[PATCH 6/6] ARM: OMAP2+: dts: cm-t335: add support for PWM backlight

[Uri Mashiach]

Gentle ping

On 27/10/15 14:15, Uri Mashiach wrote:
> From: Ilya Ledvich <ilya at compulab.co.il>
>
> Add pinmux configuration for ECAP0 pin.
> Add node for PWM backlight device.
> Use PWM output from ecap0 as backlight source.
>
> Acked-by: Igor Grinberg <grinberg at compulab.co.il>
> Signed-off-by: Ilya Ledvich <ilya at compulab.co.il>
> Signed-off-by: Uri Mashiach <uri.mashiach at compulab.co.il>
> ---
>   arch/arm/boot/dts/am335x-cm-t335.dts | 24 ++++++++++++++++++++++++
>   1 file changed, 24 insertions(+)
>
> diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts
> index 0296d3f..571a453 100644
> --- a/arch/arm/boot/dts/am335x-cm-t335.dts
> +++ b/arch/arm/boot/dts/am335x-cm-t335.dts
> @@ -39,6 +39,13 @@
>   		regulator-min-microvolt = <3300000>;
>   		regulator-max-microvolt = <3300000>;
>   	};
> +
> +	backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&ecap0 0 50000 0>;
> +		brightness-levels = <0 51 53 56 62 75 101 152 255>;
> +		default-brightness-level = <8>;
> +	};
>   };
>
>   &am33xx_pinmux {
> @@ -113,6 +120,13 @@
>   		>;
>   	};
>
> +	ecap0_pins: pinmux_ecap0_pins {
> +		pinctrl-single,pins = <
> +			/* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
> +			0x164 0x0
> +		>;
> +	};
> +
>   	cpsw_default: cpsw_default {
>   		pinctrl-single,pins = <
>   			/* Slave 1 */
> @@ -222,6 +236,16 @@
>   	};
>   };
>
> +&epwmss0 {
> +	status = "okay";
> +
> +	ecap0: ecap at 48300100 {
> +		status = "okay";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&ecap0_pins>;
> +	};
> +};
> +
>   &gpmc {
>   	status = "okay";
>   	pinctrl-names = "default";
>