93_KP_DKIN_0 | WAKEUP_ON_LEVEL_HIGH, /* Hotsync button */
96
97 /* Quick Capture Interface */
98 GPIO84_CIF_FV,
99 GPIO85_CIF_LV,
100 GPIO53_CIF_MCLK,
101 GPIO54_CIF_PCLK,
102 GPIO81_CIF_DD_0,
103 GPIO55_CIF_DD_1,
104 GPIO51_CIF_DD_2,
105 GPIO50_CIF_DD_3,
106 GPIO52_CIF_DD_4,
107 GPIO48_CIF_DD_5,
108 GPIO17_CIF_DD_6,
109 GPIO12_CIF_DD_7,
110
111 /* I2C */
112 GPIO117_I2C_SCL,
113 GPIO118_I2C_SDA,
114
115 /* GSM */
116 GPIO14_GPIO | WAKEUP_ON_EDGE_BOTH, /* GSM host wake up */
117 GPIO34_FFUART_RXD,
118 GPIO35_FFUART_CTS,
119 GPIO39_FFUART_TXD,
120 GPIO41_FFUART_RTS,
121
122 /* MISC. */
123 GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, /* external power detect */
124 GPIO15_GPIO | WAKEUP_ON_EDGE_BOTH, /* silent switch */
125 GPIO116_GPIO, /* headphone detect */
126 GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH, /* bluetooth host wake up */
127 };
128
129 #ifdef CONFIG_MACH_TREO680
130 static unsigned long treo680_pin_config[] __initdata = {
131 GPIO33_GPIO, /* SD read only */
132
133 /* MATRIX KEYPAD - different wake up source */
134 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
135 GPIO99_KP_MKIN_5,
136
137 /* LCD... L_BIAS alt fn not configured on Treo680; is GPIO instead */
138 GPIOxx_LCD_16BPP,
139 GPIO74_LCD_FCLK,
140 GPIO75_LCD_LCLK,
141 GPIO76_LCD_PCLK,
142 };
143 #endif /* CONFIG_MACH_TREO680 */
144
145 #ifdef CONFIG_MACH_CENTRO
146 static unsigned long centro685_pin_config[] __initdata = {
147 /* Bluetooth attached to BT UART*/
148 MFP_CFG_OUT(GPIO80, AF0, DRIVE_LOW), /* power: LOW = off */
149 GPIO42_BTUART_RXD,
150 GPIO43_BTUART_TXD,
151 GPIO44_BTUART_CTS,
152 GPIO45_BTUART_RTS,
153
154 /* MATRIX KEYPAD - different wake up source */
155 GPIO100_KP_MKIN_0,
156 GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
157
158 /* LCD */
159 GPIOxx_LCD_TFT_16BPP,
160 };
161 #endif /* CONFIG_MACH_CENTRO */
162
163 /******************************************************************************
164 * GPIO keyboard
165 ******************************************************************************/
166 #if IS_ENABLED(CONFIG_KEYBOARD_PXA27x)
167 static const unsigned int treo680_matrix_keys[] = {
168 KEY(0, 0, KEY_F8), /* Red/Off/Power */
169 KEY(0, 1, KEY_LEFT),
170 KEY(0, 2, KEY_LEFTCTRL), /* Alternate */
171 KEY(0, 3, KEY_L),
172 KEY(0, 4, KEY_A),
173 KEY(0, 5, KEY_Q),
174 KEY(0, 6, KEY_P),
175
176 KEY(1, 0, KEY_RIGHTCTRL), /* Menu */
177 KEY(1, 1, KEY_RIGHT),
178 KEY(1, 2, KEY_LEFTSHIFT), /* Left shift */
179 KEY(1, 3, KEY_Z),
180 KEY(1, 4, KEY_S),
181 KEY(1, 5, KEY_W),
182
183 KEY(2, 0, KEY_F1), /* Phone */
184 KEY(2, 1, KEY_UP),
185 KEY(2, 2, KEY_0),
186 KEY(2, 3, KEY_X),
187 KEY(2, 4, KEY_D),
188 KEY(2, 5, KEY_E),
189
190 KEY(3, 0, KEY_F10), /* Calendar */
191 KEY(3, 1, KEY_DOWN),
192 KEY(3, 2, KEY_SPACE),
193 KEY(3, 3, KEY_C),
194 KEY(3, 4, KEY_F),
195 KEY(3, 5, KEY_R),
196
197 KEY(4, 0, KEY_F12), /* Mail */
198 KEY(4, 1, KEY_KPENTER),
199 KEY(4, 2, KEY_RIGHTALT), /* Alt */
200 KEY(4, 3, KEY_V),
201 KEY(4, 4, KEY_G),
202 KEY(4, 5, KEY_T),
203
204 KEY(5, 0, KEY_F9), /* Home */
205 KEY(5, 1, KEY_PAGEUP), /* Side up */
206 KEY(5, 2, KEY_DOT),
207 KEY(5, 3, KEY_B),
208 KEY(5, 4, KEY_H),
209 KEY(5, 5, KEY_Y),
210
