[PATCH V4 6/9] ARM: mxs: Provide regulator to pwm-backlight
From: Shawn Guo <hidden>
Date: 2013-03-20 03:13:26
Also in:
linux-samsung-soc, linux-tegra
On Tue, Mar 19, 2013 at 11:59:30AM -0700, Andrew Chew wrote:
quoted hunk ↗ jump to hunk
The pwm-backlight driver now takes a mandatory regulator that is gotten during driver probe. Initialize a dummy regulator to satisfy this requirement. Signed-off-by: Andrew Chew <redacted> --- arch/arm/boot/dts/imx23-evk.dts | 6 ++++++ arch/arm/boot/dts/imx28-apf28dev.dts | 6 ++++++ arch/arm/boot/dts/imx28-cfa10049.dts | 6 ++++++ arch/arm/boot/dts/imx28-evk.dts | 6 ++++++ arch/arm/boot/dts/imx28-tx28.dts | 6 ++++++ 5 files changed, 30 insertions(+)diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts index 035c13f..e48e36c 100644 --- a/arch/arm/boot/dts/imx23-evk.dts +++ b/arch/arm/boot/dts/imx23-evk.dts@@ -97,10 +97,16 @@ }; }; + bl_en: fixed-regulator {
The node name is too generic. Very likely we have other fixed regulator in a dts. For mxs, we have all such board level regulators defined in node "regulators" as children. Shawn
+ compatible = "regulator-fixed";
+ regulator-name = "bl-en-supply";
+ };
+
backlight {
compatible = "pwm-backlight";
pwms = <&pwm 2 5000000>;
brightness-levels = <0 4 8 16 32 64 128 255>;
default-brightness-level = <6>;
+ enable-supply = <&bl_en>;
};
};