This is a note to let you know that I've just added the patch titled drm: rcar-du: Fix build error to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-rcar-du-fix-build-error.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 5f9af404eec82981c4345c9943be48422234e7ab Mon Sep 17 00:00:00 2001 From: Daniel Gomez <dagmcr@xxxxxxxxx> Date: Mon, 18 May 2020 22:16:46 +0200 Subject: drm: rcar-du: Fix build error From: Daniel Gomez <dagmcr@xxxxxxxxx> commit 5f9af404eec82981c4345c9943be48422234e7ab upstream. Select DRM_KMS_HELPER dependency. Build error when DRM_KMS_HELPER is not selected: drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xd48): undefined reference to `drm_atomic_helper_bridge_duplicate_state' drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xd50): undefined reference to `drm_atomic_helper_bridge_destroy_state' drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xd70): undefined reference to `drm_atomic_helper_bridge_reset' drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xdc8): undefined reference to `drm_atomic_helper_connector_reset' drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xde0): undefined reference to `drm_helper_probe_single_connector_modes' drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xe08): undefined reference to `drm_atomic_helper_connector_duplicate_state' drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xe10): undefined reference to `drm_atomic_helper_connector_destroy_state' Fixes: c6a27fa41fab ("drm: rcar-du: Convert LVDS encoder code to bridge driver") Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Daniel Gomez <dagmcr@xxxxxxxxx> Reviewed-by: Emil Velikov <emil.l.velikov@xxxxxxxxx> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/rcar-du/Kconfig | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/rcar-du/Kconfig +++ b/drivers/gpu/drm/rcar-du/Kconfig @@ -23,6 +23,7 @@ config DRM_RCAR_DW_HDMI config DRM_RCAR_LVDS tristate "R-Car DU LVDS Encoder Support" depends on DRM && DRM_BRIDGE && OF + select DRM_KMS_HELPER select DRM_PANEL select OF_FLATTREE select OF_OVERLAY Patches currently in stable-queue which might be from dagmcr@xxxxxxxxx are queue-5.4/drm-rcar-du-fix-build-error.patch