211 KEY(6, 0, KEY_TAB), /* Side Activate */
212 KEY(6, 1, KEY_PAGEDOWN), /* Side down */
213 KEY(6, 2, KEY_ENTER),
214 KEY(6, 3, KEY_N),
215 KEY(6, 4, KEY_J),
216 KEY(6, 5, KEY_U),
217
218 KEY(7, 0, KEY_F6), /* Green/Call */
219 KEY(7, 1, KEY_O),
220 KEY(7, 2, KEY_BACKSPACE),
221 KEY(7, 3, KEY_M),
222 KEY(7, 4, KEY_K),
223 KEY(7, 5, KEY_I),
224 };
225
226 static const unsigned int centro_matrix_keys[] = {
227 KEY(0, 0, KEY_F9), /* Home */
228 KEY(0, 1, KEY_LEFT),
229 KEY(0, 2, KEY_LEFTCTRL), /* Alternate */
230 KEY(0, 3, KEY_L),
231 KEY(0, 4, KEY_A),
232 KEY(0, 5, KEY_Q),
233 KEY(0, 6, KEY_P),
234
235 KEY(1, 0, KEY_RIGHTCTRL), /* Menu */
236 KEY(1, 1, KEY_RIGHT),
237 KEY(1, 2, KEY_LEFTSHIFT), /* Left shift */
238 KEY(1, 3, KEY_Z),
239 KEY(1, 4, KEY_S),
240 KEY(1, 5, KEY_W),
241
242 KEY(2, 0, KEY_F1), /* Phone */
243 KEY(2, 1, KEY_UP),
244 KEY(2, 2, KEY_0),
245 KEY(2, 3, KEY_X),
246 KEY(2, 4, KEY_D),
247 KEY(2, 5, KEY_E),
248
249 KEY(3, 0, KEY_F10), /* Calendar */
250 KEY(3, 1, KEY_DOWN),
251 KEY(3, 2, KEY_SPACE),
252 KEY(3, 3, KEY_C),
253 KEY(3, 4, KEY_F),
254 KEY(3, 5, KEY_R),
255
256 KEY(4, 0, KEY_F12), /* Mail */
257 KEY(4, 1, KEY_KPENTER),
258 KEY(4, 2, KEY_RIGHTALT), /* Alt */
259 KEY(4, 3, KEY_V),
260 KEY(4, 4, KEY_G),
261 KEY(4, 5, KEY_T),
262
263 KEY(5, 0, KEY_F8), /* Red/Off/Power */
264 KEY(5, 1, KEY_PAGEUP), /* Side up */
265 KEY(5, 2, KEY_DOT),
266 KEY(5, 3, KEY_B),
267 KEY(5, 4, KEY_H),
268 KEY(5, 5, KEY_Y),
269
270 KEY(6, 0, KEY_TAB), /* Side Activate */
271 KEY(6, 1, KEY_PAGEDOWN), /* Side down */
272 KEY(6, 2, KEY_ENTER),
273 KEY(6, 3, KEY_N),
274 KEY(6, 4, KEY_J),
275 KEY(6, 5, KEY_U),
276
277 KEY(7, 0, KEY_F6), /* Green/Call */
278 KEY(7, 1, KEY_O),
279 KEY(7, 2, KEY_BACKSPACE),
280 KEY(7, 3, KEY_M),
281 KEY(7, 4, KEY_K),
282 KEY(7, 5, KEY_I),
283 };
284
285 static struct matrix_keymap_data treo680_matrix_keymap_data = {
286 .keymap = treo680_matrix_keys,
287 .keymap_size = ARRAY_SIZE(treo680_matrix_keys),
288 };
289
290 static struct matrix_keymap_data centro_matrix_keymap_data = {
291 .keymap = centro_matrix_keys,
292 .keymap_size = ARRAY_SIZE(centro_matrix_keys),
293 };
294
295 static struct pxa27x_keypad_platform_data treo680_keypad_pdata = {
296 .matrix_key_rows = 8,
297 .matrix_key_cols = 7,
298 .matrix_keymap_data = &treo680_matrix_keymap_data,
299 .direct_key_map = { KEY_CONNECT },
300 .direct_key_num = 1,
301
302 .debounce_interval = 30,
303 };
304
305 static void __init palmtreo_kpc_init(void)
306 {
307 static struct pxa27x_keypad_platform_data *data = &treo680_keypad_pdata;
308
309 if (machine_is_centro())
310 data->matrix_keymap_data = &centro_matrix_keymap_data;
311
312 pxa_set_keypad_info(&treo680_keypad_pdata);
313 }
314 #else
315 static inline void palmtreo_kpc_init(void) {}
316 #endif
317
318 /******************************************************************************
319 * USB host
320 ******************************************************************************/
321 #if IS_ENABLED(CONFIG_USB_OHCI_HCD)
322 static struct pxaohci_platform_data treo680_ohci_info = {
323 .port_mode = PMM_PERPORT_MODE,
324 .flags = ENABLE_PORT1 | ENABLE_PORT3,
325 .power_budget = 0,
326 };
327
328 static void __init palmtreo_uhc_init(void)
