arch/arm/mach-pxa/hx4700.c

   1 /*
   2  * Support for HP iPAQ hx4700 PDAs.
   3  *
   4  * Copyright (c) 2008-2009 Philipp Zabel
   5  *
   6  * Based on code:
   7  *    Copyright (c) 2004 Hewlett-Packard Company.
   8  *    Copyright (c) 2005 SDG Systems, LLC
   9  *    Copyright (c) 2006 Anton Vorontsov <cbou@mail.ru>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/delay.h>
  21 #include <linux/fb.h>
  22 #include <linux/gpio.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/input.h>
  25 #include <linux/input/navpoint.h>
  26 #include <linux/lcd.h>
  27 #include <linux/mfd/htc-egpio.h>
  28 #include <linux/mfd/asic3.h>
  29 #include <linux/mtd/physmap.h>
  30 #include <linux/pda_power.h>
  31 #include <linux/pwm.h>
  32 #include <linux/pwm_backlight.h>
  33 #include <linux/regulator/driver.h>
  34 #include <linux/regulator/gpio-regulator.h>
  35 #include <linux/regulator/machine.h>
  36 #include <linux/regulator/max1586.h>
  37 #include <linux/spi/ads7846.h>
  38 #include <linux/spi/spi.h>
  39 #include <linux/spi/pxa2xx_spi.h>
  40 #include <linux/usb/gpio_vbus.h>
  41 #include <linux/i2c/pxa-i2c.h>
  42
  43 #include <mach/hardware.h>
  44 #include <asm/mach-types.h>
  45 #include <asm/mach/arch.h>
  46
  47 #include <mach/pxa27x.h>
  48 #include <mach/hx4700.h>
  49 #include <linux/platform_data/irda-pxaficp.h>
  50
  51 #include <sound/ak4641.h>
  52 #include <video/platform_lcd.h>
  53 #include <video/w100fb.h>
  54
  55 #include "devices.h"
  56 #include "generic.h"
  57
  58 /* Physical address space information */
  59
  60 #define ATI_W3220_PHYS  PXA_CS2_PHYS /* ATI Imageon 3220 Graphics */
  61 #define ASIC3_PHYS      PXA_CS3_PHYS
  62 #define ASIC3_SD_PHYS   (PXA_CS3_PHYS + 0x02000000)
  63
  64 static unsigned long hx4700_pin_config[] __initdata = {
  65
  66         /* SDRAM and Static Memory I/O Signals */
  67         GPIO20_nSDCS_2,
  68         GPIO21_nSDCS_3,
  69         GPIO15_nCS_1,
  70         GPIO78_nCS_2,   /* W3220 */
  71         GPIO79_nCS_3,   /* ASIC3 */
  72         GPIO80_nCS_4,
  73         GPIO33_nCS_5,   /* EGPIO, WLAN */
  74
  75         /* PC CARD */
  76         GPIO48_nPOE,
  77         GPIO49_nPWE,
  78         GPIO50_nPIOR,
  79         GPIO51_nPIOW,
  80         GPIO54_nPCE_2,
  81         GPIO55_nPREG,
  82         GPIO56_nPWAIT,
  83         GPIO57_nIOIS16,
  84         GPIO85_nPCE_1,
  85         GPIO104_PSKTSEL,
  86
  87         /* I2C */
  88         GPIO117_I2C_SCL,
  89         GPIO118_I2C_SDA,
  90
  91         /* FFUART (RS-232) */
  92         GPIO34_FFUART_RXD,
  93         GPIO35_FFUART_CTS,
  94         GPIO36_FFUART_DCD,
  95         GPIO37_FFUART_DSR,
  96         GPIO38_FFUART_RI,
  97         GPIO39_FFUART_TXD,
  98         GPIO40_FFUART_DTR,
  99         GPIO41_FFUART_RTS,
 100
 101         /* BTUART */
 102         GPIO42_BTUART_RXD,
 103         GPIO43_BTUART_TXD_LPM_LOW,
 104         GPIO44_BTUART_CTS,
 105         GPIO45_BTUART_RTS_LPM_LOW,
 106
 107         /* STUART (IRDA) */
 108         GPIO46_STUART_RXD,
 109         GPIO47_STUART_TXD,
 110
 111         /* PWM 1 (Backlight) */
 112         GPIO17_PWM1_OUT,
 113
 114         /* I2S */
 115         GPIO28_I2S_BITCLK_OUT,
 116         GPIO29_I2S_SDATA_IN,
 117         GPIO30_I2S_SDATA_OUT,
 118         GPIO31_I2S_SYNC,
 119         GPIO113_I2S_SYSCLK,
 120
 121         /* SSP 1 (NavPoint) */
 122         GPIO23_SSP1_SCLK_IN,
 123         GPIO24_SSP1_SFRM,
 124         GPIO25_SSP1_TXD,
 125         GPIO26_SSP1_RXD,
 126
 127         /* SSP 2 (TSC2046) */
 128         GPIO19_SSP2_SCLK,
 129         GPIO86_SSP2_RXD,
 130         GPIO87_SSP2_TXD,
 131         GPIO88_GPIO | MFP_LPM_DRIVE_HIGH,       /* TSC2046_CS */
 132
 133         /* BQ24022 Regulator */
 134         GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT,      /* BQ24022_nCHARGE_EN */
