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