linux/arch/arm/mach-pxa/magician.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Support for HTC Magician PDA phones:
   4 * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
   5 * and T-Mobile MDA Compact.
   6 *
   7 * Copyright (c) 2006-2007 Philipp Zabel
   8 *
   9 * Based on hx4700.c, spitz.c and others.
  10 */
  11
  12#include <linux/kernel.h>
  13#include <linux/init.h>
  14#include <linux/platform_device.h>
  15#include <linux/delay.h>
  16#include <linux/gpio.h>
  17#include <linux/gpio/machine.h>
  18#include <linux/gpio_keys.h>
  19#include <linux/input.h>
  20#include <linux/mfd/htc-pasic3.h>
  21#include <linux/mtd/physmap.h>
  22#include <linux/pda_power.h>
  23#include <linux/platform_data/gpio-htc-egpio.h>
  24#include <linux/pwm.h>
  25#include <linux/pwm_backlight.h>
  26#include <linux/regulator/driver.h>
  27#include <linux/regulator/fixed.h>
  28#include <linux/regulator/gpio-regulator.h>
  29#include <linux/regulator/machine.h>
  30#include <linux/platform_data/i2c-pxa.h>
  31
  32#include <mach/hardware.h>
  33#include <asm/mach-types.h>
  34#include <asm/mach/arch.h>
  35#include <asm/system_info.h>
  36
  37#include "pxa27x.h"
  38#include <mach/magician.h>
  39#include <linux/platform_data/video-pxafb.h>
  40#include <linux/platform_data/mmc-pxamci.h>
  41#include <linux/platform_data/irda-pxaficp.h>
  42#include <linux/platform_data/usb-ohci-pxa27x.h>
  43
  44#include <linux/regulator/max1586.h>
  45
  46#include <linux/platform_data/pxa2xx_udc.h>
  47
  48#include "udc.h"
  49#include "pxa27x-udc.h"
  50#include "devices.h"
  51#include "generic.h"
  52
  53#include <linux/spi/spi.h>
  54#include <linux/spi/pxa2xx_spi.h>
  55#include <linux/spi/ads7846.h>
  56
  57static unsigned long magician_pin_config[] __initdata = {
  58
  59        /* SDRAM and Static Memory I/O Signals */
  60        GPIO20_nSDCS_2,
  61        GPIO21_nSDCS_3,
  62        GPIO15_nCS_1,
  63        GPIO78_nCS_2,   /* PASIC3 */
  64        GPIO79_nCS_3,   /* EGPIO CPLD */
  65        GPIO80_nCS_4,
  66        GPIO33_nCS_5,
  67
  68        /* I2C UDA1380 + OV9640 */
  69        GPIO117_I2C_SCL,
  70        GPIO118_I2C_SDA,
  71
  72        /* PWM 0 - LCD backlight */
  73        GPIO16_PWM0_OUT,
  74
  75        /* I2S UDA1380 capture */
  76        GPIO28_I2S_BITCLK_OUT,
  77        GPIO29_I2S_SDATA_IN,
  78        GPIO31_I2S_SYNC,
  79        GPIO113_I2S_SYSCLK,
  80
  81        /* SSP 1 UDA1380 playback */
  82        GPIO23_SSP1_SCLK,
  83        GPIO24_SSP1_SFRM,
  84        GPIO25_SSP1_TXD,
  85
  86        /* SSP 2 TSC2046 touchscreen */
  87        GPIO19_SSP2_SCLK,
  88        MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH),   /* frame as GPIO */
  89        GPIO89_SSP2_TXD,
  90        GPIO88_SSP2_RXD,
  91
  92        /* MMC/SD/SDHC slot */
  93        GPIO32_MMC_CLK,
  94        GPIO92_MMC_DAT_0,
  95        GPIO109_MMC_DAT_1,
  96        GPIO110_MMC_DAT_2,
  97        GPIO111_MMC_DAT_3,
  98        GPIO112_MMC_CMD,
  99
 100        /* LCD */
 101        GPIOxx_LCD_TFT_16BPP,
 102
 103        /* QCI camera interface */
 104        GPIO12_CIF_DD_7,
 105        GPIO17_CIF_DD_6,
 106        GPIO50_CIF_DD_3,
 107        GPIO51_CIF_DD_2,
 108        GPIO52_CIF_DD_4,
 109        GPIO53_CIF_MCLK,
 110        GPIO54_CIF_PCLK,
 111        GPIO55_CIF_DD_1,
 112        GPIO81_CIF_DD_0,
 113        GPIO82_CIF_DD_5,
 114        GPIO84_CIF_FV,
 115        GPIO85_CIF_LV,
 116
 117        /* Magician specific input GPIOs */
 118        GPIO9_GPIO,     /* unknown */
 119        GPIO10_GPIO,    /* GSM_IRQ */
 120        GPIO13_GPIO,    /* CPLD_IRQ */
 121        GPIO107_GPIO,   /* DS1WM_IRQ */
 122        GPIO108_GPIO,   /* GSM_READY */
 123        GPIO115_GPIO,   /* nPEN_IRQ */
 124};
 125
 126/*
 127 * IrDA
 128 */
 129
 130static struct pxaficp_platform_data magician_ficp_info = {
 131        .gpio_pwdown            = GPIO83_MAGICIAN_nIR_EN,
 132        .transceiver_cap        = IR_SIRMODE | IR_OFF,
 133        .gpio_pwdown_inverted   = 0,
 134};
 135
 136/*
 137 * GPIO Keys
 138 */
 139
 140#define INIT_KEY(_code, _gpio, _desc)   \
 141        {                               \
 142                .code   = KEY_##_code,  \
 143                .gpio   = _gpio,        \
 144                .desc   = _desc,        \
 145                .type   = EV_KEY,       \
 146                .wakeup = 1,            \
 147        }
 148
 149static struct gpio_keys_button magician_button_table[] = {
