recipes-kernel/linux/linux-ti33x-psp-3.2/beaglebone/0024-beaglebone-add-gpio-keys-for-lcd.patch

   1 From d76d09ea8918a1aa315b44d4e12b71a522545da8 Mon Sep 17 00:00:00 2001
   2 From: Koen Kooi <koen@dominion.thruhere.net>
   3 Date: Mon, 19 Mar 2012 15:15:06 +0100
   4 Subject: [PATCH 24/26] beaglebone: add gpio-keys for lcd
   5
   6 Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
   7 ---
   8  arch/arm/mach-omap2/board-am335xevm.c |   82 +++++++++++++++++++++++++++++++--
   9  1 file changed, 78 insertions(+), 4 deletions(-)
  10
  11 diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
  12 index e77bcd6..ed2ea68 100644
  13 --- a/arch/arm/mach-omap2/board-am335xevm.c
  14 +++ b/arch/arm/mach-omap2/board-am335xevm.c
  15 @@ -1068,6 +1068,82 @@ static void beaglebone_lcd7_keys_init(int evm_id, int profile)
  16                 pr_err("failed to register gpio keys for LCD7 cape\n");
  17  }
  18
  19 +/* pinmux for lcd3 keys */
  20 +static struct pinmux_config lcd3_keys_pin_mux[] = {
  21 +       {"gpmc_a0.gpio1_16",  OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
  22 +       {"gpmc_a1.gpio1_17",    OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
  23 +       {"mcasp0_fsr.gpio3_19",  OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
  24 +       {"gpmc_ben1.gpio1_28",    OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
  25 +       {"ecap0_in_pwm0_out.gpio0_7",    OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
  26 +       {NULL, 0},
  27 +};
  28 +
  29 +/* Configure GPIOs for lcd3 keys */
  30 +static struct gpio_keys_button beaglebone_lcd3_gpio_keys[] = {
  31 +       {
  32 +               .code                   = KEY_LEFT,
  33 +               .gpio                   = GPIO_TO_PIN(1, 16),
  34 +               .active_low             = false,
  35 +               .desc                   = "left",
  36 +               .type                   = EV_KEY,
  37 +               .wakeup                 = 1,
  38 +       },
  39 +       {
  40 +               .code                   = KEY_RIGHT,
  41 +               .gpio                   = GPIO_TO_PIN(1, 17),
  42 +               .active_low             = false,
  43 +               .desc                   = "right",
  44 +               .type                   = EV_KEY,
  45 +               .wakeup                 = 1,
  46 +       },
  47 +       {
  48 +               .code                   = KEY_UP,
  49 +               .gpio                   = GPIO_TO_PIN(3, 19),
  50 +               .active_low             = false,
  51 +               .desc                   = "up",
  52 +               .type                   = EV_KEY,
  53 +               .wakeup                 = 1,
  54 +       },
  55 +       {
  56 +               .code                   = KEY_DOWN,
  57 +               .gpio                   = GPIO_TO_PIN(1, 28),
  58 +               .active_low             = false,
  59 +               .desc                   = "down",
  60 +               .type                   = EV_KEY,
  61 +               .wakeup                 = 1,
  62 +       },
  63 +       {
  64 +               .code                   = KEY_ENTER,
  65 +               .gpio                   = GPIO_TO_PIN(0, 7),
  66 +               .active_low             = false,
  67 +               .desc                   = "down",
  68 +               .type                   = EV_KEY,
  69 +               .wakeup                 = 1,
  70 +       },
  71 +};
  72 +
  73 +static struct gpio_keys_platform_data beaglebone_lcd3_gpio_key_info = {
  74 +       .buttons        = beaglebone_lcd3_gpio_keys,
  75 +       .nbuttons       = ARRAY_SIZE(beaglebone_lcd3_gpio_keys),
  76 +};
  77 +
  78 +static struct platform_device beaglebone_lcd3_keys = {
  79 +       .name   = "gpio-keys",
  80 +       .id     = -1,
  81 +       .dev    = {
  82 +               .platform_data  = &beaglebone_lcd3_gpio_key_info,
  83 +       },
  84 +};
  85 +
  86 +static void beaglebone_lcd3_keys_init(int evm_id, int profile)
  87 +{
  88 +       int err;
  89 +       setup_pin_mux(lcd3_keys_pin_mux);
  90 +       err = platform_device_register(&beaglebone_lcd3_keys);
  91 +       if (err)
  92 +               pr_err("failed to register gpio keys for LCD3 cape\n");
  93 +}
  94 +
  95  /*
  96  * @evm_id - evm id which needs to be configured
  97  * @dev_cfg - single evm structure which includes
  98 @@ -2029,10 +2105,8 @@ static void beaglebone_cape_setup(struct memory_accessor *mem_acc, void *context
  99                 pr_info("BeagleBone cape: initializing LCD cape touchscreen\n");
 100                 tsc_init(0,0);
 101                 beaglebone_tsadcpins_free = 0;
 102 -               // gpio1_16 -> button
 103 -               // gpio1_17 -> button
 104 -               // gpio3_19 -> button
 105 -               // gpio1_28 -> button
 106 +               pr_info("BeagleBone cape: Registering gpio-keys for LCD cape\n");
 107 +               beaglebone_lcd3_keys_init(0,0);
 108         }
 109
 110         if (!strncmp("BB-BONE-VGA-01", cape_config.partnumber, 15)) {
 111 --
 112 1.7.9.5
 113