Re: [PATCH 3/3] ARM: logicpd-torpedo-37xx-devkit-28: Reference new DRM panel

From: Sam Ravnborg
Date: Sat Sep 21 2019 - 15:09:49 EST


Hi Adam.

On Tue, Sep 17, 2019 at 11:12:13AM -0500, Adam Ford wrote:
> With the removal of the panel-dpi from the omap drivers, the
> LCD no longer works. This patch points the device tree to
> a newly created panel named "logicpd,type28"
>
> Fixes: 8bf4b1621178 ("drm/omap: Remove panel-dpi driver")
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
Looks good.
One nit below.

With this addressed:

Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>

Sam
>
> diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit-28.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit-28.dts
> index 07ac99b9cda6..00c426bd51a0 100644
> --- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit-28.dts
> +++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit-28.dts
> @@ -11,22 +11,8 @@
> #include "logicpd-torpedo-37xx-devkit.dts"
>
> &lcd0 {
> -
> + /* This isn't the exact LCD, but the timings meet spec */
> + /* To make it work, set CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=4 */
> + compatible = "logicpd,type28";
> label = "28";
You left this property - but us it documented and what use has it?

> -
> - panel-timing {
> - clock-frequency = <9000000>;
> - hactive = <480>;
> - vactive = <272>;
> - hfront-porch = <3>;
> - hback-porch = <2>;
> - hsync-len = <42>;
> - vback-porch = <3>;
> - vfront-porch = <2>;
> - vsync-len = <11>;
> - hsync-active = <1>;
> - vsync-active = <1>;
> - de-active = <1>;
> - pixelclk-active = <0>;
> - };
> };
> --
> 2.17.1