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@vger.kernel.org # 6.17 Signed-off-by: Alexey Minnekhanov alexeymin@postmarketos.org
arch/arm64/boot/dts/qcom/sdm630.dtsi | 1 + 1 file changed, 1 insertion(+)
Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@oss.qualcomm.com