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authorAlberto Panizzo2009-10-15 19:24:51 +0200
committerSascha Hauer2009-11-14 10:29:12 +0100
commite33c049cb540602a2554264652e2c717ab7f5ec3 (patch)
treee5c7136cd4baab9f3d964fb7829306b1d1a7b8c5
parent115b40c3d7d18d0cb48b4ba306807cc04f259316 (diff)
Armadillo500 Add support for onboard GPIO Buttons.
There are two low active Buttons on boards. This patch connect those to the Input Subsystem over gpio-keys driver. Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--arch/arm/mach-mx3/armadillo5x0.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/armadillo5x0.c b/arch/arm/mach-mx3/armadillo5x0.c
index 776c0ee1b3cd..309fa7abc099 100644
--- a/arch/arm/mach-mx3/armadillo5x0.c
+++ b/arch/arm/mach-mx3/armadillo5x0.c
@@ -33,6 +33,8 @@
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/io.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@@ -98,6 +100,36 @@ static int armadillo5x0_pins[] = {
MX31_PIN_DRDY0__DRDY0,
IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
};
+/* GPIO BUTTONS */
+static struct gpio_keys_button armadillo5x0_buttons[] = {
+ {
+ .code = KEY_ENTER, /*28*/
+ .gpio = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
+ .active_low = 1,
+ .desc = "menu",
+ .wakeup = 1,
+ }, {
+ .code = KEY_BACK, /*158*/
+ .gpio = IOMUX_TO_GPIO(MX31_PIN_SRST0),
+ .active_low = 1,
+ .desc = "back",
+ .wakeup = 1,
+ }
+};
+
+static struct gpio_keys_platform_data armadillo5x0_button_data = {
+ .buttons = armadillo5x0_buttons,
+ .nbuttons = ARRAY_SIZE(armadillo5x0_buttons),
+};
+
+static struct platform_device armadillo5x0_button_device = {
+ .name = "gpio-keys",
+ .id = -1,
+ .num_resources = 0,
+ .dev = {
+ .platform_data = &armadillo5x0_button_data,
+ }
+};
/*
* NAND Flash
@@ -300,6 +332,7 @@ static struct imxuart_platform_data uart_pdata = {
static struct platform_device *devices[] __initdata = {
&armadillo5x0_smc911x_device,
+ &armadillo5x0_button_device,
};
/*