 150        INIT_KEY(POWER,      GPIO0_MAGICIAN_KEY_POWER,      "Power button"),
 151        INIT_KEY(ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    "Hangup button"),
 152        INIT_KEY(F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  "Contacts button"),
 153        INIT_KEY(CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  "Calendar button"),
 154        INIT_KEY(CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    "Camera button"),
 155        INIT_KEY(UP,         GPIO93_MAGICIAN_KEY_UP,        "Up button"),
 156        INIT_KEY(DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      "Down button"),
 157        INIT_KEY(LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      "Left button"),
 158        INIT_KEY(RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     "Right button"),
 159        INIT_KEY(KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     "Action button"),
 160        INIT_KEY(RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    "Record button"),
 161        INIT_KEY(VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   "Volume up"),
 162        INIT_KEY(VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, "Volume down"),
 163        INIT_KEY(PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    "Phone button"),
 164        INIT_KEY(PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  "Headset button"),
 165};
 166
 167static struct gpio_keys_platform_data gpio_keys_data = {
 168        .buttons        = magician_button_table,
 169        .nbuttons       = ARRAY_SIZE(magician_button_table),
 170};
 171
 172static struct platform_device gpio_keys = {
 173        .name   = "gpio-keys",
 174        .dev    = {
 175                .platform_data = &gpio_keys_data,
 176        },
 177        .id     = -1,
 178};
 179
 180/*
 181 * EGPIO (Xilinx CPLD)
 182 *
 183 * 32-bit aligned 8-bit registers
 184 * 16 possible registers (reg windows size), only 7 used:
 185 * 3x output, 1x irq, 3x input
 186 */
 187
 188static struct resource egpio_resources[] = {
 189        [0] = {
 190                .start  = PXA_CS3_PHYS,
 191                .end    = PXA_CS3_PHYS + 0x20 - 1,
 192                .flags  = IORESOURCE_MEM,
 193        },
 194        [1] = {
 195                .start  = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
 196                .end    = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
 197                .flags  = IORESOURCE_IRQ,
 198        },
 199};
 200
 201static struct htc_egpio_chip egpio_chips[] = {
 202        [0] = {
 203                .reg_start      = 0,
 204                .gpio_base      = MAGICIAN_EGPIO(0, 0),
 205                .num_gpios      = 24,
 206                .direction      = HTC_EGPIO_OUTPUT,
 207                /*
 208                 * Depends on modules configuration
 209                 */
 210                .initial_values = 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
 211        },
 212        [1] = {
 213                .reg_start      = 4,
 214                .gpio_base      = MAGICIAN_EGPIO(4, 0),
 215                .num_gpios      = 24,
 216                .direction      = HTC_EGPIO_INPUT,
 217        },
 218};
 219
 220static struct htc_egpio_platform_data egpio_info = {
 221        .reg_width      = 8,
 222        .bus_width      = 32,
 223        .irq_base       = IRQ_BOARD_START,
 224        .num_irqs       = 4,
 225        .ack_register   = 3,
 226        .chip           = egpio_chips,
 227        .num_chips      = ARRAY_SIZE(egpio_chips),
 228};
 229
 230static struct platform_device egpio = {
 231        .name           = "htc-egpio",
 232        .id             = -1,
 233        .resource       = egpio_resources,
 234        .num_resources  = ARRAY_SIZE(egpio_resources),
 235        .dev = {
 236                .platform_data = &egpio_info,
 237        },
 238};
 239
 240/*
 241 * PXAFB LCD - Toppoly TD028STEB1 or Samsung LTP280QV
 242 */
 243
 244static struct pxafb_mode_info toppoly_modes[] = {
 245        {
 246                .pixclock       = 96153,
 247                .bpp            = 16,
 248                .xres           = 240,
 249                .yres           = 320,
 250                .hsync_len      = 11,
 251                .vsync_len      = 3,
 252                .left_margin    = 19,
 253                .upper_margin   = 2,
 254                .right_margin   = 10,
 255                .lower_margin   = 2,
 256                .sync           = 0,
 257        },
 258};
 259