 135         GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT,      /* BQ24022_ISET2 */
 136
 137         /* HX4700 specific input GPIOs */
 138         GPIO12_GPIO | WAKEUP_ON_EDGE_RISE,      /* ASIC3_IRQ */
 139         GPIO13_GPIO,    /* W3220_IRQ */
 140         GPIO14_GPIO,    /* nWLAN_IRQ */
 141
 142         /* HX4700 specific output GPIOs */
 143         GPIO61_GPIO | MFP_LPM_DRIVE_HIGH,       /* W3220_nRESET */
 144         GPIO71_GPIO | MFP_LPM_DRIVE_HIGH,       /* ASIC3_nRESET */
 145         GPIO81_GPIO | MFP_LPM_DRIVE_HIGH,       /* CPU_GP_nRESET */
 146         GPIO116_GPIO | MFP_LPM_DRIVE_HIGH,      /* CPU_HW_nRESET */
 147         GPIO102_GPIO | MFP_LPM_DRIVE_LOW,       /* SYNAPTICS_POWER_ON */
 148
 149         GPIO10_GPIO,    /* GSM_IRQ */
 150         GPIO13_GPIO,    /* CPLD_IRQ */
 151         GPIO107_GPIO,   /* DS1WM_IRQ */
 152         GPIO108_GPIO,   /* GSM_READY */
 153         GPIO58_GPIO,    /* TSC2046_nPENIRQ */
 154         GPIO66_GPIO,    /* nSDIO_IRQ */
 155 };
 156
 157 /*
 158  * IRDA
 159  */
 160
 161 static struct pxaficp_platform_data ficp_info = {
 162         .gpio_pwdown            = GPIO105_HX4700_nIR_ON,
 163         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 164 };
 165
 166 /*
 167  * GPIO Keys
 168  */
 169
 170 #define INIT_KEY(_code, _gpio, _active_low, _desc)      \
 171         {                                               \
 172                 .code       = KEY_##_code,              \
 173                 .gpio       = _gpio,                    \
 174                 .active_low = _active_low,              \
 175                 .desc       = _desc,                    \
 176                 .type       = EV_KEY,                   \
 177                 .wakeup     = 1,                        \
 178         }
 179
 180 static struct gpio_keys_button gpio_keys_buttons[] = {
 181         INIT_KEY(POWER,       GPIO0_HX4700_nKEY_POWER,   1, "Power button"),
 182         INIT_KEY(MAIL,        GPIO94_HX4700_KEY_MAIL,    0, "Mail button"),
 183         INIT_KEY(ADDRESSBOOK, GPIO99_HX4700_KEY_CONTACTS,0, "Contacts button"),
 184         INIT_KEY(RECORD,      GPIOD6_nKEY_RECORD,        1, "Record button"),
 185         INIT_KEY(CALENDAR,    GPIOD1_nKEY_CALENDAR,      1, "Calendar button"),
 186         INIT_KEY(HOMEPAGE,    GPIOD3_nKEY_HOME,          1, "Home button"),
 187 };
 188
 189 static struct gpio_keys_platform_data gpio_keys_data = {
 190         .buttons = gpio_keys_buttons,
 191         .nbuttons = ARRAY_SIZE(gpio_keys_buttons),
 192 };
 193
 194 static struct platform_device gpio_keys = {
 195         .name = "gpio-keys",
 196         .dev  = {
 197                 .platform_data = &gpio_keys_data,
 198         },
 199         .id   = -1,
 200 };
 201
 202 /*
 203  * Synaptics NavPoint connected to SSP1
 204  */
 205
 206 static struct navpoint_platform_data navpoint_platform_data = {
 207         .port   = 1,
 208         .gpio   = GPIO102_HX4700_SYNAPTICS_POWER_ON,
 209 };
 210
 211 static struct platform_device navpoint = {
 212         .name   = "navpoint",
 213         .id     = -1,
 214         .dev = {
 215                 .platform_data = &navpoint_platform_data,
 216         },
 217 };
 218
 219 /*
 220  * ASIC3
 221  */
 222
 223 static u16 asic3_gpio_config[] = {
 224         /* ASIC3 GPIO banks A and B along with some of C and D
 225            implement the buffering for the CF slot. */
 226         ASIC3_CONFIG_GPIO(0, 1, 1, 0),
 227         ASIC3_CONFIG_GPIO(1, 1, 1, 0),
 228         ASIC3_CONFIG_GPIO(2, 1, 1, 0),
 229         ASIC3_CONFIG_GPIO(3, 1, 1, 0),
 230         ASIC3_CONFIG_GPIO(4, 1, 1, 0),
 231         ASIC3_CONFIG_GPIO(5, 1, 1, 0),
 232         ASIC3_CONFIG_GPIO(6, 1, 1, 0),
 233         ASIC3_CONFIG_GPIO(7, 1, 1, 0),
 234         ASIC3_CONFIG_GPIO(8, 1, 1, 0),
 235         ASIC3_CONFIG_GPIO(9, 1, 1, 0),
 236         ASIC3_CONFIG_GPIO(10, 1, 1, 0),
