| Message ID | 20240715-drm-bridge-connector-fix-hdmi-reset-v4-5-61e6417cfd99@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm: fix two issues related to HDMI Connector implementation | expand |
On Mon, 15 Jul 2024 09:33:05 +0300, Dmitry Baryshkov wrote: > On HDMI connectors which use drm_bridge_connector and DRM_BRIDGE_OP_HDMI > IGT chokes on the max_bpc property in several kms_properties tests due > to the drm_bridge_connector failing to reset HDMI-related > properties. > > > [ ... ] Acked-by: Maxime Ripard <mripard@kernel.org> Thanks! Maxime
diff --git a/drivers/gpu/drm/display/Kconfig b/drivers/gpu/drm/display/Kconfig index 8c174ceb0c4d..3763649ba251 100644 --- a/drivers/gpu/drm/display/Kconfig +++ b/drivers/gpu/drm/display/Kconfig @@ -15,6 +15,7 @@ if DRM_DISPLAY_HELPER config DRM_BRIDGE_CONNECTOR bool + select DRM_DISPLAY_HDMI_STATE_HELPER help DRM connector implementation terminating DRM bridge chains. diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c index 0869b663f17e..7ebb35438459 100644 --- a/drivers/gpu/drm/display/drm_bridge_connector.c +++ b/drivers/gpu/drm/display/drm_bridge_connector.c @@ -216,8 +216,19 @@ static void drm_bridge_connector_debugfs_init(struct drm_connector *connector, } } +static void drm_bridge_connector_reset(struct drm_connector *connector) +{ + struct drm_bridge_connector *bridge_connector = + to_drm_bridge_connector(connector); + + drm_atomic_helper_connector_reset(connector); + if (bridge_connector->bridge_hdmi) + __drm_atomic_helper_connector_hdmi_reset(connector, + connector->state); +} + static const struct drm_connector_funcs drm_bridge_connector_funcs = { - .reset = drm_atomic_helper_connector_reset, + .reset = drm_bridge_connector_reset, .detect = drm_bridge_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
On HDMI connectors which use drm_bridge_connector and DRM_BRIDGE_OP_HDMI IGT chokes on the max_bpc property in several kms_properties tests due to the drm_bridge_connector failing to reset HDMI-related properties. Call __drm_atomic_helper_connector_hdmi_reset() if the drm_bridge_connector has bridge_hdmi. It is impossible to call this function from HDMI bridges, none of the bridge callbacks correspond to the drm_connector_funcs::reset(). Fixes: 6b4468b0c6ba ("drm/bridge-connector: implement glue code for HDMI connector") Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/gpu/drm/display/Kconfig | 1 + drivers/gpu/drm/display/drm_bridge_connector.c | 13 ++++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-)