Messages in this thread Patch in this message | | | From | Philip Avinash <> | Subject | [PATCH 6/7] ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm | Date | Wed, 2 Jan 2013 18:54:53 +0530 |
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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 <avinashphilip@ti.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> --- arch/arm/boot/dts/am335x-evm.dts | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index d649644..fd3b691 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" -- 1.7.9.5
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