This patch adds support for the standard push buttons available on
Overo expansion boards.
Signed-off-by: Steve Sakoman <st...@sakoman.com>
---
arch/arm/mach-omap2/board-overo.c | 42 +++++++++++++++++++++++++++++++++++++
1 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-overo.c
b/arch/arm/mach-omap2/board-overo.c
index adc204b..f39d983 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -519,6 +519,47 @@ static void __init overo_init_led(void)
static inline void __init overo_init_led(void) { return; }
#endif
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+static struct gpio_keys_button gpio_buttons[] = {
+ {
+ .code = BTN_0,
+ .gpio = 23,
+ .desc = "button0",
+ .wakeup = 1,
+ },
+ {
+ .code = BTN_1,
+ .gpio = 14,
+ .desc = "button1",
+ .wakeup = 1,
+ },
+};
+
+static struct gpio_keys_platform_data gpio_keys_pdata = {
+ .buttons = gpio_buttons,
+ .nbuttons = ARRAY_SIZE(gpio_buttons),
+};
+
+static struct platform_device gpio_keys_device = {
+ .name = "gpio-keys",
+ .id = -1,
+ .dev = {
+ .platform_data = &gpio_keys_pdata,
+ },
+};
+
+static void __init overo_init_keys(void)
+{
+ platform_device_register(&gpio_keys_device);
+}
+
+#else
+static inline void __init overo_init_keys(void) { return; }
+#endif
+
static int overo_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
@@ -699,6 +740,7 @@ static void __init overo_init(void)
overo_init_smsc911x();
overo_display_init();
overo_init_led();
+ overo_init_keys();
/* Ensure SDRC pins are mux'd for self-refresh */
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
--
1.7.0.4
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