 260static struct pxafb_mode_info samsung_modes[] = {
 261        {
 262                .pixclock       = 226469,
 263                .bpp            = 16,
 264                .xres           = 240,
 265                .yres           = 320,
 266                .hsync_len      = 8,
 267                .vsync_len      = 4,
 268                .left_margin    = 9,
 269                .upper_margin   = 4,
 270                .right_margin   = 9,
 271                .lower_margin   = 4,
 272                .sync   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 273        },
 274};
 275
 276static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
 277{
 278        pr_debug("Toppoly LCD power: %s\n", on ? "on" : "off");
 279
 280        if (on) {
 281                gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
 282                gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
 283                udelay(2000);
 284                gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
 285                udelay(2000);
 286                /* FIXME: enable LCDC here */
 287                udelay(2000);
 288                gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
 289                udelay(2000);
 290                gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
 291        } else {
 292                msleep(15);
 293                gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
 294                udelay(500);
 295                gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
 296                udelay(1000);
 297                gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
 298                gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
 299        }
 300}
 301
 302static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
 303{
 304        pr_debug("Samsung LCD power: %s\n", on ? "on" : "off");
 305
 306        if (on) {
 307                if (system_rev < 3)
 308                        gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
 309                else
 310                        gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
 311                mdelay(6);
 312                gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
 313                mdelay(6);      /* Avdd -> Voff >5ms */
 314                gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
 315                mdelay(16);     /* Voff -> Von >(5+10)ms */
 316                gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
 317        } else {
 318                gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
 319                mdelay(16);
 320                gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
 321                mdelay(6);
 322                gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
 323                mdelay(6);
 324                if (system_rev < 3)
 325                        gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
 326                else
 327                        gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
 328        }
 329}
 330
 331static struct pxafb_mach_info toppoly_info = {
 332        .modes                  = toppoly_modes,
 333        .num_modes              = 1,
 334        .fixed_modes            = 1,
 335        .lcd_conn               = LCD_COLOR_TFT_16BPP,
 336        .pxafb_lcd_power        = toppoly_lcd_power,
 337};
 338
 339static struct pxafb_mach_info samsung_info = {
 340        .modes                  = samsung_modes,
 341        .num_modes              = 1,
 342        .fixed_modes            = 1,
 343        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 344                LCD_ALTERNATE_MAPPING,
 345        .pxafb_lcd_power        = samsung_lcd_power,
 346};
 347
 348/*
 349 * Backlight
 350 */
 351
 352static struct pwm_lookup magician_pwm_lookup[] = {
 353        PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923,
 354                   PWM_POLARITY_NORMAL),
 355};
 356
 357 /*
 358 * fixed regulator for pwm_backlight
 359 */
 360
 361static struct regulator_consumer_supply pwm_backlight_supply[] = {
 362        REGULATOR_SUPPLY("power", "pwm_backlight"),
 363};
 364
 365
 366static struct gpio magician_bl_gpios[] = {
 367        { EGPIO_MAGICIAN_BL_POWER,      GPIOF_DIR_OUT, "Backlight power" },
 368        { EGPIO_MAGICIAN_BL_POWER2,     GPIOF_DIR_OUT, "Backlight power 2" },
 369};
 370
 371static int magician_backlight_init(struct device *dev)
