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authorDaiane Angolini <daiane.angolini@freescale.com>2011-06-30 14:41:46 -0300
committerSascha Hauer <s.hauer@pengutronix.de>2011-07-07 10:01:14 +0200
commit2a90a69f652edb410f7936d0271bfa8566ef6a87 (patch)
tree8e0a0a337075d58e0ab2384eccaef6464e18a6cd /arch/arm/mach-mx5
parentd23cb578cc7c520d17c6a995e78a7a05cb0abe72 (diff)
downloadtalos-obmc-linux-2a90a69f652edb410f7936d0271bfa8566ef6a87.tar.gz
talos-obmc-linux-2a90a69f652edb410f7936d0271bfa8566ef6a87.zip
ARM: mach-mx5/mx53_ard: Add gpio_keys support
Signed-off-by: Daiane Angolini <daiane.angolini@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx5')
-rw-r--r--arch/arm/mach-mx5/Kconfig1
-rw-r--r--arch/arm/mach-mx5/board-mx53_ard.c35
2 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index 6a47d4c9dd17..b4e7c58bbb38 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -216,6 +216,7 @@ config MACH_MX53_ARD
select IMX_HAVE_PLATFORM_IMX_I2C
select IMX_HAVE_PLATFORM_IMX_UART
select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
+ select IMX_HAVE_PLATFORM_GPIO_KEYS
help
Include support for MX53 ARD platform. This includes specific
configurations for the board and its peripherals.
diff --git a/arch/arm/mach-mx5/board-mx53_ard.c b/arch/arm/mach-mx5/board-mx53_ard.c
index 280cefc1a986..76a67c4a2a0b 100644
--- a/arch/arm/mach-mx5/board-mx53_ard.c
+++ b/arch/arm/mach-mx5/board-mx53_ard.c
@@ -39,6 +39,11 @@
#define ARD_SD1_CD IMX_GPIO_NR(1, 1)
#define ARD_SD1_WP IMX_GPIO_NR(1, 9)
#define ARD_I2CPORTEXP_B IMX_GPIO_NR(2, 3)
+#define ARD_VOLUMEDOWN IMX_GPIO_NR(4, 0)
+#define ARD_HOME IMX_GPIO_NR(5, 10)
+#define ARD_BACK IMX_GPIO_NR(5, 11)
+#define ARD_PROG IMX_GPIO_NR(5, 12)
+#define ARD_VOLUMEUP IMX_GPIO_NR(5, 13)
static iomux_v3_cfg_t mx53_ard_pads[] = {
/* UART1 */
@@ -91,6 +96,35 @@ static iomux_v3_cfg_t mx53_ard_pads[] = {
/* I2C3 */
MX53_PAD_GPIO_3__I2C3_SCL,
MX53_PAD_GPIO_16__I2C3_SDA,
+ /* GPIO */
+ MX53_PAD_DISP0_DAT16__GPIO5_10, /* home */
+ MX53_PAD_DISP0_DAT17__GPIO5_11, /* back */
+ MX53_PAD_DISP0_DAT18__GPIO5_12, /* prog */
+ MX53_PAD_DISP0_DAT19__GPIO5_13, /* vol up */
+ MX53_PAD_GPIO_10__GPIO4_0, /* vol down */
+};
+
+#define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \
+{ \
+ .gpio = gpio_num, \
+ .type = EV_KEY, \
+ .code = ev_code, \
+ .active_low = act_low, \
+ .desc = "btn " descr, \
+ .wakeup = wake, \
+}
+
+static struct gpio_keys_button ard_buttons[] = {
+ GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0),
+ GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0),
+ GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0),
+ GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0),
+ GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0),
+};
+
+static const struct gpio_keys_platform_data ard_button_data __initconst = {
+ .buttons = ard_buttons,
+ .nbuttons = ARRAY_SIZE(ard_buttons),
};
static struct resource ard_smsc911x_resources[] = {
@@ -199,6 +233,7 @@ static void __init mx53_ard_board_init(void)
imx53_add_imx2_wdt(0, NULL);
imx53_add_imx_i2c(1, &mx53_ard_i2c2_data);
imx53_add_imx_i2c(2, &mx53_ard_i2c3_data);
+ imx_add_gpio_keys(&ard_button_data);
}
static void __init mx53_ard_timer_init(void)
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