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From 7d829ebc289c6e311171cb3974e428ed2562c0ad Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Mon, 19 Mar 2012 13:32:43 +0100
Subject: [PATCH 22/56] beaglebone: add gpio-keys for lcd7, add notes for
missing functionality for other capes
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-am335xevm.c | 79 +++++++++++++++++++++++++++++++++
1 files changed, 79 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index f854329..9e9cf5b 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -994,6 +994,73 @@ static void volume_keys_init(int evm_id, int profile)
pr_err("failed to register matrix keypad (2x3) device\n");
}
+/* pinmux for lcd7 keys */
+static struct pinmux_config lcd7_keys_pin_mux[] = {
+ {"gpmc_a0.gpio1_16", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
+ {"gpmc_a1.gpio1_17", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
+ {"gpmc_a3.gpio1_19", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
+ {"mcasp0_axr0.gpio3_16", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},
+ {NULL, 0},
+};
+
+/* Configure GPIOs for lcd7 keys */
+static struct gpio_keys_button beaglebone_lcd7_gpio_keys[] = {
+ {
+ .code = KEY_LEFT,
+ .gpio = GPIO_TO_PIN(1, 16),
+ .active_low = false,
+ .desc = "left",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+ {
+ .code = KEY_RIGHT,
+ .gpio = GPIO_TO_PIN(1, 17),
+ .active_low = false,
+ .desc = "right",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+ {
+ .code = KEY_UP,
+ .gpio = GPIO_TO_PIN(1, 19),
+ .active_low = false,
+ .desc = "up",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+ {
+ .code = KEY_DOWN,
+ .gpio = GPIO_TO_PIN(3, 16),
+ .active_low = false,
+ .desc = "down",
+ .type = EV_KEY,
+ .wakeup = 1,
+ },
+};
+
+static struct gpio_keys_platform_data beaglebone_lcd7_gpio_key_info = {
+ .buttons = beaglebone_lcd7_gpio_keys,
+ .nbuttons = ARRAY_SIZE(beaglebone_lcd7_gpio_keys),
+};
+
+static struct platform_device beaglebone_lcd7_keys = {
+ .name = "gpio-keys",
+ .id = -1,
+ .dev = {
+ .platform_data = &beaglebone_lcd7_gpio_key_info,
+ },
+};
+
+static void beaglebone_lcd7_keys_init(int evm_id, int profile)
+{
+ int err;
+ setup_pin_mux(lcd7_keys_pin_mux);
+ err = platform_device_register(&beaglebone_lcd7_keys);
+ if (err)
+ pr_err("failed to register gpio keys for LCD7 cape\n");
+}
+
/*
* @evm_id - evm id which needs to be configured
* @dev_cfg - single evm structure which includes
@@ -1945,6 +2012,8 @@ static void beaglebone_cape_setup(struct memory_accessor *mem_acc, void *context
pr_info("BeagleBone cape: Registering PWM backlight for LCD cape\n");
enable_ehrpwm1(0,0);
beaglebone_tsadcpins_free = 0;
+ pr_info("BeagleBone cape: Registering gpio-keys for LCD cape\n");
+ beaglebone_lcd7_keys_init(0,0);
}
if (!strncmp("BB-BONE-LCD3-01", cape_config.partnumber, 15)) {
@@ -1953,6 +2022,10 @@ 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;
+ // gpio1_16 -> button
+ // gpio1_17 -> button
+ // gpio3_19 -> button
+ // gpio1_28 -> button
}
if (!strncmp("BB-BONE-VGA-01", cape_config.partnumber, 15)) {
@@ -1962,11 +2035,17 @@ static void beaglebone_cape_setup(struct memory_accessor *mem_acc, void *context
if (!strncmp("BB-BONE-BATT-01", cape_config.partnumber, 15)) {
pr_info("BeagleBone cape: initializing battery cape\n");
+ // gpio1_6, P9_15 lowbat output
+ // AIN4, P9_33 vbat
//foo_init(0,0);
}
if (!strncmp("BB-BONE-SERL", cape_config.partnumber, 12)) {
pr_info("BeagleBone cape: initializing serial cape\n");
+ // 01 -> CAN
+ // 02 -> Profibus
+ // 03 -> RS232
+ // 04 -> RS485
//foo_init(0,0);
}
--
1.7.7.6
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