 372{
 373        return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
 374}
 375
 376static int magician_backlight_notify(struct device *dev, int brightness)
 377{
 378        pr_debug("Brightness = %i\n", brightness);
 379        gpio_set_value(EGPIO_MAGICIAN_BL_POWER, brightness);
 380        if (brightness >= 200) {
 381                gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
 382                return brightness - 72;
 383        } else {
 384                gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
 385                return brightness;
 386        }
 387}
 388
 389static void magician_backlight_exit(struct device *dev)
 390{
 391        gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
 392}
 393
 394/*
 395 * LCD PWM backlight (main)
 396 *
 397 * MP1521 frequency should be:
 398 *      100-400 Hz = 2 .5*10^6 - 10 *10^6 ns
 399 */
 400
 401static struct platform_pwm_backlight_data backlight_data = {
 402        .max_brightness = 272,
 403        .dft_brightness = 100,
 404        .init           = magician_backlight_init,
 405        .notify         = magician_backlight_notify,
 406        .exit           = magician_backlight_exit,
 407};
 408
 409static struct platform_device backlight = {
 410        .name   = "pwm-backlight",
 411        .id     = -1,
 412        .dev    = {
 413                .parent         = &pxa27x_device_pwm0.dev,
 414                .platform_data  = &backlight_data,
 415        },
 416};
 417
 418/*
 419 * GPIO LEDs, Phone keys backlight, vibra
 420 */
 421
 422static struct gpio_led gpio_leds[] = {
 423        {
 424                .name = "magician::vibra",
 425                .default_trigger = "none",
 426                .gpio = GPIO22_MAGICIAN_VIBRA_EN,
 427        },
 428        {
 429                .name = "magician::phone_bl",
 430                .default_trigger = "backlight",
 431                .gpio = GPIO103_MAGICIAN_LED_KP,
 432        },
 433};
 434
 435static struct gpio_led_platform_data gpio_led_info = {
 436        .leds = gpio_leds,
 437        .num_leds = ARRAY_SIZE(gpio_leds),
 438};
 439
 440static struct platform_device leds_gpio = {
 441        .name   = "leds-gpio",
 442        .id     = -1,
 443        .dev    = {
 444                .platform_data = &gpio_led_info,
 445        },
 446};
 447
 448/*
 449 * PASIC3 with DS1WM
 450 */
 451
 452static struct resource pasic3_resources[] = {
 453        [0] = {
 454                .start  = PXA_CS2_PHYS,
 455                .end    = PXA_CS2_PHYS + 0x1b,
 456                .flags  = IORESOURCE_MEM,
 457        },
 458        /* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
 459        [1] = {
 460                .start  = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
 461                .end    = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
 462                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 463        }
 464};
 465
 466static struct pasic3_platform_data pasic3_platform_data = {
 467        .clock_rate = 4000000,
 468};
 469
 470static struct platform_device pasic3 = {
 471        .name           = "pasic3",
 472        .id             = -1,
 473        .num_resources  = ARRAY_SIZE(pasic3_resources),
 474        .resource       = pasic3_resources,
 475        .dev = {
 476                .platform_data = &pasic3_platform_data,
 477        },
 478};
 479
 480/*
 481 * PXA UDC
 482 */
 483
 484static void magician_udc_command(int cmd)
 485{
 486        if (cmd == PXA2XX_UDC_CMD_CONNECT)
 487                UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
 488        else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
 489                UP2OCR &= ~(UP2OCR_DPPUE | UP2OCR_DPPUBE);
 490}
 491
 492static struct pxa2xx_udc_mach_info magician_udc_info __initdata = {
 493        .udc_command    = magician_udc_command,
 494        .gpio_pullup    = GPIO27_MAGICIAN_USBC_PUEN,
 495};
 496
 497/*
 498 * USB device VBus detection
 499 */
 500
 501static struct resource gpio_vbus_resource = {
 502        .flags  = IORESOURCE_IRQ,
 503        .start  = IRQ_MAGICIAN_VBUS,
 504        .end    = IRQ_MAGICIAN_VBUS,
 505};
 506
 507static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
 508        .dev_id = "gpio-vbus",
 509        .table = {
 510                /*
 511                 * EGPIO on register 4 index 1, the second EGPIO chip
 512                 * starts at register 4 so this will be at index 1 on that
 513                 * chip.
