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palm27x.c
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1 /*
2  * Common code for Palm LD, T5, TX, Z72
3  *
4  * Copyright (C) 2010-2011 Marek Vasut <[email protected]>
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 <linux/platform_data/mmc-pxamci.h>
33 #include <linux/platform_data/video-pxafb.h>
34 #include <linux/platform_data/irda-pxaficp.h>
35 #include <mach/udc.h>
36 #include <linux/platform_data/asoc-palm27x.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 
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)
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;
138 static void palm27x_lcd_ctl(int on, struct fb_var_screeninfo *info)
139 {
140  gpio_set_value(palm27x_lcd_power, on);
141 }
142 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
388 static int palm27x_is_ac_online(void)
389 {
390  return gpio_get_value(palm_ac_state);
391 }
392 
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 
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  REGULATOR_SUPPLY("vcc_core", NULL),
433 };
434 
435 static struct regulator_init_data palm27x_max1587a_v3_info = {
436  .constraints = {
437  .name = "vcc_core range",
438  .min_uV = 900000,
439  .max_uV = 1705000,
440  .always_on = 1,
441  .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
442  },
443  .consumer_supplies = palm27x_max1587a_consumers,
444  .num_consumer_supplies = ARRAY_SIZE(palm27x_max1587a_consumers),
445 };
446 
447 static struct max1586_subdev_data palm27x_max1587a_subdevs[] = {
448  {
449  .name = "vcc_core",
450  .id = MAX1586_V3,
451  .platform_data = &palm27x_max1587a_v3_info,
452  }
453 };
454 
455 static struct max1586_platform_data palm27x_max1587a_info = {
456  .subdevs = palm27x_max1587a_subdevs,
457  .num_subdevs = ARRAY_SIZE(palm27x_max1587a_subdevs),
458  .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
459 };
460 
461 static struct i2c_board_info __initdata palm27x_pi2c_board_info[] = {
462  {
463  I2C_BOARD_INFO("max1586", 0x14),
464  .platform_data = &palm27x_max1587a_info,
465  },
466 };
467 
468 static struct i2c_pxa_platform_data palm27x_i2c_power_info = {
469  .use_pio = 1,
470 };
471 
472 void __init palm27x_pmic_init(void)
473 {
474  i2c_register_board_info(1, ARRAY_AND_SIZE(palm27x_pi2c_board_info));
475  pxa27x_set_i2c_power_info(&palm27x_i2c_power_info);
476 }
477 #endif
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