Skip to contentSkip to conversation

ARM: dts: imx6sx-sdb: add gpio key support

PATCH New Anson Huang 2 participants 2 messages Jun 20, 2014 – Jun 21, 2014

Subsystems (2)
Device tree bindings Arm i.MX and Layerscape
lore
Share & tools
lore

Anson Huang

author
#0 lore raw

PATCH 1/1 ARM: dts: imx6sx-sdb: add gpio key support

This patch adds support for imx6sx-sdb board's gpio keys:

SW4(FUNC1): KEY_VOLUMEUP
SW5(FUNC2): KEY_VOLUMEDOWN

Signed-off-by Anson Huang <[email protected]>
---
 arch/arm/boot/dts/imx6sx-sdb.dts |   27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
arch/arm/boot/dts/imx6sx-sdb.dts +27 -0
index 9906f65..e082e84 100644
@@ -8,6 +8,8 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include "imx6sx.dtsi"
 
 / {

@@ -18,6 +20,24 @@
 		stdout-path = &uart1;
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_keys>;
+
+		volume-up {
+			label = "Volume Up";
+			gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEUP>;
+		};
+
+		volume-down {
+			label = "Volume Down";
+			gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEDOWN>;
+		};
+	};
+
 	memory {
 		reg = <0x80000000 0x40000000>;
 	};

@@ -114,6 +134,13 @@
 			>;
 		};
 
+		pinctrl_gpio_keys: gpio_keysgrp {
+			fsl,pins = <
+				MX6SX_PAD_CSI_DATA04__GPIO1_IO_18 0x17059
+				MX6SX_PAD_CSI_DATA05__GPIO1_IO_19 0x17059
+			>;
+		};
+
 		pinctrl_vcc_sd3: vccsd3grp {
 			fsl,pins = <
 				MX6SX_PAD_KEY_COL1__GPIO2_IO_11		0x17059
Signature · 1 line
1.7.9.5
#1 lore raw

PATCH 1/1 ARM: dts: imx6sx-sdb: add gpio key support

Quoted 38 lines · Anson Huang

This patch adds support for imx6sx-sdb board's gpio keys:

SW4(FUNC1): KEY_VOLUMEUP
SW5(FUNC2): KEY_VOLUMEDOWN

Signed-off-by Anson Huang <[email protected]>
---
 arch/arm/boot/dts/imx6sx-sdb.dts |   27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
arch/arm/boot/dts/imx6sx-sdb.dts +13 -0
index 9906f65..e082e84 100644
@@ -8,6 +8,8 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include "imx6sx.dtsi"
 
 / {

@@ -18,6 +20,24 @@
 		stdout-path = &uart1;
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_keys>;
+
+		volume-up {
+			label = "Volume Up";
+			gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEUP>;
+		};
+

arch/arm/boot/dts/imx6sx-sdb.dts line 43

Quoted 10 lines
arch/arm/boot/dts/imx6sx-sdb.dts +7 -0
+		volume-down {
+			label = "Volume Down";
+			gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEDOWN>;
+		};
+	};
+
 	memory {
 		reg = <0x80000000 0x40000000>;
 	};

We generally have 'chosen' and 'memory' at the top of the board dts. So I applied the patch after switching the order between 'gpio-keys' and 'memory'.

Shawn

Quoted 17 lines
arch/arm/boot/dts/imx6sx-sdb.dts +7 -0
@@ -114,6 +134,13 @@
 			>;
 		};
 
+		pinctrl_gpio_keys: gpio_keysgrp {
+			fsl,pins = <
+				MX6SX_PAD_CSI_DATA04__GPIO1_IO_18 0x17059
+				MX6SX_PAD_CSI_DATA05__GPIO1_IO_19 0x17059
+			>;
+		};
+
 		pinctrl_vcc_sd3: vccsd3grp {
 			fsl,pins = <
 				MX6SX_PAD_KEY_COL1__GPIO2_IO_11		0x17059
Signature · 1 line
1.7.9.5