 237         ASIC3_CONFIG_GPIO(11, 1, 1, 0),
 238         ASIC3_CONFIG_GPIO(12, 1, 1, 0),
 239         ASIC3_CONFIG_GPIO(13, 1, 1, 0),
 240         ASIC3_CONFIG_GPIO(14, 1, 1, 0),
 241         ASIC3_CONFIG_GPIO(15, 1, 1, 0),
 242
 243         ASIC3_CONFIG_GPIO(16, 1, 1, 0),
 244         ASIC3_CONFIG_GPIO(17, 1, 1, 0),
 245         ASIC3_CONFIG_GPIO(18, 1, 1, 0),
 246         ASIC3_CONFIG_GPIO(19, 1, 1, 0),
 247         ASIC3_CONFIG_GPIO(20, 1, 1, 0),
 248         ASIC3_CONFIG_GPIO(21, 1, 1, 0),
 249         ASIC3_CONFIG_GPIO(22, 1, 1, 0),
 250         ASIC3_CONFIG_GPIO(23, 1, 1, 0),
 251         ASIC3_CONFIG_GPIO(24, 1, 1, 0),
 252         ASIC3_CONFIG_GPIO(25, 1, 1, 0),
 253         ASIC3_CONFIG_GPIO(26, 1, 1, 0),
 254         ASIC3_CONFIG_GPIO(27, 1, 1, 0),
 255         ASIC3_CONFIG_GPIO(28, 1, 1, 0),
 256         ASIC3_CONFIG_GPIO(29, 1, 1, 0),
 257         ASIC3_CONFIG_GPIO(30, 1, 1, 0),
 258         ASIC3_CONFIG_GPIO(31, 1, 1, 0),
 259
 260         /* GPIOC - CF, LEDs, SD */
 261         ASIC3_GPIOC0_LED0,              /* red */
 262         ASIC3_GPIOC1_LED1,              /* green */
 263         ASIC3_GPIOC2_LED2,              /* blue */
 264         ASIC3_GPIOC5_nCIOW,
 265         ASIC3_GPIOC6_nCIOR,
 266         ASIC3_GPIOC7_nPCE_1,
 267         ASIC3_GPIOC8_nPCE_2,
 268         ASIC3_GPIOC9_nPOE,
 269         ASIC3_GPIOC10_nPWE,
 270         ASIC3_GPIOC11_PSKTSEL,
 271         ASIC3_GPIOC12_nPREG,
 272         ASIC3_GPIOC13_nPWAIT,
 273         ASIC3_GPIOC14_nPIOIS16,
 274         ASIC3_GPIOC15_nPIOR,
 275
 276         /* GPIOD: input GPIOs, CF */
 277         ASIC3_GPIOD4_CF_nCD,
 278         ASIC3_GPIOD11_nCIOIS16,
 279         ASIC3_GPIOD12_nCWAIT,
 280         ASIC3_GPIOD15_nPIOW,
 281 };
 282
 283 static struct asic3_led asic3_leds[ASIC3_NUM_LEDS] = {
 284         [0] = {
 285                 .name = "hx4700:amber",
 286                 .default_trigger = "ds2760-battery.0-charging-blink-full-solid",
 287         },
 288         [1] = {
 289                 .name = "hx4700:green",
 290                 .default_trigger = "unused",
 291         },
 292         [2] = {
 293                 .name = "hx4700:blue",
 294                 .default_trigger = "hx4700-radio",
 295         },
 296 };
 297
 298 static struct resource asic3_resources[] = {
 299         /* GPIO part */
 300         [0] = DEFINE_RES_MEM(ASIC3_PHYS, ASIC3_MAP_SIZE_16BIT),
 301         [1] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ)),
 302         /* SD part */
 303         [2] = DEFINE_RES_MEM(ASIC3_SD_PHYS, ASIC3_MAP_SIZE_16BIT),
 304         [3] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ)),
 305 };
 306
 307 static struct asic3_platform_data asic3_platform_data = {
 308         .gpio_config     = asic3_gpio_config,
 309         .gpio_config_num = ARRAY_SIZE(asic3_gpio_config),
 310         .irq_base        = IRQ_BOARD_START,
 311         .gpio_base       = HX4700_ASIC3_GPIO_BASE,
 312         .clock_rate      = 4000000,
 313         .leds            = asic3_leds,
 314 };
 315
 316 static struct platform_device asic3 = {
 317         .name          = "asic3",
 318         .id            = -1,
 319         .resource      = asic3_resources,
 320         .num_resources = ARRAY_SIZE(asic3_resources),
 321         .dev = {
 322                 .platform_data = &asic3_platform_data,
 323         },
 324 };
 325
 326 /*
 327  * EGPIO
 328  */
 329
 330 static struct resource egpio_resources[] = {
 331         [0] = DEFINE_RES_MEM(PXA_CS5_PHYS, 0x4),
 332 };
 333
 334 static struct htc_egpio_chip egpio_chips[] = {
 335         [0] = {
 336                 .reg_start = 0,
 337                 .gpio_base = HX4700_EGPIO_BASE,
 338                 .num_gpios = 8,
 339                 .direction = HTC_EGPIO_OUTPUT,
 340         },
 341 };
 342
 343 static struct htc_egpio_platform_data egpio_info = {
