target/linux/omap24xx/patches-3.1/330-n800-tsc2301-platform.patch

   1 From f0bb9e67f0f13021e5033fed3dfe8ef78fe6a538 Mon Sep 17 00:00:00 2001
   2 From: Marat Radchenko <marat@slonopotamus.org>
   3 Date: Tue, 18 Oct 2011 21:52:56 +0400
   4 Subject: [PATCH 2/2] N800: add TSC2301 board info
   5
   6 This patch adds TSC2301 init logic to N800 board file
   7 ---
   8  arch/arm/mach-omap2/board-n8x0.c |  141 ++++++++++++++++++++++++++++++++++++--
   9  1 files changed, 135 insertions(+), 6 deletions(-)
  10
  11 --- a/arch/arm/mach-omap2/board-n8x0.c
  12 +++ b/arch/arm/mach-omap2/board-n8x0.c
  13 @@ -27,6 +27,7 @@
  14  #include <linux/spi/tsc2005.h>
  15  #include <linux/input.h>
  16  #include <linux/i2c/lm8323.h>
  17 +#include <linux/spi/tsc2301.h>
  18
  19  #include <asm/mach/arch.h>
  20  #include <asm/mach-types.h>
  21 @@ -63,7 +64,75 @@ static struct omap2_mcspi_device_config
  22  };
  23  #endif
  24
  25 -static void __init tsc2005_set_config(void)
  26 +#ifdef CONFIG_TOUCHSCREEN_TSC2301
  27 +
  28 +#define N800_KEYB_IRQ_GPIO             109
  29 +
  30 +static struct tsc2301_platform_data tsc2301_config = {
  31 +       .reset_gpio     = 118,
  32 +       .keymap = {
  33 +               -1,             /* Event for bit 0 */
  34 +               KEY_UP,         /* Event for bit 1 (up) */
  35 +               KEY_F5,         /* Event for bit 2 (home) */
  36 +               -1,             /* Event for bit 3 */
  37 +               KEY_LEFT,       /* Event for bit 4 (left) */
  38 +               KEY_ENTER,      /* Event for bit 5 (enter) */
  39 +               KEY_RIGHT,      /* Event for bit 6 (right) */
  40 +               -1,             /* Event for bit 7 */
  41 +               KEY_ESC,        /* Event for bit 8 (cycle) */
  42 +               KEY_DOWN,       /* Event for bit 9 (down) */
  43 +               KEY_F4,         /* Event for bit 10 (menu) */
  44 +               -1,             /* Event for bit 11 */
  45 +               KEY_F8,         /* Event for bit 12 (Zoom-) */
  46 +               KEY_F6,         /* Event for bit 13 (FS) */
  47 +               KEY_F7,         /* Event for bit 14 (Zoom+) */
  48 +               -1,             /* Event for bit 15 */
  49 +       },
  50 +       .kp_rep         = 0,
  51 +       .keyb_name      = "Internal keypad",
  52 +};
  53 +
  54 +static struct omap2_mcspi_device_config tsc2301_mcspi_config = {
  55 +       .turbo_mode     = 0,
  56 +       .single_channel = 1,
  57 +};
  58 +
  59 +/*
  60 +  TODO(Marat Radchenko): better pass GPIO to tsc2301 driver and let it
  61 +  allocate irq itself (as it is already done for touchscreen)
  62 + */
  63 +static void tsc2301_dev_init(void)
  64 +{
  65 +       int r;
  66 +       int gpio = N800_KEYB_IRQ_GPIO;
  67 +
  68 +       r = gpio_request(gpio, "tsc2301 KBD IRQ");
  69 +       if (r >= 0) {
  70 +               gpio_direction_input(gpio);
  71 +               tsc2301_config.keyb_int = gpio_to_irq(gpio);
  72 +       } else {
  73 +               printk(KERN_ERR "unable to get KBD GPIO");
  74 +       }
  75 +
  76 +       gpio = 103;
  77 +       r = gpio_request(gpio, "tsc2301 DAV IRQ");
  78 +       if (r >= 0) {
  79 +               gpio_direction_input(gpio);
  80 +               tsc2301_config.dav_int = gpio_to_irq(gpio);
  81 +       } else {
  82 +               printk(KERN_ERR "unable to get DAV GPIO");
  83 +       }
  84 +}
  85 +
  86 +#else
  87 +
  88 +static void __init tsc2301_dev_init(void)
  89 +{
  90 +}
  91 +
  92 +#endif
  93 +
  94 +static void __init n8x0_ts_set_config(void)
  95  {
  96         const struct omap_lcd_config *conf;
  97
  98 @@ -94,6 +163,37 @@ static void __init tsc2005_set_config(vo
  99                         tsc2005_config.ts_x_plate_ohm = 200;
 100                 }
 101  #endif
 102 +
 103 +#ifdef CONFIG_TOUCHSCREEN_TSC2301
 104 +               if (strcmp(conf->panel_name, "lph8923") == 0) {
 105 +                       tsc2301_config.ts_x_plate_ohm   = 180;
 106 +                       tsc2301_config.ts_hw_avg        = 8;
 107 +                       tsc2301_config.ts_max_pressure  = 2048;
 108 +                       tsc2301_config.ts_touch_pressure = 400;
 109 +                       tsc2301_config.ts_stab_time     = 100;
 110 +                       tsc2301_config.ts_pressure_fudge = 2;
 111 +                       tsc2301_config.ts_x_max         = 4096;
 112 +                       tsc2301_config.ts_x_fudge       = 4;
