Re: [PATCH] ARM: dts: imx6sx-sdb: Add DRM panel, power-enable and backlight support

From: Fabio Estevam
Date: Fri Dec 01 2017 - 15:27:21 EST


The Subject could be improved to something like: Convert from fbdev to
drm bindings

On Thu, Nov 30, 2017 at 11:02 AM, Marco Franchi <marco.franchi@xxxxxxx> wrote:
> It is preferred to use the panel compatible string rather than passing
> the LCD timming in the device tree.

Typo: timing

>
> So pass the "sii,43wvf1g" compatible string, a new driver for the Seiko
> Panel, which describes the parallel LCD.

Please remove the "a new driver for the Seiko Panel".

>
> This new driver needs two power supply, so pass 'dvdd-supply' and
> 'avdd-supply', which makes the kernel to turn on the LCD on is own.

I would remove this too.

>
> Also, pass the 'backlight' property as described in
> Documentation/devicetree/bindings/display/panel/simple-panel.txt
>
> Signed-off-by: Marco Franchi <marco.franchi@xxxxxxx>
> ---
> arch/arm/boot/dts/imx6sx-sdb.dtsi | 49 ++++++++++++++++++++-------------------
> 1 file changed, 25 insertions(+), 24 deletions(-)
>
> diff --git a/arch/arm/boot/dts/imx6sx-sdb.dtsi b/arch/arm/boot/dts/imx6sx-sdb.dtsi
> index da81552..3a597a4 100644
> --- a/arch/arm/boot/dts/imx6sx-sdb.dtsi
> +++ b/arch/arm/boot/dts/imx6sx-sdb.dtsi
> @@ -24,7 +24,7 @@
> reg = <0x80000000 0x40000000>;
> };
>
> - backlight {
> + backlight_display: backlight-display {
> compatible = "pwm-backlight";
> pwms = <&pwm3 0 5000000>;
> brightness-levels = <0 4 8 16 32 64 128 255>;
> @@ -129,6 +129,14 @@
> regulator-max-microvolt = <3300000>;
> gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
> };
> +
> + reg_lcd_5v: regulator@7 {
> + compatible = "regulator-fixed";
> + reg = <7>;
> + regulator-name = "lcd-5v0";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + };

I have sent a patch that removes the regulators from simple-panel.

Please use linux-next when you send a v2.