arch/arm/mach-pxa/palm27x.c

   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 <mach/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 <mach/udc.h>
  37 #include <linux/platform_data/asoc-palm27x.h>
  38 #include <mach/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
  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)
  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;
 139 static void palm27x_lcd_ctl(int on, struct fb_var_screeninfo *info)
 140 {
 141         gpio_set_value(palm27x_lcd_power, on);
 142 }
 143
 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
 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
 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
 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
 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
 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
 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
 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
 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
 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
 394 static int palm27x_is_ac_online(void)
 395 {
 396         return gpio_get_value(palm_ac_state);
 397 }
 398
 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
 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
 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