 514                 */
 515                GPIO_LOOKUP("htc-egpio-1", 1,
 516                            "vbus", GPIO_ACTIVE_HIGH),
 517                GPIO_LOOKUP("gpio-pxa", GPIO27_MAGICIAN_USBC_PUEN,
 518                            "pullup", GPIO_ACTIVE_HIGH),
 519                { },
 520        },
 521};
 522
 523static struct platform_device gpio_vbus = {
 524        .name           = "gpio-vbus",
 525        .id             = -1,
 526        .num_resources  = 1,
 527        .resource       = &gpio_vbus_resource,
 528};
 529
 530/*
 531 * External power
 532 */
 533
 534static int magician_supply_init(struct device *dev)
 535{
 536        int ret = -1;
 537
 538        ret = gpio_request(EGPIO_MAGICIAN_CABLE_TYPE, "Cable is AC charger");
 539        if (ret) {
 540                pr_err("Cannot request AC/USB charger GPIO (%i)\n", ret);
 541                goto err_ac;
 542        }
 543
 544        ret = gpio_request(EGPIO_MAGICIAN_CABLE_INSERTED, "Cable inserted");
 545        if (ret) {
 546                pr_err("Cannot request cable detection GPIO (%i)\n", ret);
 547                goto err_usb;
 548        }
 549
 550        return 0;
 551
 552err_usb:
 553        gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
 554err_ac:
 555        return ret;
 556}
 557
 558static void magician_set_charge(int flags)
 559{
 560        if (flags & PDA_POWER_CHARGE_AC) {
 561                pr_debug("Charging from AC\n");
 562                gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
 563        } else if (flags & PDA_POWER_CHARGE_USB) {
 564                pr_debug("Charging from USB\n");
 565                gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
 566        } else {
 567                pr_debug("Charging disabled\n");
 568                gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 0);
 569        }
 570}
 571
 572static int magician_is_ac_online(void)
 573{
 574        return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
 575                gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE); /* AC=1 */
 576}
 577
 578static int magician_is_usb_online(void)
 579{
 580        return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
 581                (!gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE)); /* USB=0 */
 582}
 583
 584static void magician_supply_exit(struct device *dev)
 585{
 586        gpio_free(EGPIO_MAGICIAN_CABLE_INSERTED);
 587        gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
 588}
 589
 590static char *magician_supplicants[] = {
 591        "ds2760-battery.0", "backup-battery"
 592};
 593
 594static struct pda_power_pdata power_supply_info = {
 595        .init                   = magician_supply_init,
 596        .exit                   = magician_supply_exit,
 597        .is_ac_online           = magician_is_ac_online,
 598        .is_usb_online          = magician_is_usb_online,
 599        .set_charge             = magician_set_charge,
 600        .supplied_to            = magician_supplicants,
 601        .num_supplicants        = ARRAY_SIZE(magician_supplicants),
 602};
 603
 604static struct resource power_supply_resources[] = {
 605        [0] = {
 606                .name   = "ac",
 607                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 608                        IORESOURCE_IRQ_LOWEDGE,
 609                .start  = IRQ_MAGICIAN_VBUS,
 610                .end    = IRQ_MAGICIAN_VBUS,
 611        },
 612        [1] = {
 613                .name   = "usb",
 614                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 615                        IORESOURCE_IRQ_LOWEDGE,
 616                .start  = IRQ_MAGICIAN_VBUS,
 617                .end    = IRQ_MAGICIAN_VBUS,
 618        },
 619};
 620
 621static struct platform_device power_supply = {
 622        .name   = "pda-power",
 623        .id     = -1,
 624        .dev = {
 625                .platform_data = &power_supply_info,
 626        },
 627        .resource       = power_supply_resources,
 628        .num_resources  = ARRAY_SIZE(power_supply_resources),
 629};
 630
 631/*
 632 * Battery charger
 633 */
 634
 635static struct regulator_consumer_supply bq24022_consumers[] = {
 636        REGULATOR_SUPPLY("vbus_draw", NULL),
 637        REGULATOR_SUPPLY("ac_draw", NULL),
 638};
 639
 640static struct regulator_init_data bq24022_init_data = {
 641        .constraints = {
 642                .max_uA         = 500000,
 643                .valid_ops_mask = REGULATOR_CHANGE_CURRENT |
 644                        REGULATOR_CHANGE_STATUS,
 645        },
 646        .num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
 647        .consumer_supplies      = bq24022_consumers,
 648};
 649
 650
 651static enum gpiod_flags bq24022_gpiod_gflags[] = { GPIOD_OUT_LOW };
 652
 653static struct gpio_regulator_state bq24022_states[] = {
 654        { .value = 100000, .gpios = (0 << 0) },
