Add PWM backlight node for exynos5250 and enable the same on exynos5250
based snow board.
Signed-off-by: Olof Johansson <olof@xxxxxxxxx>
Signed-off-by: Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 7 +++++++
arch/arm/boot/dts/exynos5250-snow.dts | 5 +++++
arch/arm/boot/dts/exynos5250.dtsi | 10 ++++++++++
3 files changed, 22 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
index 9a49e68..2a4680c 100644
--- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
@@ -351,6 +351,13 @@
samsung,pin-drv = <0>;
};
+ backlight_pwm: backlight-pwm {
+ samsung,pins = "gpb2-0";
+ samsung,pin-function = <2>;
+ samsung,pin-pud = <0>;
+ samsung,pin-drv = <0>;
+ };
+
i2c7_bus: i2c7-bus {
samsung,pins = "gpb2-2", "gpb2-3";
samsung,pin-function = <3>;
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 1ce1088..9fcd3e8 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -206,4 +206,9 @@
clock-frequency = <24000000>;
};
};
+
+ backlight {
+ status = "okay";
+ };
+
};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 3742331..89a9955 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -593,6 +593,16 @@
clock-names = "timers";
};
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm 0 1000000 0>;
+ brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
+ default-brightness-level = <7>;
+ pinctrl-0 = <&backlight_pwm>;
+ pinctrl-names = "default";
+ status = "disabled";
+ };
+
amba {
#address-cells = <1>;
#size-cells = <1>;
--
1.7.9.5
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