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 Index: linux-3.1/arch/arm/mach-omap2/board-n8x0.c
  12 ===================================================================
  13 --- linux-3.1.orig/arch/arm/mach-omap2/board-n8x0.c     2011-10-30 19:32:22.288178756 +0100
  14 +++ linux-3.1/arch/arm/mach-omap2/board-n8x0.c  2011-10-30 19:32:26.840094004 +0100
  15 @@ -27,6 +27,7 @@
  16  #include <linux/spi/tsc2005.h>
  17  #include <linux/input.h>
  18  #include <linux/i2c/lm8323.h>
  19 +#include <linux/spi/tsc2301.h>
  20
  21  #include <asm/mach/arch.h>
  22  #include <asm/mach-types.h>
  23 @@ -63,7 +64,75 @@ static struct omap2_mcspi_device_config
  24  };
  25  #endif
  26
  27 -static void __init tsc2005_set_config(void)
  28 +#ifdef CONFIG_TOUCHSCREEN_TSC2301
  29 +
  30 +#define N800_KEYB_IRQ_GPIO             109
  31 +
  32 +static struct tsc2301_platform_data tsc2301_config = {
  33 +       .reset_gpio     = 118,
  34 +       .keymap = {
  35 +               -1,             /* Event for bit 0 */
  36 +               KEY_UP,         /* Event for bit 1 (up) */
  37 +               KEY_F5,         /* Event for bit 2 (home) */
  38 +               -1,             /* Event for bit 3 */
  39 +               KEY_LEFT,       /* Event for bit 4 (left) */
  40 +               KEY_ENTER,      /* Event for bit 5 (enter) */
  41 +               KEY_RIGHT,      /* Event for bit 6 (right) */
  42 +               -1,             /* Event for bit 7 */
  43 +               KEY_ESC,        /* Event for bit 8 (cycle) */
  44 +               KEY_DOWN,       /* Event for bit 9 (down) */
  45 +               KEY_F4,         /* Event for bit 10 (menu) */
  46 +               -1,             /* Event for bit 11 */
  47 +               KEY_F8,         /* Event for bit 12 (Zoom-) */
  48 +               KEY_F6,         /* Event for bit 13 (FS) */
  49 +               KEY_F7,         /* Event for bit 14 (Zoom+) */
  50 +               -1,             /* Event for bit 15 */
  51 +       },
  52 +       .kp_rep         = 0,
  53 +       .keyb_name      = "Internal keypad",
  54 +};
  55 +
  56 +static struct omap2_mcspi_device_config tsc2301_mcspi_config = {
  57 +       .turbo_mode     = 0,
  58 +       .single_channel = 1,
  59 +};
  60 +
  61 +/*
  62 +  TODO(Marat Radchenko): better pass GPIO to tsc2301 driver and let it
  63 +  allocate irq itself (as it is already done for touchscreen)
  64 + */
  65 +static void tsc2301_dev_init(void)
  66 +{
  67 +       int r;
  68 +       int gpio = N800_KEYB_IRQ_GPIO;
  69 +
  70 +       r = gpio_request(gpio, "tsc2301 KBD IRQ");
  71 +       if (r >= 0) {
  72 +               gpio_direction_input(gpio);
  73 +               tsc2301_config.keyb_int = gpio_to_irq(gpio);
  74 +       } else {
  75 +               printk(KERN_ERR "unable to get KBD GPIO");
  76 +       }
  77 +
  78 +       gpio = 103;
  79 +       r = gpio_request(gpio, "tsc2301 DAV IRQ");
  80 +       if (r >= 0) {
  81 +               gpio_direction_input(gpio);
  82 +               tsc2301_config.dav_int = gpio_to_irq(gpio);
  83 +       } else {
  84 +               printk(KERN_ERR "unable to get DAV GPIO");
  85 +       }
  86 +}
  87 +
  88 +#else
  89 +
  90 +static void __init tsc2301_dev_init(void)
  91 +{
  92 +}
  93 +
  94 +#endif
  95 +
  96 +static void __init n8x0_ts_set_config(void)
  97  {
  98         const struct omap_lcd_config *conf;
  99
 100 @@ -94,6 +163,37 @@ static void __init tsc2005_set_config(vo
 101                         tsc2005_config.ts_x_plate_ohm = 200;
 102                 }
 103  #endif
 104 +
 105 +#ifdef CONFIG_TOUCHSCREEN_TSC2301
 106 +               if (strcmp(conf->panel_name, "lph8923") == 0) {
 107 +                       tsc2301_config.ts_x_plate_ohm   = 180;
 108 +                       tsc2301_config.ts_hw_avg        = 8;
 109 +                       tsc2301_config.ts_max_pressure  = 2048;
 110 +                       tsc2301_config.ts_touch_pressure = 400;
 111 +                       tsc2301_config.ts_stab_time     = 100;
 112 +                       tsc2301_config.ts_pressure_fudge = 2;
 113 +                       tsc2301_config.ts_x_max         = 4096;
 114 +                       tsc2301_config.ts_x_fudge       = 4;
 115 +                       tsc2301_config.ts_y_max         = 4096;