 655        { .value = 500000, .gpios = (1 << 0) },
 656};
 657
 658static struct gpio_regulator_config bq24022_info = {
 659        .supply_name            = "bq24022",
 660
 661        .enabled_at_boot        = 1,
 662
 663        .gflags = bq24022_gpiod_gflags,
 664        .ngpios = ARRAY_SIZE(bq24022_gpiod_gflags),
 665
 666        .states                 = bq24022_states,
 667        .nr_states              = ARRAY_SIZE(bq24022_states),
 668
 669        .type                   = REGULATOR_CURRENT,
 670        .init_data              = &bq24022_init_data,
 671};
 672
 673static struct platform_device bq24022 = {
 674        .name   = "gpio-regulator",
 675        .id     = -1,
 676        .dev    = {
 677                .platform_data = &bq24022_info,
 678        },
 679};
 680
 681static struct gpiod_lookup_table bq24022_gpiod_table = {
 682        .dev_id = "gpio-regulator",
 683        .table = {
 684                GPIO_LOOKUP("gpio-pxa", EGPIO_MAGICIAN_BQ24022_ISET2,
 685                            NULL, GPIO_ACTIVE_HIGH),
 686                GPIO_LOOKUP("gpio-pxa", GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
 687                            "enable", GPIO_ACTIVE_LOW),
 688                { },
 689        },
 690};
 691
 692/*
 693 * fixed regulator for ads7846
 694 */
 695
 696static struct regulator_consumer_supply ads7846_supply =
 697        REGULATOR_SUPPLY("vcc", "spi2.0");
 698
 699static struct regulator_init_data vads7846_regulator = {
 700        .constraints    = {
 701                .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 702        },
 703        .num_consumer_supplies  = 1,
 704        .consumer_supplies      = &ads7846_supply,
 705};
 706
 707static struct fixed_voltage_config vads7846 = {
 708        .supply_name    = "vads7846",
 709        .microvolts     = 3300000, /* probably */
 710        .startup_delay  = 0,
 711        .init_data      = &vads7846_regulator,
 712};
 713
 714static struct platform_device vads7846_device = {
 715        .name   = "reg-fixed-voltage",
 716        .id     = -1,
 717        .dev    = {
 718                .platform_data  = &vads7846,
 719        },
 720};
 721
 722/*
 723 * Vcore regulator MAX1587A
 724 */
 725
 726static struct regulator_consumer_supply magician_max1587a_consumers[] = {
 727        REGULATOR_SUPPLY("vcc_core", NULL),
 728};
 729
 730static struct regulator_init_data magician_max1587a_v3_info = {
 731        .constraints = {
 732                .name           = "vcc_core range",
 733                .min_uV         = 700000,
 734                .max_uV         = 1475000,
 735                .always_on      = 1,
 736                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 737        },
 738        .consumer_supplies      = magician_max1587a_consumers,
 739        .num_consumer_supplies  = ARRAY_SIZE(magician_max1587a_consumers),
 740};
 741
 742static struct max1586_subdev_data magician_max1587a_subdevs[] = {
 743        {
 744                .name           = "vcc_core",
 745                .id             = MAX1586_V3,
 746                .platform_data  = &magician_max1587a_v3_info,
 747        }
 748};
 749
 750static struct max1586_platform_data magician_max1587a_info = {
 751        .subdevs     = magician_max1587a_subdevs,
 752        .num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
 753        /*
 754         * NOTICE measured directly on the PCB (board_id == 0x3a), but
 755         * if R24 is present, it will boost the voltage
 756         * (write 1.475V, get 1.645V and smoke)
 757         */
 758        .v3_gain     = MAX1586_GAIN_NO_R24,
 759};
 760
 761static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
 762        {
 763                I2C_BOARD_INFO("max1586", 0x14),
 764                .platform_data  = &magician_max1587a_info,
 765        },
 766};
 767
 768/*
 769 * MMC/SD
 770 */
 771
 772static int magician_mci_init(struct device *dev,
 773        irq_handler_t detect_irq, void *data)
 774{
 775        return request_irq(IRQ_MAGICIAN_SD, detect_irq, 0,
 776                "mmc card detect", data);
 777}
 778
 779static void magician_mci_exit(struct device *dev, void *data)
 780{
 781        free_irq(IRQ_MAGICIAN_SD, data);
 782}
 783
 784static struct pxamci_platform_data magician_mci_info = {
 785        .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 786        .init                   = magician_mci_init,
 787        .exit                   = magician_mci_exit,
 788        .gpio_card_ro_invert    = 1,
 789};
 790
 791/*
 792 * Write protect on EGPIO register 5 index 4, this is on the second HTC
 793 * EGPIO chip which starts at register 4, so we need offset 8+4=12 on that
 794 * particular chip.
 795 */
 796#define EGPIO_MAGICIAN_nSD_READONLY_OFFSET 12
 797/*
 798 * Power on EGPIO register 2 index 0, so this is on the first HTC EGPIO chip
 799 * starting at register 0 so we need offset 2*8+0 = 16 on that chip.
