Patchwork [V6,8/9] ARM: tegra: Provide regulator to pwm-backlight

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Submitter achew@nvidia.com
Date April 1, 2013, 9:53 p.m.
Message ID <1364853208-32503-9-git-send-email-achew@nvidia.com>
Download mbox | patch
Permalink /patch/232816/
State Not Applicable, archived
Headers show

Comments

achew@nvidia.com - April 1, 2013, 9:53 p.m.
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 <achew@nvidia.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra20-medcom-wide.dts |  1 +
 arch/arm/boot/dts/tegra20-tamonten.dtsi   | 10 ++++++++++
 2 files changed, 11 insertions(+)

Patch

diff --git a/arch/arm/boot/dts/tegra20-medcom-wide.dts b/arch/arm/boot/dts/tegra20-medcom-wide.dts
index a2d6d65..90d665e 100644
--- a/arch/arm/boot/dts/tegra20-medcom-wide.dts
+++ b/arch/arm/boot/dts/tegra20-medcom-wide.dts
@@ -32,6 +32,7 @@ 
 
 		brightness-levels = <0 4 8 16 32 64 128 255>;
 		default-brightness-level = <6>;
+		power-supply = <&backlight_power_reg>;
 	};
 
 	sound {
diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi b/arch/arm/boot/dts/tegra20-tamonten.dtsi
index 6e9d91f..1ea3e42 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -485,5 +485,15 @@ 
 			regulator-max-microvolt = <5000000>;
 			regulator-always-on;
 		};
+
+		backlight_power_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "lcd_bl_en";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio 13 0>; /* gpio PB5 */
+			enable-active-high;
+		};
 	};
 };