 344         .reg_width = 16,
 345         .bus_width = 16,
 346         .chip      = egpio_chips,
 347         .num_chips = ARRAY_SIZE(egpio_chips),
 348 };
 349
 350 static struct platform_device egpio = {
 351         .name          = "htc-egpio",
 352         .id            = -1,
 353         .resource      = egpio_resources,
 354         .num_resources = ARRAY_SIZE(egpio_resources),
 355         .dev = {
 356                 .platform_data = &egpio_info,
 357         },
 358 };
 359
 360 /*
 361  * LCD - Sony display connected to ATI Imageon w3220
 362  */
 363
 364 static void sony_lcd_init(void)
 365 {
 366         gpio_set_value(GPIO84_HX4700_LCD_SQN, 1);
 367         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 368         gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
 369         gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 0);
 370         gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
 371         mdelay(10);
 372         gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
 373         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 374         mdelay(20);
 375
 376         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 1);
 377         mdelay(5);
 378         gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 1);
 379
 380         /* FIXME: init w3220 registers here */
 381
 382         mdelay(5);
 383         gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 1);
 384         mdelay(10);
 385         gpio_set_value(GPIO62_HX4700_LCD_nRESET, 1);
 386         mdelay(10);
 387         gpio_set_value(GPIO59_HX4700_LCD_PC1, 1);
 388         mdelay(10);
 389         gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 1);
 390 }
 391
 392 static void sony_lcd_off(void)
 393 {
 394         gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
 395         gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
 396         mdelay(10);
 397         gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 0);
 398         mdelay(10);
 399         gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
 400         mdelay(10);
 401         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 402 }
 403
 404 #ifdef CONFIG_PM
 405 static void w3220_lcd_suspend(struct w100fb_par *wfb)
 406 {
 407         sony_lcd_off();
 408 }
 409
 410 static void w3220_lcd_resume(struct w100fb_par *wfb)
 411 {
 412         sony_lcd_init();
 413 }
 414 #else
 415 #define w3220_lcd_resume        NULL
 416 #define w3220_lcd_suspend       NULL
 417 #endif
 418
 419 static struct w100_tg_info w3220_tg_info = {
 420         .suspend        = w3220_lcd_suspend,
 421         .resume         = w3220_lcd_resume,
 422 };
 423
 424 /*                               W3220_VGA              QVGA */
 425 static struct w100_gen_regs w3220_regs = {
 426         .lcd_format =        0x00000003,
 427         .lcdd_cntl1 =        0x00000000,
 428         .lcdd_cntl2 =        0x0003ffff,
 429         .genlcd_cntl1 =      0x00abf003,        /* 0x00fff003 */
 430         .genlcd_cntl2 =      0x00000003,
 431         .genlcd_cntl3 =      0x000102aa,
 432 };
 433
 434 static struct w100_mode w3220_modes[] = {
 435 {
 436         .xres           = 480,
 437         .yres           = 640,
 438         .left_margin    = 15,
 439         .right_margin   = 16,
 440         .upper_margin   = 8,
 441         .lower_margin   = 7,
 442         .crtc_ss        = 0x00000000,
 443         .crtc_ls        = 0xa1ff01f9,   /* 0x21ff01f9 */
 444         .crtc_gs        = 0xc0000000,   /* 0x40000000 */
 445         .crtc_vpos_gs   = 0x0000028f,
 446         .crtc_ps1_active = 0x00000000,  /* 0x41060010 */
 447         .crtc_rev       = 0,
 448         .crtc_dclk      = 0x80000000,
 449         .crtc_gclk      = 0x040a0104,
 450         .crtc_goe       = 0,
 451         .pll_freq       = 95,
 452         .pixclk_divider = 4,