 800 */
 801#define EGPIO_MAGICIAN_nSD_POWER_OFFSET 16
 802
 803static struct gpiod_lookup_table magician_mci_gpio_table = {
 804        .dev_id = "pxa2xx-mci.0",
 805        .table = {
 806                GPIO_LOOKUP("htc-egpio-1", EGPIO_MAGICIAN_nSD_READONLY_OFFSET,
 807                            "wp", GPIO_ACTIVE_HIGH),
 808                GPIO_LOOKUP("htc-egpio-0", EGPIO_MAGICIAN_nSD_POWER_OFFSET,
 809                            "power", GPIO_ACTIVE_HIGH),
 810                { },
 811        },
 812};
 813
 814/*
 815 * USB OHCI
 816 */
 817
 818static struct pxaohci_platform_data magician_ohci_info = {
 819        .port_mode      = PMM_PERPORT_MODE,
 820        /* port1: CSR Bluetooth, port2: OTG with UDC */
 821        .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
 822        .power_budget   = 0,
 823        .power_on_delay = 100,
 824};
 825
 826/*
 827 * StrataFlash
 828 */
 829
 830static int magician_flash_init(struct platform_device *pdev)
 831{
 832        int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");
 833
 834        if (ret) {
 835                pr_err("Cannot request flash enable GPIO (%i)\n", ret);
 836                return ret;
 837        }
 838
 839        ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
 840        if (ret) {
 841                pr_err("Cannot set direction for flash enable (%i)\n", ret);
 842                gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
 843        }
 844
 845        return ret;
 846}
 847
 848static void magician_set_vpp(struct platform_device *pdev, int vpp)
 849{
 850        gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
 851}
 852
 853static void magician_flash_exit(struct platform_device *pdev)
 854{
 855        gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
 856}
 857
 858static struct resource strataflash_resource = {
 859        .start  = PXA_CS0_PHYS,
 860        .end    = PXA_CS0_PHYS + SZ_64M - 1,
 861        .flags  = IORESOURCE_MEM,
 862};
 863
 864static struct mtd_partition magician_flash_parts[] = {
 865        {
 866                .name           = "Bootloader",
 867                .offset         = 0x0,
 868                .size           = 0x40000,
 869                .mask_flags     = MTD_WRITEABLE, /* EXPERIMENTAL */
 870        },
 871        {
 872                .name           = "Linux Kernel",
 873                .offset         = 0x40000,
 874                .size           = MTDPART_SIZ_FULL,
 875        },
 876};
 877
 878/*
 879 * physmap-flash driver
 880 */
 881
 882static struct physmap_flash_data strataflash_data = {
 883        .width          = 4,
 884        .init           = magician_flash_init,
 885        .set_vpp        = magician_set_vpp,
 886        .exit           = magician_flash_exit,
 887        .parts          = magician_flash_parts,
 888        .nr_parts       = ARRAY_SIZE(magician_flash_parts),
 889};
 890
 891static struct platform_device strataflash = {
 892        .name           = "physmap-flash",
 893        .id             = -1,
 894        .resource       = &strataflash_resource,
 895        .num_resources  = 1,
 896        .dev = {
 897                .platform_data = &strataflash_data,
 898        },
 899};
 900
 901/*
 902 * PXA I2C main controller
 903 */
 904
 905static struct i2c_pxa_platform_data i2c_info = {
 906        /* OV9640 I2C device doesn't support fast mode */
 907        .fast_mode      = 0,
 908};
 909
 910/*
 911 * PXA I2C power controller
 912 */
 913
 914static struct i2c_pxa_platform_data magician_i2c_power_info = {
 915        .fast_mode      = 1,
 916};
 917
 918/*
 919 * Touchscreen
 920 */
 921
 922static struct ads7846_platform_data ads7846_pdata = {
 923        .model          = 7846,
 924        .x_plate_ohms   = 317,
 925        .y_plate_ohms   = 500,
 926        .pressure_max   = 1023, /* with x plate ohms it will overflow 255 */
 927        .debounce_max   = 3,    /* first readout is always bad */
 928        .debounce_tol   = 30,
 929        .debounce_rep   = 0,
 930        .gpio_pendown   = GPIO115_MAGICIAN_nPEN_IRQ,
 931        .keep_vref_on   = 1,
 932        .wakeup         = true,
 933        .vref_delay_usecs               = 100,
 934        .penirq_recheck_delay_usecs     = 100,
 935};
 936
 937struct pxa2xx_spi_chip tsc2046_chip_info = {
 938        .tx_threshold   = 1,
 939        .rx_threshold   = 2,
 940        .timeout        = 64,
 941};
 942
 943static struct pxa2xx_spi_controller magician_spi_info = {
 944        .num_chipselect = 1,
 945        .enable_dma     = 1,
 946};
