1 /*
2 * Common code for Palm LD, T5, TX, Z72
3 *
4 * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 */
11
12 #include <linux/platform_device.h>
13 #include <linux/delay.h>
14 #include <linux/irq.h>
15 #include <linux/gpio_keys.h>
16 #include <linux/input.h>
17 #include <linux/pda_power.h>
18 #include <linux/pwm.h>
19 #include <linux/pwm_backlight.h>
20 #include <linux/gpio.h>
21 #include <linux/wm97xx.h>
22 #include <linux/power_supply.h>
23 #include <linux/usb/gpio_vbus.h>
24 #include <linux/regulator/max1586.h>
25 #include <linux/i2c/pxa-i2c.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30
31 #include "pxa27x.h"
32 #include <mach/audio.h>
33 #include <linux/platform_data/mmc-pxamci.h>
34 #include <linux/platform_data/video-pxafb.h>
35 #include <linux/platform_data/irda-pxaficp.h>
36 #include "udc.h"
37 #include <linux/platform_data/asoc-palm27x.h>
38 #include "palm27x.h"
39
40 #include "generic.h"
41 #include "devices.h"
42
43 /******************************************************************************
44 * SD/MMC card controller
45 ******************************************************************************/
46 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
47 static struct pxamci_platform_data palm27x_mci_platform_data = {
48 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
49 .detect_delay_ms = 200,
50 };
51
palm27x_mmc_init(int detect,int ro,int power,int power_inverted)52 void __init palm27x_mmc_init(int detect, int ro, int power,
53 int power_inverted)
54 {
55 palm27x_mci_platform_data.gpio_card_detect = detect;
56 palm27x_mci_platform_data.gpio_card_ro = ro;
57 palm27x_mci_platform_data.gpio_power = power;
58 palm27x_mci_platform_data.gpio_power_invert = power_inverted;
59
60 pxa_set_mci_info(&palm27x_mci_platform_data);
61 }
62 #endif
63
64 /******************************************************************************
65 * Power management - standby
66 ******************************************************************************/
67 #if defined(CONFIG_SUSPEND)
palm27x_pm_init(unsigned long str_base)68 void __init palm27x_pm_init(unsigned long str_base)
69 {
70 static const unsigned long resume[] = {
71 0xe3a00101, /* mov r0, #0x40000000 */
72 0xe380060f, /* orr r0, r0, #0x00f00000 */
73 0xe590f008, /* ldr pc, [r0, #0x08] */
74 };
75
76 /*
77 * Copy the bootloader.
78 * NOTE: PalmZ72 uses a different wakeup method!
79 */
80 memcpy(phys_to_virt(str_base), resume, sizeof(resume));
81 }
82 #endif
83
84 /******************************************************************************
85 * Framebuffer
86 ******************************************************************************/
87 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
88 struct pxafb_mode_info palm_320x480_lcd_mode = {
89 .pixclock = 57692,
90 .xres = 320,
91 .yres = 480,
92 .bpp = 16,
93
94 .left_margin = 32,
95 .right_margin = 1,
96 .upper_margin = 7,
97 .lower_margin = 1,
98
99 .hsync_len = 4,
100 .vsync_len = 1,
101 };
102
103 struct pxafb_mode_info palm_320x320_lcd_mode = {
104 .pixclock = 115384,
105 .xres = 320,
106 .yres = 320,
107 .bpp = 16,
108
109 .left_margin = 27,
110 .right_margin = 7,
111 .upper_margin = 7,
112 .lower_margin = 8,
113
114 .hsync_len = 6,
115 .vsync_len = 1,
116 };
117
118 struct pxafb_mode_info palm_320x320_new_lcd_mode = {
119 .pixclock = 86538,
120 .xres = 320,
121 .yres = 320,
122 .bpp = 16,
123
124 .left_margin = 20,
125 .right_margin = 8,
126 .upper_margin = 8,
127 .lower_margin = 5,
128
129 .hsync_len = 4,
