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[ARM] pxa: simplify the LCD pin configuration for pxa27x platforms
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1/*
2 * Hardware definitions for Palm Zire72
3 *
4 * Authors:
5 * Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
6 * Sergey Lapin <slapin@ossfans.org>
7 * Alex Osborne <bobofdoom@gmail.com>
8 * Jan Herman <2hp@seznam.cz>
9 *
10 * Rewrite for mainline:
11 * Marek Vasut <marek.vasut@gmail.com>
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
16 *
17 * (find more info at www.hackndev.com)
18 *
19 */
20
21#include <linux/platform_device.h>
22#include <linux/sysdev.h>
23#include <linux/delay.h>
24#include <linux/irq.h>
25#include <linux/gpio_keys.h>
26#include <linux/input.h>
27#include <linux/pda_power.h>
28#include <linux/pwm_backlight.h>
29#include <linux/gpio.h>
eb73e622 30#include <linux/wm97xx_batt.h>
c49e1e63 31#include <linux/power_supply.h>
eb73e622 32#include <linux/usb/gpio_vbus.h>
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33
34#include <asm/mach-types.h>
35#include <asm/mach/arch.h>
36#include <asm/mach/map.h>
37
51c62982 38#include <mach/pxa27x.h>
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39#include <mach/audio.h>
40#include <mach/palmz72.h>
41#include <mach/mmc.h>
42#include <mach/pxafb.h>
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43#include <mach/irda.h>
44#include <mach/pxa27x_keypad.h>
45#include <mach/udc.h>
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46#include <mach/palmasoc.h>
47
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48#include <mach/pm.h>
49
50#include "generic.h"
51#include "devices.h"
52
53/******************************************************************************
54 * Pin configuration
55 ******************************************************************************/
56static unsigned long palmz72_pin_config[] __initdata = {
57 /* MMC */
58 GPIO32_MMC_CLK,
59 GPIO92_MMC_DAT_0,
60 GPIO109_MMC_DAT_1,
61 GPIO110_MMC_DAT_2,
62 GPIO111_MMC_DAT_3,
63 GPIO112_MMC_CMD,
64 GPIO14_GPIO, /* SD detect */
65 GPIO115_GPIO, /* SD RO */
66 GPIO98_GPIO, /* SD power */
67
68 /* AC97 */
69 GPIO28_AC97_BITCLK,
70 GPIO29_AC97_SDATA_IN_0,
71 GPIO30_AC97_SDATA_OUT,
72 GPIO31_AC97_SYNC,
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73 GPIO89_AC97_SYSCLK,
74 GPIO113_AC97_nRESET,
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75
76 /* IrDA */
77 GPIO49_GPIO, /* ir disable */
78 GPIO46_FICP_RXD,
79 GPIO47_FICP_TXD,
80
81 /* PWM */
82 GPIO16_PWM0_OUT,
83
84 /* USB */
85 GPIO15_GPIO, /* usb detect */
eb73e622 86 GPIO95_GPIO, /* usb pullup */
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87
88 /* Matrix keypad */
89 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
90 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
91 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
92 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
93 GPIO103_KP_MKOUT_0,
94 GPIO104_KP_MKOUT_1,
95 GPIO105_KP_MKOUT_2,
96
97 /* LCD */
bedbda97
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98 GPIOxx_LCD_TFT_16BPP,
99
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100 GPIO20_GPIO, /* bl power */
101 GPIO21_GPIO, /* LCD border switch */
102 GPIO22_GPIO, /* LCD border color */
103 GPIO96_GPIO, /* lcd power */
104
105 /* Misc. */
106 GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
107 GPIO88_GPIO, /* green led */
108 GPIO27_GPIO, /* WM9712 IRQ */
109};
110
111/******************************************************************************
112 * SD/MMC card controller
113 ******************************************************************************/
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114/* SD_POWER is not actually power, but it is more like chip
115 * select, i.e. it is inverted */
c49e1e63 116static struct pxamci_platform_data palmz72_mci_platform_data = {
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117 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
118 .gpio_card_detect = GPIO_NR_PALMZ72_SD_DETECT_N,
119 .gpio_card_ro = GPIO_NR_PALMZ72_SD_RO,
