Re: [PATCH v2 2/3] arm64: dts: qcom: Rework X1-based Asus Zenbook A14's displays
From: Konrad Dybcio
Date: Sat Sep 27 2025 - 08:21:43 EST
On 9/26/25 9:08 AM, Aleksandrs Vinarskis wrote:
> The laptop comes in two variants:
>
> * UX3407RA, higher end, FHD+ OLED or WOXGA+ OLED panels
> * UX3407QA, lower end, FHD+ OLED or FHD+ LCD panels
>
> Even though all three panels work with "edp-panel", unfortunately the
> brightness adjustmenet of LCD panel is PWM based, requiring a dedicated
> device-tree. Convert "x1p42100-asus-zenbook-a14.dts" into ".dtsi" to
> allow for this split, introduce new LCD variant. Leave current variant
> without postfix and with the unchanged model name, as some distros
> (eg. Ubuntu) rely on this for automatic device-tree detection during
> kernel installation/upgrade.
>
> As dedicated device-tree is required, update compatibles of OLED
> variants to correct ones. Keep "edp-panel" as fallback, since it is
> enough to make the panels work.
>
> While at it moving .dts, .dtsi around, drop 'model' from the top level
> x1-asus-zenbook-a14.dtsi as well.
>
> Signed-off-by: Aleksandrs Vinarskis <alex@xxxxxxxxxxxxx>
> Co-developed-by: Jens Glathe <jens.glathe@xxxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Jens Glathe <jens.glathe@xxxxxxxxxxxxxxxxxxxxxx>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Konrad