ARM: dts: imx6qdl-sabresd: Add power key support

This patch adds support for imx6qdl-sabresd board's power
key, the key is named "SW1" on board, press it can wake up
system from suspend.

Add a new pinctrl entry for gpio keys and move all gpio
keys pin to this entry.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 5f53a50aad1724adb0be32204428898318bc292d..bdc00f974f07cd323fbeb9ab55f48cf8b093ada4 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -10,6 +10,8 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
+#include <dt-bindings/input/input.h>
+
 / {
        memory {
                reg = <0x10000000 0x40000000>;
@@ -51,19 +53,28 @@
 
        gpio-keys {
                compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_gpio_keys>;
+
+               power {
+                       label = "Power Button";
+                       gpios = <&gpio3 29 0>;
+                       gpio-key,wakeup;
+                       linux,code = <KEY_POWER>;
+               };
 
                volume-up {
                        label = "Volume Up";
                        gpios = <&gpio1 4 0>;
                        gpio-key,wakeup;
-                       linux,code = <115>; /* KEY_VOLUMEUP */
+                       linux,code = <KEY_VOLUMEUP>;
                };
 
                volume-down {
                        label = "Volume Down";
                        gpios = <&gpio1 5 0>;
                        gpio-key,wakeup;
-                       linux,code = <114>; /* KEY_VOLUMEDOWN */
+                       linux,code = <KEY_VOLUMEDOWN>;
                };
        };
 
@@ -176,8 +187,6 @@
        imx6qdl-sabresd {
                pinctrl_hog: hoggrp {
                        fsl,pins = <
-                               MX6QDL_PAD_GPIO_4__GPIO1_IO04   0x80000000
-                               MX6QDL_PAD_GPIO_5__GPIO1_IO05   0x80000000
                                MX6QDL_PAD_NANDF_D0__GPIO2_IO00 0x80000000
                                MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x80000000
                                MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x80000000
@@ -228,6 +237,14 @@
                        >;
                };
 
+               pinctrl_gpio_keys: gpio_keysgrp {
+                       fsl,pins = <
+                               MX6QDL_PAD_EIM_D29__GPIO3_IO29 0x80000000
+                               MX6QDL_PAD_GPIO_4__GPIO1_IO04  0x80000000
+                               MX6QDL_PAD_GPIO_5__GPIO1_IO05  0x80000000
+                       >;
+               };
+
                pinctrl_i2c1: i2c1grp {
                        fsl,pins = <
                                MX6QDL_PAD_CSI0_DAT8__I2C1_SDA          0x4001b8b1