 453         .pixclk_divider_rotated = 4,
 454         .pixclk_src     = CLK_SRC_PLL,
 455         .sysclk_divider = 0,
 456         .sysclk_src     = CLK_SRC_PLL,
 457 },
 458 {
 459         .xres           = 240,
 460         .yres           = 320,
 461         .left_margin    = 9,
 462         .right_margin   = 8,
 463         .upper_margin   = 5,
 464         .lower_margin   = 4,
 465         .crtc_ss        = 0x80150014,
 466         .crtc_ls        = 0xa0fb00f7,
 467         .crtc_gs        = 0xc0080007,
 468         .crtc_vpos_gs   = 0x00080007,
 469         .crtc_rev       = 0x0000000a,
 470         .crtc_dclk      = 0x81700030,
 471         .crtc_gclk      = 0x8015010f,
 472         .crtc_goe       = 0x00000000,
 473         .pll_freq       = 95,
 474         .pixclk_divider = 4,
 475         .pixclk_divider_rotated = 4,
 476         .pixclk_src     = CLK_SRC_PLL,
 477         .sysclk_divider = 0,
 478         .sysclk_src     = CLK_SRC_PLL,
 479 },
 480 };
 481
 482 struct w100_mem_info w3220_mem_info = {
 483         .ext_cntl        = 0x09640011,
 484         .sdram_mode_reg  = 0x00600021,
 485         .ext_timing_cntl = 0x1a001545,  /* 0x15001545 */
 486         .io_cntl         = 0x7ddd7333,
 487         .size            = 0x1fffff,
 488 };
 489
 490 struct w100_bm_mem_info w3220_bm_mem_info = {
 491         .ext_mem_bw = 0x50413e01,
 492         .offset = 0,
 493         .ext_timing_ctl = 0x00043f7f,
 494         .ext_cntl = 0x00000010,
 495         .mode_reg = 0x00250000,
 496         .io_cntl = 0x0fff0000,
 497         .config = 0x08301480,
 498 };
 499
 500 static struct w100_gpio_regs w3220_gpio_info = {
 501         .init_data1 = 0xdfe00100,       /* GPIO_DATA */
 502         .gpio_dir1  = 0xffff0000,       /* GPIO_CNTL1 */
 503         .gpio_oe1   = 0x00000000,       /* GPIO_CNTL2 */
 504         .init_data2 = 0x00000000,       /* GPIO_DATA2 */
 505         .gpio_dir2  = 0x00000000,       /* GPIO_CNTL3 */
 506         .gpio_oe2   = 0x00000000,       /* GPIO_CNTL4 */
 507 };
 508
 509 static struct w100fb_mach_info w3220_info = {
 510         .tg        = &w3220_tg_info,
 511         .mem       = &w3220_mem_info,
 512         .bm_mem    = &w3220_bm_mem_info,
 513         .gpio      = &w3220_gpio_info,
 514         .regs      = &w3220_regs,
 515         .modelist  = w3220_modes,
 516         .num_modes = 2,
 517         .xtal_freq = 16000000,
 518 };
 519
 520 static struct resource w3220_resources[] = {
 521         [0] = DEFINE_RES_MEM(ATI_W3220_PHYS, SZ_16M),
 522 };
 523
 524 static struct platform_device w3220 = {
 525         .name   = "w100fb",
 526         .id     = -1,
 527         .dev    = {
 528                 .platform_data = &w3220_info,
 529         },
 530         .num_resources = ARRAY_SIZE(w3220_resources),
 531         .resource      = w3220_resources,
 532 };
 533
 534 static void hx4700_lcd_set_power(struct plat_lcd_data *pd, unsigned int power)
 535 {
 536         if (power)
 537                 sony_lcd_init();
 538         else
 539                 sony_lcd_off();
 540 }
 541
 542 static struct plat_lcd_data hx4700_lcd_data = {
 543         .set_power = hx4700_lcd_set_power,
 544 };
 545
 546 static struct platform_device hx4700_lcd = {
 547         .name = "platform-lcd",
 548         .id   = -1,
 549         .dev  = {
 550                 .platform_data = &hx4700_lcd_data,
 551                 .parent        = &w3220.dev,
 552         },
 553 };
 554
 555 /*
 556  * Backlight
 557  */
 558
 559 static struct platform_pwm_backlight_data backlight_data = {
 560         .pwm_id         = -1,   /* Superseded by pwm_lookup */
 561         .max_brightness = 200,
 562         .dft_brightness = 100,
 563         .pwm_period_ns  = 30923,
 564         .enable_gpio    = -1,
 565 };
 566
 567 static struct platform_device backlight = {
 568         .name = "pwm-backlight",