130 .vsync_len = 1,
131 };
132
133 static struct pxafb_mach_info palm27x_lcd_screen = {
134 .num_modes = 1,
135 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
136 };
137
138 static int palm27x_lcd_power;
palm27x_lcd_ctl(int on,struct fb_var_screeninfo * info)139 static void palm27x_lcd_ctl(int on, struct fb_var_screeninfo *info)
140 {
141 gpio_set_value(palm27x_lcd_power, on);
142 }
143
palm27x_lcd_init(int power,struct pxafb_mode_info * mode)144 void __init palm27x_lcd_init(int power, struct pxafb_mode_info *mode)
145 {
146 palm27x_lcd_screen.modes = mode;
147
148 if (gpio_is_valid(power)) {
149 if (!gpio_request(power, "LCD power")) {
150 pr_err("Palm27x: failed to claim lcd power gpio!\n");
151 return;
152 }
153 if (!gpio_direction_output(power, 1)) {
154 pr_err("Palm27x: lcd power configuration failed!\n");
155 return;
156 }
157 palm27x_lcd_power = power;
158 palm27x_lcd_screen.pxafb_lcd_power = palm27x_lcd_ctl;
159 }
160
161 pxa_set_fb_info(NULL, &palm27x_lcd_screen);
162 }
163 #endif
164
165 /******************************************************************************
166 * USB Gadget
167 ******************************************************************************/
168 #if defined(CONFIG_USB_PXA27X) || \
169 defined(CONFIG_USB_PXA27X_MODULE)
170 static struct gpio_vbus_mach_info palm27x_udc_info = {
171 .gpio_vbus_inverted = 1,
172 };
173
174 static struct platform_device palm27x_gpio_vbus = {
175 .name = "gpio-vbus",
176 .id = -1,
177 .dev = {
178 .platform_data = &palm27x_udc_info,
179 },
180 };
181
palm27x_udc_init(int vbus,int pullup,int vbus_inverted)182 void __init palm27x_udc_init(int vbus, int pullup, int vbus_inverted)
183 {
184 palm27x_udc_info.gpio_vbus = vbus;
185 palm27x_udc_info.gpio_pullup = pullup;
186
187 palm27x_udc_info.gpio_vbus_inverted = vbus_inverted;
188
189 if (!gpio_request(pullup, "USB Pullup")) {
190 gpio_direction_output(pullup,
191 palm27x_udc_info.gpio_vbus_inverted);
192 gpio_free(pullup);
193 } else
194 return;
195
196 platform_device_register(&palm27x_gpio_vbus);
197 }
198 #endif
199
200 /******************************************************************************
201 * IrDA
202 ******************************************************************************/
203 #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
204 static struct pxaficp_platform_data palm27x_ficp_platform_data = {
205 .transceiver_cap = IR_SIRMODE | IR_OFF,
206 };
207
palm27x_irda_init(int pwdn)208 void __init palm27x_irda_init(int pwdn)
209 {
210 palm27x_ficp_platform_data.gpio_pwdown = pwdn;
211 pxa_set_ficp_info(&palm27x_ficp_platform_data);
212 }
213 #endif
214
215 /******************************************************************************
216 * WM97xx audio, battery
217 ******************************************************************************/
218 #if defined(CONFIG_TOUCHSCREEN_WM97XX) || \
219 defined(CONFIG_TOUCHSCREEN_WM97XX_MODULE)
220 static struct wm97xx_batt_pdata palm27x_batt_pdata = {
221 .batt_aux = WM97XX_AUX_ID3,
222 .temp_aux = WM97XX_AUX_ID2,
223 .charge_gpio = -1,
224 .batt_mult = 1000,
225 .batt_div = 414,
226 .temp_mult = 1,
227 .temp_div = 1,
228 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
229 .batt_name = "main-batt",
230 };
231
232 static struct wm97xx_pdata palm27x_wm97xx_pdata = {
233 .batt_pdata = &palm27x_batt_pdata,
234 };
235
236 static pxa2xx_audio_ops_t palm27x_ac97_pdata = {
237 .codec_pdata = { &palm27x_wm97xx_pdata, },
238 };
239
240 static struct palm27x_asoc_info palm27x_asoc_pdata = {
