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| author | Philip Avinash <avinashphilip@ti.com> | 2013-06-06 17:52:38 +0400 |
|---|---|---|
| committer | Benoit Cousson <benoit.cousson@linaro.org> | 2013-06-19 03:53:47 +0400 |
| commit | 6993fd01ebf2985e0c67088b47559bc513f2840b (patch) | |
| tree | 8053e91d5fa507c2b2340ac970ac030b621ce465 | |
| parent | 0a7486c93ed3355efee8e7e10ca370c2d83d8df9 (diff) | |
| download | linux-6993fd01ebf2985e0c67088b47559bc513f2840b.tar.xz | |
ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm
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>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
| -rw-r--r-- | 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 2c5324703c7b..a150d0441b5e 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -91,6 +91,12 @@ 0x9c (PIN_OUTPUT | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */ >; }; + + ecap0_pins: backlight_pins { + pinctrl-single,pins = < + 0x164 0x0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */ + >; + }; }; ocp { @@ -163,6 +169,16 @@ status = "okay"; }; + epwmss0: epwmss@48300000 { + status = "okay"; + + ecap0: ecap@48300100 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&ecap0_pins>; + }; + }; + gpmc: gpmc@50000000 { status = "okay"; pinctrl-names = "default"; @@ -299,6 +315,13 @@ 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" |