Running IGT tests on Qualcomm Dragonboard820c uncovered two issues with the HDMI Connector implementation and with its integration into the drm_bridge_connector. Fix those issues. Note, I'm not fully satisfied with the drm_bridge_connector move. Maybe it's better to add drm_bridge_funcs::connector_reset() and call it from __drm_atomic_helper_connector_reset(). Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- Changes in v3: - Document the DRM_MODE_PROP_IMMUTABLE requirements currently exposed only via IGT tests (Maxime). - Move drm_bridge_connector to drm_display_helper. - Link to v2: https://lore.kernel.org/r/20240623-drm-bridge-connector-fix-hdmi-reset-v2-0-8590d44912ce@xxxxxxxxxx Changes in v2: - Actually pass the flags to drm_property_create_range(). - Link to v1: https://lore.kernel.org/r/20240623-drm-bridge-connector-fix-hdmi-reset-v1-0-41e9894dcdec@xxxxxxxxxx --- Dmitry Baryshkov (4): drm/drm_property: require DRM_MODE_PROP_IMMUTABLE for single-value props drm/connector: automatically set immutable flag for max_bpc property drm/bridge-connector: move to DRM_DISPLAY_HELPER module drm/bridge-connector: reset the HDMI connector state drivers/gpu/drm/Makefile | 1 - drivers/gpu/drm/bridge/Kconfig | 1 + drivers/gpu/drm/display/Kconfig | 7 +++++++ drivers/gpu/drm/display/Makefile | 2 ++ drivers/gpu/drm/{ => display}/drm_bridge_connector.c | 13 ++++++++++++- drivers/gpu/drm/drm_connector.c | 7 ++++++- drivers/gpu/drm/imx/dcss/Kconfig | 2 ++ drivers/gpu/drm/imx/lcdc/Kconfig | 2 ++ drivers/gpu/drm/ingenic/Kconfig | 2 ++ drivers/gpu/drm/kmb/Kconfig | 2 ++ drivers/gpu/drm/mediatek/Kconfig | 2 ++ drivers/gpu/drm/meson/Kconfig | 2 ++ drivers/gpu/drm/msm/Kconfig | 1 + drivers/gpu/drm/omapdrm/Kconfig | 2 ++ drivers/gpu/drm/renesas/rcar-du/Kconfig | 2 ++ drivers/gpu/drm/renesas/rz-du/Kconfig | 2 ++ drivers/gpu/drm/renesas/shmobile/Kconfig | 2 ++ drivers/gpu/drm/rockchip/Kconfig | 4 ++++ drivers/gpu/drm/tegra/Kconfig | 1 + drivers/gpu/drm/tidss/Kconfig | 2 ++ drivers/gpu/drm/xlnx/Kconfig | 1 + include/drm/drm_property.h | 3 +++ 22 files changed, 60 insertions(+), 3 deletions(-) --- base-commit: 82e4255305c554b0bb18b7ccf2db86041b4c8b6e change-id: 20240623-drm-bridge-connector-fix-hdmi-reset-0ce86af053aa Best regards, -- Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