 569         .id   = -1,
 570         .dev  = {
 571                 .parent        = &pxa27x_device_pwm1.dev,
 572                 .platform_data = &backlight_data,
 573         },
 574 };
 575
 576 static struct pwm_lookup hx4700_pwm_lookup[] = {
 577         PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight", NULL),
 578 };
 579
 580 /*
 581  * USB "Transceiver"
 582  */
 583
 584 static struct gpio_vbus_mach_info gpio_vbus_info = {
 585         .gpio_pullup        = GPIO76_HX4700_USBC_PUEN,
 586         .gpio_vbus          = GPIOD14_nUSBC_DETECT,
 587         .gpio_vbus_inverted = 1,
 588 };
 589
 590 static struct platform_device gpio_vbus = {
 591         .name          = "gpio-vbus",
 592         .id            = -1,
 593         .dev = {
 594                 .platform_data = &gpio_vbus_info,
 595         },
 596 };
 597
 598 /*
 599  * Touchscreen - TSC2046 connected to SSP2
 600  */
 601
 602 static const struct ads7846_platform_data tsc2046_info = {
 603         .model            = 7846,
 604         .vref_delay_usecs = 100,
 605         .pressure_max     = 1024,
 606         .debounce_max     = 10,
 607         .debounce_tol     = 3,
 608         .debounce_rep     = 1,
 609         .gpio_pendown     = GPIO58_HX4700_TSC2046_nPENIRQ,
 610 };
 611
 612 static struct pxa2xx_spi_chip tsc2046_chip = {
 613         .tx_threshold = 1,
 614         .rx_threshold = 2,
 615         .timeout      = 64,
 616         .gpio_cs      = GPIO88_HX4700_TSC2046_CS,
 617 };
 618
 619 static struct spi_board_info tsc2046_board_info[] __initdata = {
 620         {
 621                 .modalias        = "ads7846",
 622                 .bus_num         = 2,
 623                 .max_speed_hz    = 2600000, /* 100 kHz sample rate */
 624                 .irq             = PXA_GPIO_TO_IRQ(GPIO58_HX4700_TSC2046_nPENIRQ),
 625                 .platform_data   = &tsc2046_info,
 626                 .controller_data = &tsc2046_chip,
 627         },
 628 };
 629
 630 static struct pxa2xx_spi_master pxa_ssp2_master_info = {
 631         .num_chipselect = 1,
 632         .clock_enable   = CKEN_SSP2,
 633         .enable_dma     = 1,
 634 };
 635
 636 /*
 637  * External power
 638  */
 639
 640 static int power_supply_init(struct device *dev)
 641 {
 642         return gpio_request(GPIOD9_nAC_IN, "AC charger detect");
 643 }
 644
 645 static int hx4700_is_ac_online(void)
 646 {
 647         return !gpio_get_value(GPIOD9_nAC_IN);
 648 }
 649
 650 static void power_supply_exit(struct device *dev)
 651 {
 652         gpio_free(GPIOD9_nAC_IN);
 653 }
 654
 655 static char *hx4700_supplicants[] = {
 656         "ds2760-battery.0", "backup-battery"
 657 };
 658
 659 static struct pda_power_pdata power_supply_info = {
 660         .init            = power_supply_init,
 661         .is_ac_online    = hx4700_is_ac_online,
 662         .exit            = power_supply_exit,
 663         .supplied_to     = hx4700_supplicants,
 664         .num_supplicants = ARRAY_SIZE(hx4700_supplicants),
 665 };
 666
 667 static struct resource power_supply_resources[] = {
 668         [0] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN), 1, "ac",
 669                 IORESOURCE_IRQ |
 670                 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
 671         [1] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT), 1, "usb",
 672                 IORESOURCE_IRQ |
 673                 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
 674 };
 675
 676 static struct platform_device power_supply = {
 677         .name = "pda-power",
 678         .id   = -1,
 679         .dev  = {
 680                 .platform_data = &power_supply_info,
 681         },
 682         .resource      = power_supply_resources,
 683         .num_resources = ARRAY_SIZE(power_supply_resources),
 684 };
 685
 686 /*
 687  * Battery charger
 688  */
 689
