On Fri, Oct 21, 2016 at 9:33 AM, <aford173@xxxxxxxxx> wrote:
> From: Adam Ford <aford173@xxxxxxxxx>
>
> The backlight bindings require a regulator. If one is missing, the
> system generates an warning. This patch creates a dummy regulator
> for the backlight to eliminate this warning.
>
Tony, Please disregard this patch. It seems to work without the
patch, and it's causing some other issues.
Sorry to waste everyone's time.
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
>
> diff --git a/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts
> index da85984..9276070 100644
> --- a/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts
> +++ b/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts
> @@ -144,6 +144,12 @@
> };
> };
>
> + backlight_reg: backlight_reg {
> + regulator-name = "backlight-supply";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + };
> +
> bl: backlight {
> compatible = "pwm-backlight";
> pinctrl-names = "default";
> @@ -151,6 +157,7 @@
> pwms = <&twl_pwm 0 5000000>;
> brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
> default-brightness-level = <7>;
> + power-supply = <&backlight_reg>;
> enable-gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>; /* gpio_8 */
> };
> };
> diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
> index 08cce17..8741c47 100644
> --- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
> +++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
> @@ -177,6 +177,12 @@
> };
> };
>
> + backlight_reg: backlight_reg {
> + regulator-name = "backlight-supply";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + };
> +
> bl: backlight {
> compatible = "pwm-backlight";
> pinctrl-names = "default";
> @@ -184,6 +190,7 @@
> pwms = <&pwm10 0 5000000 0>;
> brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
> default-brightness-level = <7>;
> + power-supply = <&backlight_reg>;
> enable-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>; /* gpio_154 */
> };
> };
> --
> 2.7.4
>
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