ARM: dts: imx6qdl-sabreauto: add gpio keys support

Add i.MX6QDL SabreAuto board's gpio keys support, there
are 5 gpio keys on base board:

SW3: KEY_HOME;
SW4: KEY_BACK;
SW5: KEY_PROGRAM;
SW6: KEY_VOLUMEUP;
SW7: KEY_VOLUMEDOWN;

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index 9f11f1f..246af86 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -4,6 +4,7 @@
 // Copyright 2011 Linaro Ltd.
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
        chosen {
@@ -25,6 +26,47 @@
                };
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_gpio_keys>;
+
+               home {
+                       label = "Home";
+                       gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_HOME>;
+                       wakeup-source;
+               };
+
+               back {
+                       label = "Back";
+                       gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_BACK>;
+                       wakeup-source;
+               };
+
+               program {
+                       label = "Program";
+                       gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_PROGRAM>;
+                       wakeup-source;
+               };
+
+               volume-up {
+                       label = "Volume Up";
+                       gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_VOLUMEUP>;
+                       wakeup-source;
+               };
+
+               volume-down {
+                       label = "Volume Down";
+                       gpios = <&gpio5 14 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_VOLUMEDOWN>;
+                       wakeup-source;
+               };
+       };
+
        clocks {
                codec_osc: anaclk2 {
                        compatible = "fixed-clock";
@@ -446,6 +488,16 @@
                        >;
                };
 
+               pinctrl_gpio_keys: gpiokeysgrp {
+                       fsl,pins = <
+                               MX6QDL_PAD_SD2_CMD__GPIO1_IO11          0x1b0b0
+                               MX6QDL_PAD_SD2_DAT3__GPIO1_IO12         0x1b0b0
+                               MX6QDL_PAD_SD4_DAT4__GPIO2_IO12         0x1b0b0
+                               MX6QDL_PAD_SD4_DAT7__GPIO2_IO15         0x1b0b0
+                               MX6QDL_PAD_DISP0_DAT20__GPIO5_IO14      0x1b0b0
+                       >;
+               };
+
                pinctrl_gpio_leds: gpioledsgrp {
                        fsl,pins = <
                                MX6QDL_PAD_DISP0_DAT21__GPIO5_IO15      0x80000000