120 .gpio_power = GPIO_NR_PALMZ72_SD_POWER_N,
121 .gpio_power_invert = 1,
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122};
123
124/******************************************************************************
125 * GPIO keyboard
126 ******************************************************************************/
127static unsigned int palmz72_matrix_keys[] = {
128 KEY(0, 0, KEY_POWER),
129 KEY(0, 1, KEY_F1),
130 KEY(0, 2, KEY_ENTER),
131
132 KEY(1, 0, KEY_F2),
133 KEY(1, 1, KEY_F3),
134 KEY(1, 2, KEY_F4),
135
136 KEY(2, 0, KEY_UP),
137 KEY(2, 2, KEY_DOWN),
138
139 KEY(3, 0, KEY_RIGHT),
140 KEY(3, 2, KEY_LEFT),
141};
142
143static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
144 .matrix_key_rows = 4,
145 .matrix_key_cols = 3,
146 .matrix_key_map = palmz72_matrix_keys,
147 .matrix_key_map_size = ARRAY_SIZE(palmz72_matrix_keys),
148
149 .debounce_interval = 30,
150};
151
152/******************************************************************************
153 * Backlight
154 ******************************************************************************/
155static int palmz72_backlight_init(struct device *dev)
156{
157 int ret;
158
159 ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
160 if (ret)
161 goto err;
162 ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
163 if (ret)
164 goto err2;
165 ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
166 if (ret)
167 goto err2;
168 ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
169 if (ret)
170 goto err3;
171
172 return 0;
173err3:
174 gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
175err2:
176 gpio_free(GPIO_NR_PALMZ72_BL_POWER);
177err:
178 return ret;
179}
180
2d51a521 181static int palmz72_backlight_notify(struct device *dev, int brightness)
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182{
183 gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
184 gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
185 return brightness;
186}
187
188static void palmz72_backlight_exit(struct device *dev)
189{
190 gpio_free(GPIO_NR_PALMZ72_BL_POWER);
191 gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
192}
193
194static struct platform_pwm_backlight_data palmz72_backlight_data = {
195 .pwm_id = 0,
196 .max_brightness = PALMZ72_MAX_INTENSITY,
197 .dft_brightness = PALMZ72_MAX_INTENSITY,
198 .pwm_period_ns = PALMZ72_PERIOD_NS,
199 .init = palmz72_backlight_init,
200 .notify = palmz72_backlight_notify,
201 .exit = palmz72_backlight_exit,
202};
203
204static struct platform_device palmz72_backlight = {
205 .name = "pwm-backlight",
206 .dev = {
207 .parent = &pxa27x_device_pwm0.dev,
208 .platform_data = &palmz72_backlight_data,
209 },
210};
211
212/******************************************************************************
213 * IrDA
214 ******************************************************************************/
c49e1e63 215static struct pxaficp_platform_data palmz72_ficp_platform_data = {
c4bd0172 216 .gpio_pwdown = GPIO_NR_PALMZ72_IR_DISABLE,
c49e1e63 217 .transceiver_cap = IR_SIRMODE | IR_OFF,
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218};
219
220/******************************************************************************
221 * LEDs
222 ******************************************************************************/
223static struct gpio_led gpio_leds[] = {
224 {
225 .name = "palmz72:green:led",
226 .default_trigger = "none",
227 .gpio = GPIO_NR_PALMZ72_LED_GREEN,
228 },
229};
230
231static struct gpio_led_platform_data gpio_led_info = {
232 .leds = gpio_leds,
233 .num_leds = ARRAY_SIZE(gpio_leds),
234};
235
236static struct platform_device palmz72_leds = {
237 .name = "leds-gpio",
238 .id = -1,
239 .dev = {
240 .platform_data = &gpio_led_info,
241 }
242};
243
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244/******************************************************************************
245 * UDC
246 ******************************************************************************/
247static struct gpio_vbus_mach_info palmz72_udc_info = {
248 .gpio_vbus = GPIO_NR_PALMZ72_USB_DETECT_N,
