@@ -5,6 +5,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
+#include <dt-bindings/input/input.h>
#include "elpida_ecb240abacn.dtsi"
/ {
@@ -43,6 +44,21 @@
};
};
+ gpio_keys: gpio_keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <
+ &button_pins
+ >;
+
+ buttonS2 {
+ label = "button S2";
+ gpios = <&gpio4 25 GPIO_ACTIVE_LOW>; /* gpio_121 */
+ linux,code = <BTN_0>;
+ wakeup-source;
+ };
+ };
+
sound: sound {
compatible = "ti,abe-twl6040";
ti,model = "PandaBoard";
@@ -357,6 +373,12 @@
OMAP4_IOPAD(0x152, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat3.sdmmc5_dat3 */
>;
};
+
+ button_pins: pinmux_button_pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x114, PIN_INPUT_PULLUP | MUX_MODE3) /* gpio_121 */
+ >;
+ };
};
&omap4_pmx_wkup {
@@ -46,6 +46,12 @@
OMAP4_IOPAD(0x0f6, PIN_OUTPUT | MUX_MODE3) /* gpio_110 */
>;
};
+
+ button_pins: pinmux_button_pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x11b, PIN_INPUT_PULLUP | MUX_MODE3) /* gpio_113 */
+ >;
+ };
};
&led_wkgpio_pins {
@@ -68,6 +74,12 @@
};
};
+&gpio_keys {
+ buttonS2 {
+ gpios = <&gpio4 17 GPIO_ACTIVE_LOW>; /* gpio_113 */
+ };
+};
+
&gpio1 {
ti,no-reset-on-init;
};
The PandaBoard has a user button connected to GPIO. On the ES this is connected to GPIO 113, on all the other Panda editons this is GPIO 121. Signed-off-by: Peter Robinson <pbrobinson@gmail.com> --- arch/arm/boot/dts/omap4-panda-common.dtsi | 22 ++++++++++++++++++++++ arch/arm/boot/dts/omap4-panda-es.dts | 12 ++++++++++++ 2 files changed, 34 insertions(+)