241 .jack_gpio = -1,
242 };
243
244 static struct platform_device palm27x_asoc = {
245 .name = "palm27x-asoc",
246 .id = -1,
247 .dev = {
248 .platform_data = &palm27x_asoc_pdata,
249 },
250 };
251
palm27x_ac97_init(int minv,int maxv,int jack,int reset)252 void __init palm27x_ac97_init(int minv, int maxv, int jack, int reset)
253 {
254 palm27x_ac97_pdata.reset_gpio = reset;
255 palm27x_asoc_pdata.jack_gpio = jack;
256
257 if (minv < 0 || maxv < 0) {
258 palm27x_ac97_pdata.codec_pdata[0] = NULL;
259 pxa_set_ac97_info(&palm27x_ac97_pdata);
260 } else {
261 palm27x_batt_pdata.min_voltage = minv,
262 palm27x_batt_pdata.max_voltage = maxv,
263
264 pxa_set_ac97_info(&palm27x_ac97_pdata);
265 platform_device_register(&palm27x_asoc);
266 }
267 }
268 #endif
269
270 /******************************************************************************
271 * Backlight
272 ******************************************************************************/
273 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
274 static struct pwm_lookup palm27x_pwm_lookup[] = {
275 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 3500 * 1024,
276 PWM_POLARITY_NORMAL),
277 };
278
279 static int palm_bl_power;
280 static int palm_lcd_power;
281
palm27x_backlight_init(struct device * dev)282 static int palm27x_backlight_init(struct device *dev)
283 {
284 int ret;
285
286 ret = gpio_request(palm_bl_power, "BL POWER");
287 if (ret)
288 goto err;
289 ret = gpio_direction_output(palm_bl_power, 0);
290 if (ret)
291 goto err2;
292
293 if (gpio_is_valid(palm_lcd_power)) {
294 ret = gpio_request(palm_lcd_power, "LCD POWER");
295 if (ret)
296 goto err2;
297 ret = gpio_direction_output(palm_lcd_power, 0);
298 if (ret)
299 goto err3;
300 }
301
302 return 0;
303 err3:
304 gpio_free(palm_lcd_power);
305 err2:
306 gpio_free(palm_bl_power);
307 err:
308 return ret;
309 }
310
palm27x_backlight_notify(struct device * dev,int brightness)311 static int palm27x_backlight_notify(struct device *dev, int brightness)
312 {
313 gpio_set_value(palm_bl_power, brightness);
314 if (gpio_is_valid(palm_lcd_power))
315 gpio_set_value(palm_lcd_power, brightness);
316 return brightness;
317 }
318
palm27x_backlight_exit(struct device * dev)319 static void palm27x_backlight_exit(struct device *dev)
320 {
321 gpio_free(palm_bl_power);
322 if (gpio_is_valid(palm_lcd_power))
323 gpio_free(palm_lcd_power);
324 }
325
326 static struct platform_pwm_backlight_data palm27x_backlight_data = {
327 .max_brightness = 0xfe,
328 .dft_brightness = 0x7e,
329 .enable_gpio = -1,
330 .init = palm27x_backlight_init,
331 .notify = palm27x_backlight_notify,
332 .exit = palm27x_backlight_exit,
333 };
334
335 static struct platform_device palm27x_backlight = {
336 .name = "pwm-backlight",
337 .dev = {
338 .parent = &pxa27x_device_pwm0.dev,
339 .platform_data = &palm27x_backlight_data,
340 },
341 };
342
palm27x_pwm_init(int bl,int lcd)343 void __init palm27x_pwm_init(int bl, int lcd)
344 {
345 palm_bl_power = bl;
346 palm_lcd_power = lcd;
347 pwm_add_table(palm27x_pwm_lookup, ARRAY_SIZE(palm27x_pwm_lookup));
348 platform_device_register(&palm27x_backlight);
349 }
350 #endif
351
352 /******************************************************************************
353 * Power supply
354 ******************************************************************************/
355 #if defined(CONFIG_PDA_POWER) || defined(CONFIG_PDA_POWER_MODULE)
356 static int palm_ac_state;
357 static int palm_usb_state;
358