 690 static struct regulator_consumer_supply bq24022_consumers[] = {
 691         REGULATOR_SUPPLY("vbus_draw", NULL),
 692         REGULATOR_SUPPLY("ac_draw", NULL),
 693 };
 694
 695 static struct regulator_init_data bq24022_init_data = {
 696         .constraints = {
 697                 .max_uA         = 500000,
 698                 .valid_ops_mask = REGULATOR_CHANGE_CURRENT|REGULATOR_CHANGE_STATUS,
 699         },
 700         .num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
 701         .consumer_supplies      = bq24022_consumers,
 702 };
 703
 704 static struct gpio bq24022_gpios[] = {
 705         { GPIO96_HX4700_BQ24022_ISET2, GPIOF_OUT_INIT_LOW, "bq24022_iset2" },
 706 };
 707
 708 static struct gpio_regulator_state bq24022_states[] = {
 709         { .value = 100000, .gpios = (0 << 0) },
 710         { .value = 500000, .gpios = (1 << 0) },
 711 };
 712
 713 static struct gpio_regulator_config bq24022_info = {
 714         .supply_name = "bq24022",
 715
 716         .enable_gpio = GPIO72_HX4700_BQ24022_nCHARGE_EN,
 717         .enable_high = 0,
 718         .enabled_at_boot = 0,
 719
 720         .gpios = bq24022_gpios,
 721         .nr_gpios = ARRAY_SIZE(bq24022_gpios),
 722
 723         .states = bq24022_states,
 724         .nr_states = ARRAY_SIZE(bq24022_states),
 725
 726         .type = REGULATOR_CURRENT,
 727         .init_data = &bq24022_init_data,
 728 };
 729
 730 static struct platform_device bq24022 = {
 731         .name = "gpio-regulator",
 732         .id   = -1,
 733         .dev  = {
 734                 .platform_data = &bq24022_info,
 735         },
 736 };
 737
 738 /*
 739  * StrataFlash
 740  */
 741
 742 static void hx4700_set_vpp(struct platform_device *pdev, int vpp)
 743 {
 744         gpio_set_value(GPIO91_HX4700_FLASH_VPEN, vpp);
 745 }
 746
 747 static struct resource strataflash_resource[] = {
 748         [0] = DEFINE_RES_MEM(PXA_CS0_PHYS, SZ_64M),
 749         [1] = DEFINE_RES_MEM(PXA_CS0_PHYS + SZ_64M, SZ_64M),
 750 };
 751
 752 static struct physmap_flash_data strataflash_data = {
 753         .width = 4,
 754         .set_vpp = hx4700_set_vpp,
 755 };
 756
 757 static struct platform_device strataflash = {
 758         .name          = "physmap-flash",
 759         .id            = -1,
 760         .resource      = strataflash_resource,
 761         .num_resources = ARRAY_SIZE(strataflash_resource),
 762         .dev = {
 763                 .platform_data = &strataflash_data,
 764         },
 765 };
 766
 767 /*
 768  * Maxim MAX1587A on PI2C
 769  */
 770
 771 static struct regulator_consumer_supply max1587a_consumer =
 772         REGULATOR_SUPPLY("vcc_core", NULL);
 773
 774 static struct regulator_init_data max1587a_v3_info = {
 775         .constraints = {
 776                 .name = "vcc_core range",
 777                 .min_uV =  900000,
 778                 .max_uV = 1705000,
 779                 .always_on = 1,
 780                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 781         },
 782         .num_consumer_supplies = 1,
 783         .consumer_supplies     = &max1587a_consumer,
 784 };
 785
 786 static struct max1586_subdev_data max1587a_subdev = {
 787         .name = "vcc_core",
 788         .id   = MAX1586_V3,
 789         .platform_data = &max1587a_v3_info,
 790 };
 791
 792 static struct max1586_platform_data max1587a_info = {
 793         .num_subdevs = 1,
 794         .subdevs     = &max1587a_subdev,
 795         .v3_gain     = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
 796 };
 797
 798 static struct i2c_board_info __initdata pi2c_board_info[] = {
 799         {
 800                 I2C_BOARD_INFO("max1586", 0x14),
 801                 .platform_data = &max1587a_info,
 802         },
 803 };
 804
 805 /*
 806  * Asahi Kasei AK4641 on I2C
 807  */
 808
 809 static struct ak4641_platform_data ak4641_info = {
