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@@ -24,6 +24,8 @@
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/at73c213.h>
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+#include <linux/gpio_keys.h>
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+#include <linux/input.h>
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#include <linux/clk.h>
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#include <mach/hardware.h>
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@@ -218,6 +220,56 @@ static struct gpio_led ek_leds[] = {
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}
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};
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+
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+/*
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+ * GPIO Buttons
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+ */
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+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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+static struct gpio_keys_button ek_buttons[] = {
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+ {
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+ .gpio = AT91_PIN_PA30,
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+ .code = BTN_3,
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+ .desc = "Button 3",
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+ .active_low = 1,
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+ .wakeup = 1,
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+ },
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+ {
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+ .gpio = AT91_PIN_PA31,
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+ .code = BTN_4,
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+ .desc = "Button 4",
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+ .active_low = 1,
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+ .wakeup = 1,
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+ }
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+};
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+
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+static struct gpio_keys_platform_data ek_button_data = {
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+ .buttons = ek_buttons,
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+ .nbuttons = ARRAY_SIZE(ek_buttons),
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+};
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+
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+static struct platform_device ek_button_device = {
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+ .name = "gpio-keys",
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+ .id = -1,
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+ .num_resources = 0,
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+ .dev = {
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+ .platform_data = &ek_button_data,
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+ }
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+};
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+
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+static void __init ek_add_device_buttons(void)
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+{
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+ at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
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+ at91_set_deglitch(AT91_PIN_PA30, 1);
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+ at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
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+ at91_set_deglitch(AT91_PIN_PA31, 1);
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+
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+ platform_device_register(&ek_button_device);
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+}
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+#else
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+static void __init ek_add_device_buttons(void) {}
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+#endif
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+
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+
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static struct i2c_board_info __initdata ek_i2c_devices[] = {
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{
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I2C_BOARD_INFO("24c512", 0x50),
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@@ -245,6 +297,8 @@ static void __init ek_board_init(void)
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at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
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/* LEDs */
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at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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+ /* Push Buttons */
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+ ek_add_device_buttons();
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/* PCK0 provides MCLK to the WM8731 */
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at91_set_B_periph(AT91_PIN_PC1, 0);
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/* SSC (for WM8731) */
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