[PATCH v4 10/11] ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm
From: Philip, Avinash <hidden>
Date: 2012-11-21 13:16:13
Also in:
linux-arm-kernel, linux-omap, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
PWM output from ecap0 uses as backlight source. Also adds low threshold value to have a uniform divisions in brightness-levels scales. Signed-off-by: Philip, Avinash <redacted> --- Changes since v3: - Add epwmss parent status="okay" field. :100644 100644 9f65f17... 4178ba4c.. M arch/arm/boot/dts/am335x-evm.dts arch/arm/boot/dts/am335x-evm.dts | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 9f65f17..4178ba4 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts@@ -44,6 +44,12 @@ 0x154 0x27 /* spi0_d0.gpio0_3, INPUT | MODE7 */ >; }; + + ecap0_pins: backlight_pins { + pinctrl-single,pins = < + 0x164 0x0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */ + >; + }; }; ocp {
@@ -102,6 +108,16 @@ reg = <0x48>; }; }; + + epwmss0: epwmss@48300000 { + status = "okay"; + + ecap0: ecap@48300100 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&ecap0_pins>; + }; + }; }; vbat: fixedregulator@0 {
@@ -158,6 +174,13 @@ gpio-key,wakeup; }; }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&ecap0 0 50000 0>; + brightness-levels = <0 51 53 56 62 75 101 152 255>; + default-brightness-level = <8>; + }; }; /include/ "tps65910.dtsi"
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1.7.0.4