 113 +                       tsc2301_config.ts_y_max         = 4096;
 114 +                       tsc2301_config.ts_y_fudge       = 7;
 115 +               } else if (strcmp(conf->panel_name, "ls041y3") == 0) {
 116 +                       tsc2301_config.ts_x_plate_ohm   = 280;
 117 +                       tsc2301_config.ts_hw_avg        = 8;
 118 +                       tsc2301_config.ts_touch_pressure = 400;
 119 +                       tsc2301_config.ts_max_pressure  = 2048;
 120 +                       tsc2301_config.ts_stab_time     = 1000;
 121 +                       tsc2301_config.ts_pressure_fudge = 2;
 122 +                       tsc2301_config.ts_x_max         = 4096;
 123 +                       tsc2301_config.ts_x_fudge       = 4;
 124 +                       tsc2301_config.ts_y_max         = 4096;
 125 +                       tsc2301_config.ts_y_fudge       = 7;
 126 +               } else {
 127 +                       printk(KERN_ERR "Unknown panel type, set default "
 128 +                              "touchscreen configuration\n");
 129 +                       tsc2301_config.ts_x_plate_ohm   = 200;
 130 +                       tsc2301_config.ts_stab_time     = 100;
 131 +               }
 132 +#endif
 133         }
 134  }
 135
 136 @@ -347,13 +447,12 @@ static void __init n8x0_usb_init(void) {
 137
 138  #endif /*CONFIG_USB_MUSB_TUSB6010 */
 139
 140 -
 141  static struct omap2_mcspi_device_config p54spi_mcspi_config = {
 142         .turbo_mode     = 0,
 143         .single_channel = 1,
 144  };
 145
 146 -static struct spi_board_info n800_spi_board_info[] __initdata = {
 147 +static struct spi_board_info n8x0_common_spi_board_info[] __initdata = {
 148         {
 149                 .modalias       = "lcd_mipid",
 150                 .bus_num        = 1,
 151 @@ -369,6 +468,10 @@ static struct spi_board_info n800_spi_bo
 152                 .max_speed_hz   = 48000000,
 153                 .controller_data = &p54spi_mcspi_config,
 154         },
 155 +};
 156 +
 157 +static struct spi_board_info n810_spi_board_info[] __initdata = {
 158 +#ifdef CONFIG_TOUCHSCREEN_TSC2005
 159         {
 160                 .modalias        = "tsc2005",
 161                 .bus_num         = 1,
 162 @@ -378,6 +481,20 @@ static struct spi_board_info n800_spi_bo
 163                 .controller_data = &tsc2005_mcspi_config,
 164                 .platform_data   = &tsc2005_config,
 165         },
 166 +#endif
 167 +};
 168 +
 169 +static struct spi_board_info n800_spi_board_info[] __initdata = {
 170 +#if defined(CONFIG_TOUCHSCREEN_TSC2301)
 171 +       {
 172 +               .modalias        = "tsc2301",
 173 +               .bus_num         = 1,
 174 +               .chip_select     = 0,
 175 +               .max_speed_hz    = 6000000,
 176 +               .controller_data = &tsc2301_mcspi_config,
 177 +               .platform_data   = &tsc2301_config,
 178 +       },
 179 +#endif
 180  };
 181
 182  #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
 183 @@ -1023,9 +1140,17 @@ static void __init n8x0_init_machine(voi
 184         n8x0_bt_init();
 185
 186         /* FIXME: add n810 spi devices */
 187 -       tsc2005_set_config();
 188 -       spi_register_board_info(n800_spi_board_info,
 189 -                               ARRAY_SIZE(n800_spi_board_info));
 190 +       n8x0_ts_set_config();
 191 +
 192 +       spi_register_board_info(n8x0_common_spi_board_info,
 193 +                               ARRAY_SIZE(n8x0_common_spi_board_info));
 194 +       if (machine_is_nokia_n800())
 195 +               spi_register_board_info(n800_spi_board_info,
 196 +                                       ARRAY_SIZE(n800_spi_board_info));
 197 +       else
 198 +               spi_register_board_info(n810_spi_board_info,
 199 +                                       ARRAY_SIZE(n810_spi_board_info));
 200 +
 201         omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
 202                               ARRAY_SIZE(n8x0_i2c_board_info_1));
 203         omap_register_i2c_bus(2, 400, NULL, 0);
 204 @@ -1035,6 +1160,8 @@ static void __init n8x0_init_machine(voi
 205         board_serial_init();
 206         n8x0_mipid_init();
 207         n8x0_blizzard_init();
 208 +       if (machine_is_nokia_n800())
 209 +               tsc2301_dev_init();
 210         gpmc_onenand_init(board_onenand_data);
 211         n8x0_mmc_init();
 212         n8x0_usb_init();