Re: [PATCH v2 3/3] arm64: dts: qcom: sdm630: Add missing MDSS reset

[Dmitry Baryshkov]

On Sun, Nov 16, 2025 at 04:12:35AM +0300, Alexey Minnekhanov wrote:
> If the OS does not support recovering the state left by the
> bootloader it needs a way to reset display hardware, so that it can
> start from a clean state. Add a reference to the relevant reset.
> 
> It fixes display init issue appeared in Linux v6.17: without reset
> device boots into black screen and you need to turn display off/on
> to "fix" it. Also sometimes it can boot into solid blue color
> with these messages in kernel log:
> 
>   hw recovery is not complete for ctl:2
>   [drm:dpu_encoder_phys_vid_prepare_for_kickoff:569] [dpu error]enc33
>       intf1 ctl 2 reset failure: -22
>   [drm:dpu_encoder_frame_done_timeout:2727] [dpu error]enc33 frame
>       done timeout
> 
> Fixes: 0e789b491ba0 ("pmdomain: core: Leave powered-on genpds on until sync_state")
> Cc: <stable@xxxxxxxxxxxxxxx> # 6.17
> Signed-off-by: Alexey Minnekhanov <alexeymin@xxxxxxxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sdm630.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>


-- 
With best wishes
Dmitry