249 .gpio_pullup = GPIO_NR_PALMZ72_USB_PULLUP,
250};
251
252static struct platform_device palmz72_gpio_vbus = {
253 .name = "gpio-vbus",
254 .id = -1,
255 .dev = {
256 .platform_data = &palmz72_udc_info,
257 },
258};
259
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260/******************************************************************************
261 * Power supply
262 ******************************************************************************/
263static int power_supply_init(struct device *dev)
264{
265 int ret;
266
267 ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
268 if (ret)
269 goto err1;
270 ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
271 if (ret)
272 goto err2;
273
274 ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
275 if (ret)
276 goto err2;
277 ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
278 if (ret)
279 goto err3;
280
281 return 0;
282err3:
283 gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
284err2:
285 gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
286err1:
287 return ret;
288}
289
290static int palmz72_is_ac_online(void)
291{
292 return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
293}
294
295static int palmz72_is_usb_online(void)
296{
297 return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
298}
299
300static void power_supply_exit(struct device *dev)
301{
302 gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
303 gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
304}
305
306static char *palmz72_supplicants[] = {
307 "main-battery",
308};
309
310static struct pda_power_pdata power_supply_info = {
311 .init = power_supply_init,
312 .is_ac_online = palmz72_is_ac_online,
313 .is_usb_online = palmz72_is_usb_online,
314 .exit = power_supply_exit,
315 .supplied_to = palmz72_supplicants,
316 .num_supplicants = ARRAY_SIZE(palmz72_supplicants),
317};
318
319static struct platform_device power_supply = {
320 .name = "pda-power",
321 .id = -1,
322 .dev = {
323 .platform_data = &power_supply_info,
324 },
325};
326
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327/******************************************************************************
328 * WM97xx battery
329 ******************************************************************************/
330static struct wm97xx_batt_info wm97xx_batt_pdata = {
331 .batt_aux = WM97XX_AUX_ID3,
332 .temp_aux = WM97XX_AUX_ID2,
333 .charge_gpio = -1,
334 .max_voltage = PALMZ72_BAT_MAX_VOLTAGE,
335 .min_voltage = PALMZ72_BAT_MIN_VOLTAGE,
336 .batt_mult = 1000,
337 .batt_div = 414,
338 .temp_mult = 1,
339 .temp_div = 1,
340 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
341 .batt_name = "main-batt",
342};
343
344/******************************************************************************
345 * aSoC audio
346 ******************************************************************************/
347static struct platform_device palmz72_asoc = {
348 .name = "palm27x-asoc",
349 .id = -1,
350};
351
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352/******************************************************************************
353 * Framebuffer
354 ******************************************************************************/
355static struct pxafb_mode_info palmz72_lcd_modes[] = {
356{
357 .pixclock = 115384,
358 .xres = 320,
359 .yres = 320,
360 .bpp = 16,
361
362 .left_margin = 27,
363 .right_margin = 7,
364 .upper_margin = 7,
365 .lower_margin = 8,
366
367 .hsync_len = 6,
368 .vsync_len = 1,
369},
370};
371
372static struct pxafb_mach_info palmz72_lcd_screen = {
373 .modes = palmz72_lcd_modes,
374 .num_modes = ARRAY_SIZE(palmz72_lcd_modes),
375 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
376};
377
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378#ifdef CONFIG_PM
379
380/* We have some black magic here
381 * PalmOS ROM on recover expects special struct physical address
382 * to be transferred via PSPR. Using this struct PalmOS restores
383 * its state after sleep. As for Linux, we need to setup it the
384 * same way. More than that, PalmOS ROM changes some values in memory.
