This panel driver uses DSC PPS functions and as such depends on the DRM_DISPLAY_DP_HELPER. Select this symbol to make required functions available to the driver. Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202404200800.kYsRYyli-lkp@xxxxxxxxx/ Fixes: 069a6c0e94f9 ("drm: panel: Add LG sw43408 panel driver") Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- drivers/gpu/drm/panel/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 982324ef5a41..2ae0eb0638f3 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -340,6 +340,8 @@ config DRM_PANEL_LG_SW43408 depends on OF depends on DRM_MIPI_DSI depends on BACKLIGHT_CLASS_DEVICE + select DRM_DISPLAY_DP_HELPER + select DRM_DISPLAY_HELPER help Say Y here if you want to enable support for LG sw43408 panel. The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per -- 2.39.2