 947
 948static struct gpiod_lookup_table magician_spi_gpio_table = {
 949        .dev_id = "pxa2xx-spi.2",
 950        .table = {
 951                /* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
 952                GPIO_LOOKUP_IDX("gpio-pxa", GPIO14_MAGICIAN_TSC2046_CS, "cs", 0, GPIO_ACTIVE_LOW),
 953                { },
 954        },
 955};
 956
 957static struct spi_board_info ads7846_spi_board_info[] __initdata = {
 958        {
 959                .modalias               = "ads7846",
 960                .bus_num                = 2,
 961                .max_speed_hz           = 2500000,
 962                .platform_data          = &ads7846_pdata,
 963                .controller_data        = &tsc2046_chip_info,
 964                .irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
 965        },
 966};
 967
 968/*
 969 * Platform devices
 970 */
 971
 972static struct platform_device *devices[] __initdata = {
 973        &gpio_keys,
 974        &egpio,
 975        &backlight,
 976        &pasic3,
 977        &bq24022,
 978        &gpio_vbus,
 979        &power_supply,
 980        &strataflash,
 981        &leds_gpio,
 982        &vads7846_device,
 983};
 984
 985static struct gpio magician_global_gpios[] = {
 986        { GPIO13_MAGICIAN_CPLD_IRQ, GPIOF_IN, "CPLD_IRQ" },
 987        { GPIO107_MAGICIAN_DS1WM_IRQ, GPIOF_IN, "DS1WM_IRQ" },
 988
 989        /* NOTICE valid LCD init sequence */
 990        { GPIO106_MAGICIAN_LCD_DCDC_NRESET, GPIOF_OUT_INIT_LOW, "LCD DCDC nreset" },
 991        { GPIO104_MAGICIAN_LCD_VOFF_EN, GPIOF_OUT_INIT_LOW, "LCD VOFF enable" },
 992        { GPIO105_MAGICIAN_LCD_VON_EN, GPIOF_OUT_INIT_LOW, "LCD VON enable" },
 993};
 994
 995static void __init magician_init(void)
 996{
 997        void __iomem *cpld;
 998        int lcd_select;
 999        int err;
1000
1001        pxa2xx_mfp_config(ARRAY_AND_SIZE(magician_pin_config));
1002        err = gpio_request_array(ARRAY_AND_SIZE(magician_global_gpios));
1003        if (err)
1004                pr_err("magician: Failed to request global GPIOs: %d\n", err);
1005
1006        pxa_set_ffuart_info(NULL);
1007        pxa_set_btuart_info(NULL);
1008
1009        pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup));
1010
1011        pxa_set_ficp_info(&magician_ficp_info);
1012        pxa27x_set_i2c_power_info(&magician_i2c_power_info);
1013        pxa_set_i2c_info(&i2c_info);
1014
1015        i2c_register_board_info(1,
1016                ARRAY_AND_SIZE(magician_pwr_i2c_board_info));
1017
1018        gpiod_add_lookup_table(&magician_mci_gpio_table);
1019        pxa_set_mci_info(&magician_mci_info);
1020        pxa_set_ohci_info(&magician_ohci_info);
1021        pxa_set_udc_info(&magician_udc_info);
1022
1023        /* Check LCD type we have */
1024        cpld = ioremap(PXA_CS3_PHYS, 0x1000);
1025        if (cpld) {
1026                u8 board_id = __raw_readb(cpld + 0x14);
1027
1028                iounmap(cpld);
1029                system_rev = board_id & 0x7;
1030                lcd_select = board_id & 0x8;
1031                pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
1032                if (lcd_select && (system_rev < 3))
1033                        /* NOTICE valid LCD init sequence */
1034                        gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
1035                                GPIOF_OUT_INIT_LOW, "Samsung LCD Power");
1036                pxa_set_fb_info(NULL,
1037                        lcd_select ? &samsung_info : &toppoly_info);
1038        } else
1039                pr_err("LCD detection: CPLD mapping failed\n");
1040
1041        gpiod_add_lookup_table(&magician_spi_gpio_table);
1042        pxa2xx_set_spi_info(2, &magician_spi_info);
1043        spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
1044
1045        regulator_register_always_on(0, "power", pwm_backlight_supply,
1046                ARRAY_SIZE(pwm_backlight_supply), 5000000);
1047
1048        gpiod_add_lookup_table(&bq24022_gpiod_table);
1049        gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
1050        platform_add_devices(ARRAY_AND_SIZE(devices));
1051}
1052
1053MACHINE_START(MAGICIAN, "HTC Magician")
1054        .atag_offset    = 0x100,
1055        .map_io         = pxa27x_map_io,
1056        .nr_irqs        = MAGICIAN_NR_IRQS,
1057        .init_irq       = pxa27x_init_irq,
1058        .handle_irq     = pxa27x_handle_irq,
1059        .init_machine   = magician_init,
1060        .init_time      = pxa_timer_init,
1061        .restart        = pxa_restart,
1062MACHINE_END
1063