[3/3] ARM: dts: Addition of binding for gpio switches on peach-pi
diff mbox

Message ID 1449250275-23435-4-git-send-email-martyn.welch@collabora.co.uk
State New, archived
Headers show

Commit Message

Martyn Welch Dec. 4, 2015, 5:31 p.m. UTC
The peach pi has a GPIO connected to the firmware write protect, developer
mode and recovery mode lines (which are primarily controlled via external
switches on developer test board). This patch adds the required nodes to
the device tree to configure the pinmuxing and allow these to be read from
user space.

Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
---
 arch/arm/boot/dts/exynos5800-peach-pi.dts | 46 +++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

Patch
diff mbox

diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 49a4f43..2937372 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -53,6 +53,31 @@ 
 		};
 	};
 
+	gpio-switch {
+		compatible = "gpio-switch";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&wp_gpio &dev_mode &rec_mode>;
+
+		write-protect {
+			label = "write-protect";
+			gpios = <&gpx3 0 GPIO_ACTIVE_LOW>;
+			read-only;
+		};
+
+		developer-switch {
+			label = "developer-switch";
+			gpios = <&gpx1 3 GPIO_ACTIVE_HIGH>;
+			read-only;
+		};
+
+		recovery-switch {
+			label = "recovery-switch";
+			gpios = <&gpx0 7 GPIO_ACTIVE_LOW>;
+			read-only;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
@@ -731,6 +756,13 @@ 
 		samsung,pin-val = <0>;
 	};
 
+	rec_mode: rec-mode {
+		samsung,pins = "gpx0-7";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	tpm_irq: tpm-irq {
 		samsung,pins = "gpx1-0";
 		samsung,pin-function = <0>;
@@ -752,6 +784,13 @@ 
 		samsung,pin-drv = <0>;
 	};
 
+	dev_mode: dev-mode {
+		samsung,pins = "gpx1-3";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <3>;
+		samsung,pin-drv = <0>;
+	};
+
 	ec_irq: ec-irq {
 		samsung,pins = "gpx1-5";
 		samsung,pin-function = <0>;
@@ -773,6 +812,13 @@ 
 		samsung,pin-drv = <0>;
 	};
 
+	wp_gpio: wp_gpio {
+		samsung,pins = "gpx3-0";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	max77802_irq: max77802-irq {
 		samsung,pins = "gpx3-1";
 		samsung,pin-function = <0>;