385 * For now only one location is found, which needs special treatment.
386 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
387 * for reading backtraces for me :)
388 */
389
390#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
391
392static struct palmz72_resume_info palmz72_resume_info = {
393 .magic0 = 0xb4e6,
394 .magic1 = 1,
395
396 /* reset state, MMU off etc */
397 .arm_control = 0,
398 .aux_control = 0,
399 .ttb = 0,
400 .domain_access = 0,
401 .process_id = 0,
402};
403
404static unsigned long store_ptr;
405
406/* sys_device for Palm Zire 72 PM */
407
408static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
409{
410 /* setup the resume_info struct for the original bootloader */
411 palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume;
412
413 /* Storing memory touched by ROM */
414 store_ptr = *PALMZ72_SAVE_DWORD;
415
416 /* Setting PSPR to a proper value */
417 PSPR = virt_to_phys(&palmz72_resume_info);
418
419 return 0;
420}
421
422static int palmz72_pm_resume(struct sys_device *dev)
423{
424 *PALMZ72_SAVE_DWORD = store_ptr;
425 return 0;
426}
427
428static struct sysdev_class palmz72_pm_sysclass = {
429 .name = "palmz72_pm",
430 .suspend = palmz72_pm_suspend,
431 .resume = palmz72_pm_resume,
432};
433
434static struct sys_device palmz72_pm_device = {
435 .cls = &palmz72_pm_sysclass,
436};
437
438static int __init palmz72_pm_init(void)
439{
440 int ret = -ENODEV;
441 if (machine_is_palmz72()) {
442 ret = sysdev_class_register(&palmz72_pm_sysclass);
443 if (ret == 0)
444 ret = sysdev_register(&palmz72_pm_device);
445 }
446 return ret;
447}
448
449device_initcall(palmz72_pm_init);
450#endif
451
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452/******************************************************************************
453 * Machine init
454 ******************************************************************************/
455static struct platform_device *devices[] __initdata = {
456 &palmz72_backlight,
457 &palmz72_leds,
eb73e622 458 &palmz72_asoc,
c49e1e63 459 &power_supply,
eb73e622 460 &palmz72_gpio_vbus,
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461};
462
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463/* setup udc GPIOs initial state */
464static void __init palmz72_udc_init(void)
465{
466 if (!gpio_request(GPIO_NR_PALMZ72_USB_PULLUP, "USB Pullup")) {
467 gpio_direction_output(GPIO_NR_PALMZ72_USB_PULLUP, 0);
468 gpio_free(GPIO_NR_PALMZ72_USB_PULLUP);
469 }
470}
471
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472static void __init palmz72_init(void)
473{
474 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
eb73e622 475
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476 pxa_set_ffuart_info(NULL);
477 pxa_set_btuart_info(NULL);
478 pxa_set_stuart_info(NULL);
479
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480 set_pxa_fb_info(&palmz72_lcd_screen);
481 pxa_set_mci_info(&palmz72_mci_platform_data);
eb73e622 482 palmz72_udc_init();
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483 pxa_set_ac97_info(NULL);
484 pxa_set_ficp_info(&palmz72_ficp_platform_data);
485 pxa_set_keypad_info(&palmz72_keypad_platform_data);
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486 wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
487
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488 platform_add_devices(devices, ARRAY_SIZE(devices));
489}
490
491MACHINE_START(PALMZ72, "Palm Zire72")
492 .phys_io = 0x40000000,
493 .io_pg_offst = io_p2v(0x40000000),
494 .boot_params = 0xa0000100,
495 .map_io = pxa_map_io,
496 .init_irq = pxa27x_init_irq,
497 .timer = &pxa_timer,
498 .init_machine = palmz72_init
499MACHINE_END