palm27x_power_supply_init(struct device * dev)359 static int palm27x_power_supply_init(struct device *dev)
360 {
361 int ret;
362
363 ret = gpio_request(palm_ac_state, "AC state");
364 if (ret)
365 goto err1;
366 ret = gpio_direction_input(palm_ac_state);
367 if (ret)
368 goto err2;
369
370 if (gpio_is_valid(palm_usb_state)) {
371 ret = gpio_request(palm_usb_state, "USB state");
372 if (ret)
373 goto err2;
374 ret = gpio_direction_input(palm_usb_state);
375 if (ret)
376 goto err3;
377 }
378
379 return 0;
380 err3:
381 gpio_free(palm_usb_state);
382 err2:
383 gpio_free(palm_ac_state);
384 err1:
385 return ret;
386 }
387
palm27x_power_supply_exit(struct device * dev)388 static void palm27x_power_supply_exit(struct device *dev)
389 {
390 gpio_free(palm_usb_state);
391 gpio_free(palm_ac_state);
392 }
393
palm27x_is_ac_online(void)394 static int palm27x_is_ac_online(void)
395 {
396 return gpio_get_value(palm_ac_state);
397 }
398
palm27x_is_usb_online(void)399 static int palm27x_is_usb_online(void)
400 {
401 return !gpio_get_value(palm_usb_state);
402 }
403 static char *palm27x_supplicants[] = {
404 "main-battery",
405 };
406
407 static struct pda_power_pdata palm27x_ps_info = {
408 .init = palm27x_power_supply_init,
409 .exit = palm27x_power_supply_exit,
410 .is_ac_online = palm27x_is_ac_online,
411 .is_usb_online = palm27x_is_usb_online,
412 .supplied_to = palm27x_supplicants,
413 .num_supplicants = ARRAY_SIZE(palm27x_supplicants),
414 };
415
416 static struct platform_device palm27x_power_supply = {
417 .name = "pda-power",
418 .id = -1,
419 .dev = {
420 .platform_data = &palm27x_ps_info,
421 },
422 };
423
palm27x_power_init(int ac,int usb)424 void __init palm27x_power_init(int ac, int usb)
425 {
426 palm_ac_state = ac;
427 palm_usb_state = usb;
428 platform_device_register(&palm27x_power_supply);
429 }
430 #endif
431
432 /******************************************************************************
433 * Core power regulator
434 ******************************************************************************/
435 #if defined(CONFIG_REGULATOR_MAX1586) || \
436 defined(CONFIG_REGULATOR_MAX1586_MODULE)
437 static struct regulator_consumer_supply palm27x_max1587a_consumers[] = {
438 REGULATOR_SUPPLY("vcc_core", NULL),
439 };
440
441 static struct regulator_init_data palm27x_max1587a_v3_info = {
442 .constraints = {
443 .name = "vcc_core range",
444 .min_uV = 900000,
445 .max_uV = 1705000,
446 .always_on = 1,
447 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
448 },
449 .consumer_supplies = palm27x_max1587a_consumers,
450 .num_consumer_supplies = ARRAY_SIZE(palm27x_max1587a_consumers),
451 };
452
453 static struct max1586_subdev_data palm27x_max1587a_subdevs[] = {
454 {
455 .name = "vcc_core",
456 .id = MAX1586_V3,
457 .platform_data = &palm27x_max1587a_v3_info,
458 }
459 };
460
461 static struct max1586_platform_data palm27x_max1587a_info = {
462 .subdevs = palm27x_max1587a_subdevs,
463 .num_subdevs = ARRAY_SIZE(palm27x_max1587a_subdevs),
464 .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
465 };
466
467 static struct i2c_board_info __initdata palm27x_pi2c_board_info[] = {
468 {
469 I2C_BOARD_INFO("max1586", 0x14),
470 .platform_data = &palm27x_max1587a_info,
471 },
472 };
473
474 static struct i2c_pxa_platform_data palm27x_i2c_power_info = {
475 .use_pio = 1,
476 };
477
palm27x_pmic_init(void)478 void __init palm27x_pmic_init(void)
479 {
480 i2c_register_board_info(1, ARRAY_AND_SIZE(palm27x_pi2c_board_info));
481 pxa27x_set_i2c_power_info(&palm27x_i2c_power_info);
482 }
483 #endif
484