 810         .gpio_power = GPIO27_HX4700_CODEC_ON,
 811         .gpio_npdn  = GPIO109_HX4700_CODEC_nPDN,
 812 };
 813
 814 static struct i2c_board_info i2c_board_info[] __initdata = {
 815         {
 816                 I2C_BOARD_INFO("ak4641", 0x12),
 817                 .platform_data = &ak4641_info,
 818         },
 819 };
 820
 821 static struct platform_device audio = {
 822         .name   = "hx4700-audio",
 823         .id     = -1,
 824 };
 825
 826
 827 /*
 828  * Platform devices
 829  */
 830
 831 static struct platform_device *devices[] __initdata = {
 832         &asic3,
 833         &gpio_keys,
 834         &navpoint,
 835         &backlight,
 836         &w3220,
 837         &hx4700_lcd,
 838         &egpio,
 839         &bq24022,
 840         &gpio_vbus,
 841         &power_supply,
 842         &strataflash,
 843         &audio,
 844 };
 845
 846 static struct gpio global_gpios[] = {
 847         { GPIO12_HX4700_ASIC3_IRQ, GPIOF_IN, "ASIC3_IRQ" },
 848         { GPIO13_HX4700_W3220_IRQ, GPIOF_IN, "W3220_IRQ" },
 849         { GPIO14_HX4700_nWLAN_IRQ, GPIOF_IN, "WLAN_IRQ" },
 850         { GPIO59_HX4700_LCD_PC1,          GPIOF_OUT_INIT_HIGH, "LCD_PC1" },
 851         { GPIO62_HX4700_LCD_nRESET,       GPIOF_OUT_INIT_HIGH, "LCD_RESET" },
 852         { GPIO70_HX4700_LCD_SLIN1,        GPIOF_OUT_INIT_HIGH, "LCD_SLIN1" },
 853         { GPIO84_HX4700_LCD_SQN,          GPIOF_OUT_INIT_HIGH, "LCD_SQN" },
 854         { GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
 855         { GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
 856         { GPIO32_HX4700_RS232_ON,         GPIOF_OUT_INIT_HIGH, "RS232_ON" },
 857         { GPIO61_HX4700_W3220_nRESET,     GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
 858         { GPIO71_HX4700_ASIC3_nRESET,     GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
 859         { GPIO81_HX4700_CPU_GP_nRESET,    GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
 860         { GPIO82_HX4700_EUART_RESET,      GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
 861         { GPIO116_HX4700_CPU_HW_nRESET,   GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
 862 };
 863
 864 static void __init hx4700_init(void)
 865 {
 866         int ret;
 867
 868         PCFR = PCFR_GPR_EN | PCFR_OPDE;
 869
 870         pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
 871         gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
 872         ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
 873         if (ret)
 874                 pr_err ("hx4700: Failed to request GPIOs.\n");
 875
 876         pxa_set_ffuart_info(NULL);
 877         pxa_set_btuart_info(NULL);
 878         pxa_set_stuart_info(NULL);
 879
 880         platform_add_devices(devices, ARRAY_SIZE(devices));
 881         pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
 882
 883         pxa_set_ficp_info(&ficp_info);
 884         pxa27x_set_i2c_power_info(NULL);
 885         pxa_set_i2c_info(NULL);
 886         i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
 887         i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
 888         pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
 889         spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
 890
 891         gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 0);
 892         mdelay(10);
 893         gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 1);
 894         mdelay(10);
 895 }
 896
 897 MACHINE_START(H4700, "HP iPAQ HX4700")
 898         .atag_offset  = 0x100,
 899         .map_io       = pxa27x_map_io,
 900         .nr_irqs      = HX4700_NR_IRQS,
 901         .init_irq     = pxa27x_init_irq,
 902         .handle_irq     = pxa27x_handle_irq,
 903         .init_machine = hx4700_init,
 904         .init_time      = pxa_timer_init,
 905         .restart        = pxa_restart,
 906 MACHINE_END