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From b61b89f98ac85ccd8d503a902bad208343ed0aba Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Mon, 4 Jun 2012 14:38:02 +0200
Subject: [PATCH] beaglebone: add support for LCD3 rev A1
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-am335xevm.c | 94 +++++++++++++++++++++++++++++----
1 files changed, 83 insertions(+), 11 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index bb6049a..51bfa8b 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -1136,7 +1136,7 @@ static struct pinmux_config lcd3_keys_pin_mux[] = {
{NULL, 0},
};
-/* Configure GPIOs for lcd3 keys */
+/* Configure GPIOs for lcd3 rev A or earlier keys */
static struct gpio_keys_button beaglebone_lcd3_gpio_keys[] = {
{
.code = KEY_LEFT,
@@ -1193,14 +1193,72 @@ static struct platform_device beaglebone_lcd3_keys = {
},
};
-static void beaglebone_lcd3_keys_init(int evm_id, int profile)
-{
- int err;
- setup_pin_mux(lcd3_keys_pin_mux);
- err = platform_device_register(&beaglebone_lcd3_keys);
- if (err)
- pr_err("failed to register gpio keys for LCD3 cape\n");
-}
+/* pinmux for lcd3 A1 or newer keys */
+static struct pinmux_config lcd3a1_keys_pin_mux[] = {
+ {"gpmc_a0.gpio1_16", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT}, // Left
+ {"gpmc_a1.gpio1_17", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT}, //Right
+ {"gpmc_a3.gpio1_19", OMAP_MUX_MODE7 | AM33XX_PIN_OUTPUT}, // Up
+ {"mcasp0_axr0.gpio3_16", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT}, //Down
+ {"mcasp0_fsr.gpio3_19", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT}, // Enter
+ {NULL, 0},
+};
+
+/* Configure GPIOs for lcd3 rev A1 or newer keys */
+static struct gpio_keys_button lcd3a1_gpio_keys[] = {
+ {
+ .code = KEY_LEFT,
+ .gpio = GPIO_TO_PIN(1, 16),
+ .active_low = true,
+ .desc = "left",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+ {
+ .code = KEY_RIGHT,
+ .gpio = GPIO_TO_PIN(1, 17),
+ .active_low = true,
+ .desc = "right",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+ {
+ .code = KEY_UP,
+ .gpio = GPIO_TO_PIN(1, 19),
+ .active_low = true,
+ .desc = "up",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+ {
+ .code = KEY_DOWN,
+ .gpio = GPIO_TO_PIN(3, 16),
+ .active_low = true,
+ .desc = "down",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+ {
+ .code = KEY_ENTER,
+ .gpio = GPIO_TO_PIN(3, 19),
+ .active_low = true,
+ .desc = "enter",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+};
+
+static struct gpio_keys_platform_data lcd3a1_gpio_key_info = {
+ .buttons = lcd3a1_gpio_keys,
+ .nbuttons = ARRAY_SIZE(lcd3a1_gpio_keys),
+};
+
+static struct platform_device lcd3a1_keys = {
+ .name = "gpio-keys",
+ .id = -1,
+ .dev = {
+ .platform_data = &lcd3a1_gpio_key_info,
+ },
+};
/*
* @evm_id - evm id which needs to be configured
@@ -2691,8 +2749,22 @@ static void beaglebone_cape_setup(struct memory_accessor *mem_acc, void *context
pr_info("BeagleBone cape: initializing LCD cape touchscreen\n");
tsc_init(0,0);
beaglebone_tsadcpins_free = 0;
- pr_info("BeagleBone cape: Registering gpio-keys for LCD cape\n");
- beaglebone_lcd3_keys_init(0,0);
+
+ if (!strncmp("00A0", cape_config.version, 4)) {
+ pr_info("BeagleBone cape: Registering gpio-keys for LCD3 rev A or earlier cape\n");
+ int err;
+ setup_pin_mux(lcd3_keys_pin_mux);
+ err = platform_device_register(&beaglebone_lcd3_keys);
+ if (err)
+ pr_err("failed to register gpio keys for LCD3 rev A or earlier cape\n");
+ } else {
+ pr_info("BeagleBone cape: Registering gpio-keys for LCD rev A1 or later cape\n");
+ int err;
+ setup_pin_mux(lcd3a1_keys_pin_mux);
+ err = platform_device_register(&lcd3a1_keys);
+ if (err)
+ pr_err("failed to register gpio keys for LCD3 rev A1 or later cape\n");
+ }
beaglebone_leds_free = 0;
lcd3leds_init(0,0);
}
--
1.7.7.6
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