This is a note to let you know that I've just added the patch titled drm/mediatek: dp: Add phy_mtk_dp module as pre-dependency to the 6.1-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-mediatek-dp-add-phy_mtk_dp-module-as-pre-depende.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit de676391fc162429c3f06c98018dc4406f31aaf7 Author: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx> Date: Tue Nov 21 09:29:27 2023 -0500 drm/mediatek: dp: Add phy_mtk_dp module as pre-dependency [ Upstream commit c8048dd0b07df68724805254b9e994d99e9a7af4 ] The mtk_dp driver registers a phy device which is handled by the phy_mtk_dp driver and assumes that the phy probe will complete synchronously, proceeding to make use of functionality exposed by that driver right away. This assumption however is false when the phy driver is built as a module, causing the mtk_dp driver to fail probe in this case. Add the phy_mtk_dp module as a pre-dependency to the mtk_dp module to ensure the phy module has been loaded before the dp, so that the phy probe happens synchrounously and the mtk_dp driver can probe successfully even with the phy driver built as a module. Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> Fixes: f70ac097a2cf ("drm/mediatek: Add MT8195 Embedded DisplayPort driver") Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> Reviewed-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx> Link: https://patchwork.kernel.org/project/dri-devel/patch/20231121142938.460846-1-nfraprado@xxxxxxxxxxxxx/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c index 2c850b6d945b..519e23a2a017 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -2669,3 +2669,4 @@ MODULE_AUTHOR("Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>"); MODULE_AUTHOR("Bo-Chen Chen <rex-bc.chen@xxxxxxxxxxxx>"); MODULE_DESCRIPTION("MediaTek DisplayPort Driver"); MODULE_LICENSE("GPL"); +MODULE_SOFTDEP("pre: phy_mtk_dp");