Replace the .detect() connector_funcs callback with the atomic-aware .detect_ctx() connector_helper_funcs hook.
This propagates the modeset acquire context through drm_atomic_helper_connector_hdmi_hotplug_ctx() to the HDMI connector framework, enabling SCDC state recovery via CRTC reset when the sink reconnects during an active display pipeline. Tested-by: Diederik de Haas <[email protected]> Tested-by: Maud Spierings <[email protected]> Reviewed-by: Dmitry Baryshkov <[email protected]> Signed-off-by: Cristian Ciocaltea <[email protected]> --- drivers/gpu/drm/display/drm_bridge_connector.c | 74 ++++++++++++++------------ 1 file changed, 40 insertions(+), 34 deletions(-) diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c index b69785eb49e2..47bb0dcf509f 100644 --- a/drivers/gpu/drm/display/drm_bridge_connector.c +++ b/drivers/gpu/drm/display/drm_bridge_connector.c @@ -208,39 +208,6 @@ static void drm_bridge_connector_disable_hpd(struct drm_connector *connector) * Bridge Connector Functions */ -static enum drm_connector_status -drm_bridge_connector_detect(struct drm_connector *connector, bool force) -{ - struct drm_bridge_connector *bridge_connector = - to_drm_bridge_connector(connector); - struct drm_bridge *detect = bridge_connector->bridge_detect; - struct drm_bridge *hdmi = bridge_connector->bridge_hdmi; - enum drm_connector_status status; - - if (detect) { - status = detect->funcs->detect(detect, connector); - - if (hdmi) - drm_atomic_helper_connector_hdmi_hotplug(connector, status); - - drm_bridge_connector_hpd_notify(connector, status); - } else { - switch (connector->connector_type) { - case DRM_MODE_CONNECTOR_DPI: - case DRM_MODE_CONNECTOR_LVDS: - case DRM_MODE_CONNECTOR_DSI: - case DRM_MODE_CONNECTOR_eDP: - status = connector_status_connected; - break; - default: - status = connector_status_unknown; - break; - } - } - - return status; -} - static void drm_bridge_connector_force(struct drm_connector *connector) { struct drm_bridge_connector *bridge_connector = @@ -278,7 +245,6 @@ static void drm_bridge_connector_reset(struct drm_connector *connector) static const struct drm_connector_funcs drm_bridge_connector_funcs = { .reset = drm_bridge_connector_reset, - .detect = drm_bridge_connector_detect, .force = drm_bridge_connector_force, .fill_modes = drm_helper_probe_single_connector_modes, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, @@ -291,6 +257,45 @@ static const struct drm_connector_funcs drm_bridge_connector_funcs = { * Bridge Connector Helper Functions */ +static int drm_bridge_connector_detect_ctx(struct drm_connector *connector, + struct drm_modeset_acquire_ctx *ctx, + bool force) +{ + struct drm_bridge_connector *bridge_connector = + to_drm_bridge_connector(connector); + struct drm_bridge *detect = bridge_connector->bridge_detect; + struct drm_bridge *hdmi = bridge_connector->bridge_hdmi; + enum drm_connector_status status; + int ret; + + if (detect) { + status = detect->funcs->detect(detect, connector); + + if (hdmi) { + ret = drm_atomic_helper_connector_hdmi_hotplug_ctx(connector, + status, ctx); + if (ret == -EDEADLOCK) + return ret; + } + + drm_bridge_connector_hpd_notify(connector, status); + } else { + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_DPI: + case DRM_MODE_CONNECTOR_LVDS: + case DRM_MODE_CONNECTOR_DSI: + case DRM_MODE_CONNECTOR_eDP: + status = connector_status_connected; + break; + default: + status = connector_status_unknown; + break; + } + } + + return status; +} + static int drm_bridge_connector_get_modes_edid(struct drm_connector *connector, struct drm_bridge *bridge) { @@ -382,6 +387,7 @@ static int drm_bridge_connector_atomic_check(struct drm_connector *connector, static const struct drm_connector_helper_funcs drm_bridge_connector_helper_funcs = { .get_modes = drm_bridge_connector_get_modes, + .detect_ctx = drm_bridge_connector_detect_ctx, .mode_valid = drm_bridge_connector_mode_valid, .enable_hpd = drm_bridge_connector_enable_hpd, .disable_hpd = drm_bridge_connector_disable_hpd, -- 2.53.0
