[PATCH] ARM: dts: imx6qdl-sabresd: Provide a backlight regulator
From: Fabio Estevam <hidden>
Date: 2013-11-21 17:16:39
Subsystem:
the rest · Maintainer:
Linus Torvalds
Without providing the backlight regulator the following error is seen: pwm-backlight backlight.14: dummy supplies not allowed ,and LVDS screen is blank. Provide a dummy backlight regulator, so that the LVDS panel can be functional again. Signed-off-by: Fabio Estevam <redacted> --- Tested on linux-next 20131120 arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 4239ef9..07206d2 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi@@ -47,6 +47,15 @@ gpio = <&gpio4 10 0>; enable-active-high; }; + + reg_backlight: regulator at 3 { + compatible = "regulator-fixed"; + reg = <3>; + regulator-name = "lcd-supply"; + regulator-min-microvolt = <3200000>; + regulator-max-microvolt = <3200000>; + regulator-always-on; + }; }; gpio-keys {
@@ -91,6 +100,7 @@ pwms = <&pwm1 0 5000000>; brightness-levels = <0 4 8 16 32 64 128 255>; default-brightness-level = <7>; + power-supply = <®_backlight>; status = "okay"; }; };
--
1.8.1.2