[PATCH V4 6/9] ARM: mxs: Provide regulator to pwm-backlight

[Shawn Guo]

On Tue, Mar 19, 2013 at 11:59:30AM -0700, Andrew Chew wrote:
> The pwm-backlight driver now takes a mandatory regulator that is gotten
> during driver probe.  Initialize a dummy regulator to satisfy this
> requirement.
> 
> Signed-off-by: Andrew Chew <achew at nvidia.com>
> ---
>  arch/arm/boot/dts/imx23-evk.dts      | 6 ++++++
>  arch/arm/boot/dts/imx28-apf28dev.dts | 6 ++++++
>  arch/arm/boot/dts/imx28-cfa10049.dts | 6 ++++++
>  arch/arm/boot/dts/imx28-evk.dts      | 6 ++++++
>  arch/arm/boot/dts/imx28-tx28.dts     | 6 ++++++
>  5 files changed, 30 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
> index 035c13f..e48e36c 100644
> --- a/arch/arm/boot/dts/imx23-evk.dts
> +++ b/arch/arm/boot/dts/imx23-evk.dts
> @@ -97,10 +97,16 @@
>  		};
>  	};
>  
> +	bl_en: fixed-regulator {

The node name is too generic.  Very likely we have other fixed regulator
in a dts.

For mxs, we have all such board level regulators defined in node
"regulators" as children.

Shawn

> +		compatible = "regulator-fixed";
> +		regulator-name = "bl-en-supply";
> +        };
> +
>  	backlight {
>  		compatible = "pwm-backlight";
>  		pwms = <&pwm 2 5000000>;
>  		brightness-levels = <0 4 8 16 32 64 128 255>;
>  		default-brightness-level = <6>;
> +		enable-supply = <&bl_en>;
>  	};
>  };