 116 +                       tsc2301_config.ts_y_fudge       = 7;
 117 +               } else if (strcmp(conf->panel_name, "ls041y3") == 0) {
 118 +                       tsc2301_config.ts_x_plate_ohm   = 280;
 119 +                       tsc2301_config.ts_hw_avg        = 8;
 120 +                       tsc2301_config.ts_touch_pressure = 400;
 121 +                       tsc2301_config.ts_max_pressure  = 2048;
 122 +                       tsc2301_config.ts_stab_time     = 1000;
 123 +                       tsc2301_config.ts_pressure_fudge = 2;
 124 +                       tsc2301_config.ts_x_max         = 4096;
 125 +                       tsc2301_config.ts_x_fudge       = 4;
 126 +                       tsc2301_config.ts_y_max         = 4096;
 127 +                       tsc2301_config.ts_y_fudge       = 7;
 128 +               } else {
 129 +                       printk(KERN_ERR "Unknown panel type, set default "
 130 +                              "touchscreen configuration\n");
 131 +                       tsc2301_config.ts_x_plate_ohm   = 200;
 132 +                       tsc2301_config.ts_stab_time     = 100;
 133 +               }
 134 +#endif
 135         }
 136  }
 137
 138 @@ -347,13 +447,12 @@ static void __init n8x0_usb_init(void) {
 139
 140  #endif /*CONFIG_USB_MUSB_TUSB6010 */
 141
 142 -
 143  static struct omap2_mcspi_device_config p54spi_mcspi_config = {
 144         .turbo_mode     = 0,
 145         .single_channel = 1,
 146  };
 147
 148 -static struct spi_board_info n800_spi_board_info[] __initdata = {
 149 +static struct spi_board_info n8x0_common_spi_board_info[] __initdata = {
 150         {
 151                 .modalias       = "lcd_mipid",
 152                 .bus_num        = 1,
 153 @@ -369,6 +468,10 @@ static struct spi_board_info n800_spi_bo
 154                 .max_speed_hz   = 48000000,
 155                 .controller_data = &p54spi_mcspi_config,
 156         },
 157 +};
 158 +
 159 +static struct spi_board_info n810_spi_board_info[] __initdata = {
 160 +#ifdef CONFIG_TOUCHSCREEN_TSC2005
 161         {
 162                 .modalias        = "tsc2005",
 163                 .bus_num         = 1,
 164 @@ -378,6 +481,20 @@ static struct spi_board_info n800_spi_bo
 165                 .controller_data = &tsc2005_mcspi_config,
 166                 .platform_data   = &tsc2005_config,
 167         },
 168 +#endif
 169 +};
 170 +
 171 +static struct spi_board_info n800_spi_board_info[] __initdata = {
 172 +#if defined(CONFIG_TOUCHSCREEN_TSC2301)
 173 +       {
 174 +               .modalias        = "tsc2301",
 175 +               .bus_num         = 1,
 176 +               .chip_select     = 0,
 177 +               .max_speed_hz    = 6000000,
 178 +               .controller_data = &tsc2301_mcspi_config,
 179 +               .platform_data   = &tsc2301_config,
 180 +       },
 181 +#endif
 182  };
 183
 184  #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
 185 @@ -1023,9 +1140,17 @@ static void __init n8x0_init_machine(voi
 186         n8x0_bt_init();
 187
 188         /* FIXME: add n810 spi devices */
 189 -       tsc2005_set_config();
 190 -       spi_register_board_info(n800_spi_board_info,
 191 -                               ARRAY_SIZE(n800_spi_board_info));
 192 +       n8x0_ts_set_config();
 193 +
 194 +       spi_register_board_info(n8x0_common_spi_board_info,
 195 +                               ARRAY_SIZE(n8x0_common_spi_board_info));
 196 +       if (machine_is_nokia_n800())
 197 +               spi_register_board_info(n800_spi_board_info,
 198 +                                       ARRAY_SIZE(n800_spi_board_info));
 199 +       else
 200 +               spi_register_board_info(n810_spi_board_info,
 201 +                                       ARRAY_SIZE(n810_spi_board_info));
 202 +
 203         omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
 204                               ARRAY_SIZE(n8x0_i2c_board_info_1));
 205         omap_register_i2c_bus(2, 400, NULL, 0);
 206 @@ -1035,6 +1160,8 @@ static void __init n8x0_init_machine(voi
 207         board_serial_init();
 208         n8x0_mipid_init();
 209         n8x0_blizzard_init();
 210 +       if (machine_is_nokia_n800())
 211 +               tsc2301_dev_init();
 212         gpmc_onenand_init(board_onenand_data);
 213         n8x0_mmc_init();
 214         n8x0_usb_init();