329 {
330 if (machine_is_treo680())
331 pxa_set_ohci_info(&treo680_ohci_info);
332 }
333 #else
334 static inline void palmtreo_uhc_init(void) {}
335 #endif
336
337 /******************************************************************************
338 * Vibra and LEDs
339 ******************************************************************************/
340 static struct gpio_led treo680_gpio_leds[] = {
341 {
342 .name = "treo680:vibra:vibra",
343 .default_trigger = "none",
344 .gpio = GPIO_NR_TREO680_VIBRATE_EN,
345 },
346 {
347 .name = "treo680:green:led",
348 .default_trigger = "mmc0",
349 .gpio = GPIO_NR_TREO_GREEN_LED,
350 },
351 {
352 .name = "treo680:white:keybbl",
353 .default_trigger = "none",
354 .gpio = GPIO_NR_TREO680_KEYB_BL,
355 },
356 };
357
358 static struct gpio_led_platform_data treo680_gpio_led_info = {
359 .leds = treo680_gpio_leds,
360 .num_leds = ARRAY_SIZE(treo680_gpio_leds),
361 };
362
363 static struct gpio_led centro_gpio_leds[] = {
364 {
365 .name = "centro:vibra:vibra",
366 .default_trigger = "none",
367 .gpio = GPIO_NR_CENTRO_VIBRATE_EN,
368 },
369 {
370 .name = "centro:green:led",
371 .default_trigger = "mmc0",
372 .gpio = GPIO_NR_TREO_GREEN_LED,
373 },
374 {
375 .name = "centro:white:keybbl",
376 .default_trigger = "none",
377 .active_low = 1,
378 .gpio = GPIO_NR_CENTRO_KEYB_BL,
379 },
380 };
381
382 static struct gpio_led_platform_data centro_gpio_led_info = {
383 .leds = centro_gpio_leds,
384 .num_leds = ARRAY_SIZE(centro_gpio_leds),
385 };
386
387 static struct platform_device palmtreo_leds = {
388 .name = "leds-gpio",
389 .id = -1,
390 };
391
392 static void __init palmtreo_leds_init(void)
393 {
394 if (machine_is_centro())
395 palmtreo_leds.dev.platform_data = &centro_gpio_led_info;
396 else if (machine_is_treo680())
397 palmtreo_leds.dev.platform_data = &treo680_gpio_led_info;
398
399 platform_device_register(&palmtreo_leds);
400 }
401
402 /******************************************************************************
403 * Machine init
404 ******************************************************************************/
405 static void __init treo_reserve(void)
406 {
407 memblock_reserve(0xa0000000, 0x1000);
408 memblock_reserve(0xa2000000, 0x1000);
409 }
410
411 static void __init palmphone_common_init(void)
412 {
413 pxa2xx_mfp_config(ARRAY_AND_SIZE(treo_pin_config));
414 pxa_set_ffuart_info(NULL);
415 pxa_set_btuart_info(NULL);
416 pxa_set_stuart_info(NULL);
417 palm27x_pm_init(TREO_STR_BASE);
418 palm27x_lcd_init(GPIO_NR_TREO_BL_POWER, &palm_320x320_new_lcd_mode);
419 palm27x_udc_init(GPIO_NR_TREO_USB_DETECT, GPIO_NR_TREO_USB_PULLUP, 1);
420 palm27x_irda_init(GPIO_NR_TREO_IR_EN);
421 palm27x_ac97_init(-1, -1, -1, 95);
422 palm27x_pwm_init(GPIO_NR_TREO_BL_POWER, -1);
423 palm27x_power_init(GPIO_NR_TREO_POWER_DETECT, -1);
424 palm27x_pmic_init();
425 palmtreo_kpc_init();
426 palmtreo_uhc_init();
427 palmtreo_leds_init();
428 }
429
430 #ifdef CONFIG_MACH_TREO680
431 void __init treo680_gpio_init(void)
432 {
433 unsigned int gpio;
434
435 /* drive all three lcd gpios high initially */
436 const unsigned long lcd_flags = GPIOF_INIT_HIGH | GPIOF_DIR_OUT;
437
438 /*
439 * LCD GPIO initialization...
440 */
441
442 /*
443 * This is likely the power to the lcd. Toggling it low/high appears to
444 * turn the lcd off/on. Can be toggled after lcd is initialized without
445 * any apparent adverse effects to the lcd operation. Note that this
446 * gpio line is used by the lcd controller as the L_BIAS signal, but
447 * treo680 configures it as gpio.
448 */
449 gpio = GPIO_NR_TREO680_LCD_POWER;
450 if (gpio_request_one(gpio, lcd_flags, "LCD power") < 0)
451 goto fail;
452
453 /*
454 * These two are called "enables", for lack of a better understanding.
455 * If either of these are toggled after the lcd is initialized, the
456 * image becomes degraded. N.B. The IPL shipped with the treo
457 * configures GPIO_NR_TREO680_LCD_EN_N as output and drives it high. If
458 * the IPL is ever reprogrammed, this initialization may be need to be
459 * revisited.
460 */
461 gpio = GPIO_NR_TREO680_LCD_EN;
462 if (gpio_request_one(gpio, lcd_flags, "LCD enable") < 0)
463 goto fail;
464 gpio = GPIO_NR_TREO680_LCD_EN_N;
465 if (gpio_request_one(gpio, lcd_flags, "LCD enable_n") < 0)
466 goto fail;
467
468 /* driving this low turns LCD on */
469 gpio_set_value(GPIO_NR_TREO680_LCD_EN_N, 0);
470
471 return;
472 fail:
473 pr_err("gpio %d initialization failed\n", gpio);
474 gpio_free(GPIO_NR_TREO680_LCD_POWER);
475 gpio_free(GPIO_NR_TREO680_LCD_EN);
476 gpio_free(GPIO_NR_TREO680_LCD_EN_N);
477 }
478
479 static struct gpiod_lookup_table treo680_mci_gpio_table = {
480 .dev_id = "pxa2xx-mci.0",
481 .table = {
482 GPIO_LOOKUP("gpio-pxa", GPIO_NR_TREO_SD_DETECT_N,
483 "cd", GPIO_ACTIVE_LOW),
484 GPIO_LOOKUP("gpio-pxa", GPIO_NR_TREO680_SD_READONLY,
485 "wp", GPIO_ACTIVE_LOW),
486 GPIO_LOOKUP("gpio-pxa", GPIO_NR_TREO680_SD_POWER,
487 "power", GPIO_ACTIVE_HIGH),
488 { },
489 },
490 };
491
492 static void __init treo680_init(void)
493 {
494 pxa2xx_mfp_config(ARRAY_AND_SIZE(treo680_pin_config));
495 palmphone_common_init();
496 treo680_gpio_init();
497 palm27x_mmc_init(&treo680_mci_gpio_table);
498 }
499 #endif
500
501 #ifdef CONFIG_MACH_CENTRO
502
503 static struct gpiod_lookup_table centro685_mci_gpio_table = {
504 .dev_id = "pxa2xx-mci.0",
505 .table = {
506 GPIO_LOOKUP("gpio-pxa", GPIO_NR_TREO_SD_DETECT_N,
507 "cd", GPIO_ACTIVE_LOW),
508 GPIO_LOOKUP("gpio-pxa", GPIO_NR_CENTRO_SD_POWER,
509 "power", GPIO_ACTIVE_LOW),
510 { },
511 },
512 };
513
514 static void __init centro_init(void)
515 {
516 pxa2xx_mfp_config(ARRAY_AND_SIZE(centro685_pin_config));
517 palmphone_common_init();
518 palm27x_mmc_init(&centro685_mci_gpio_table);
519 }
520 #endif
521
522 #ifdef CONFIG_MACH_TREO680
523 MACHINE_START(TREO680, "Palm Treo 680")
524 .atag_offset = 0x100,
525 .map_io = pxa27x_map_io,
526 .reserve = treo_reserve,
527 .nr_irqs = PXA_NR_IRQS,
528 .init_irq = pxa27x_init_irq,
529 .handle_irq = pxa27x_handle_irq,
530 .init_time = pxa_timer_init,
531 .init_machine = treo680_init,
532 .restart = pxa_restart,
533 MACHINE_END
534 #endif
535
536 #ifdef CONFIG_MACH_CENTRO
537 MACHINE_START(CENTRO, "Palm Centro 685")
538 .atag_offset = 0x100,
539 .map_io = pxa27x_map_io,
540 .reserve = treo_reserve,
541 .nr_irqs = PXA_NR_IRQS,
542 .init_irq = pxa27x_init_irq,
543 .handle_irq = pxa27x_handle_irq,
544 .init_time = pxa_timer_init,
545 .init_machine = centro_init,
546 .restart = pxa_restart,
547 MACHINE_END
548 #endif
Linux with added FPC-III support