The DisplayPort standard defines a special kind of HPD events called IRQ_HPD. These events are used to notify DP Source about the events on the Sink side.
Extend drm_connector_funcs::oob_hotplug_event() to pass the notifications about the IRQ_HPD events down to the individual drivers, letting them handle those as required. Signed-off-by: Dmitry Baryshkov <[email protected]> --- drivers/gpu/drm/display/drm_bridge_connector.c | 17 ++++++++++------- drivers/gpu/drm/drm_connector.c | 2 +- drivers/gpu/drm/i915/display/intel_dp.c | 3 ++- include/drm/drm_connector.h | 3 ++- 4 files changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c index 649969fca141..046efd913064 100644 --- a/drivers/gpu/drm/display/drm_bridge_connector.c +++ b/drivers/gpu/drm/display/drm_bridge_connector.c @@ -141,7 +141,8 @@ struct drm_bridge_connector { */ static void drm_bridge_connector_hpd_notify(struct drm_connector *connector, - enum drm_connector_status status) + enum drm_connector_status status, + enum drm_connector_status_extra extra_status) { struct drm_bridge_connector *bridge_connector = to_drm_bridge_connector(connector); @@ -154,7 +155,8 @@ static void drm_bridge_connector_hpd_notify(struct drm_connector *connector, } static void drm_bridge_connector_handle_hpd(struct drm_bridge_connector *drm_bridge_connector, - enum drm_connector_status status) + enum drm_connector_status status, + enum drm_connector_status_extra extra_status) { struct drm_connector *connector = &drm_bridge_connector->base; struct drm_device *dev = connector->dev; @@ -163,7 +165,7 @@ static void drm_bridge_connector_handle_hpd(struct drm_bridge_connector *drm_bri connector->status = status; mutex_unlock(&dev->mode_config.mutex); - drm_bridge_connector_hpd_notify(connector, status); + drm_bridge_connector_hpd_notify(connector, status, extra_status); drm_kms_helper_connector_hotplug_event(connector); } @@ -171,16 +173,17 @@ static void drm_bridge_connector_handle_hpd(struct drm_bridge_connector *drm_bri static void drm_bridge_connector_hpd_cb(void *cb_data, enum drm_connector_status status) { - drm_bridge_connector_handle_hpd(cb_data, status); + drm_bridge_connector_handle_hpd(cb_data, status, DRM_CONNECTOR_NO_EXTRA_STATUS); } static void drm_bridge_connector_oob_hotplug_event(struct drm_connector *connector, - enum drm_connector_status status) + enum drm_connector_status status, + enum drm_connector_status_extra extra_status) { struct drm_bridge_connector *bridge_connector = to_drm_bridge_connector(connector); - drm_bridge_connector_handle_hpd(bridge_connector, status); + drm_bridge_connector_handle_hpd(bridge_connector, status, extra_status); } static void drm_bridge_connector_enable_hpd(struct drm_connector *connector) @@ -223,7 +226,7 @@ drm_bridge_connector_detect(struct drm_connector *connector, bool force) if (hdmi) drm_atomic_helper_connector_hdmi_hotplug(connector, status); - drm_bridge_connector_hpd_notify(connector, status); + drm_bridge_connector_hpd_notify(connector, status, DRM_CONNECTOR_NO_EXTRA_STATUS); } else { switch (connector->connector_type) { case DRM_MODE_CONNECTOR_DPI: diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index bb128dd0263a..d99019fdea9c 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -3528,7 +3528,7 @@ void drm_connector_dp_oob_status(struct fwnode_handle *connector_fwnode, return; if (connector->funcs->oob_hotplug_event) - connector->funcs->oob_hotplug_event(connector, status); + connector->funcs->oob_hotplug_event(connector, status, extra_status); drm_connector_put(connector); } diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 85d3aa3b9894..31acb3129723 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6990,7 +6990,8 @@ static int intel_dp_connector_atomic_check(struct drm_connector *_connector, } static void intel_dp_oob_hotplug_event(struct drm_connector *_connector, - enum drm_connector_status hpd_state) + enum drm_connector_status hpd_state, + enum drm_connector_status_extra extra_status) { struct intel_connector *connector = to_intel_connector(_connector); struct intel_display *display = to_intel_display(connector); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 105da7c94910..5784bb9c4021 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1720,7 +1720,8 @@ struct drm_connector_funcs { * has been received from a source outside the display driver / device. */ void (*oob_hotplug_event)(struct drm_connector *connector, - enum drm_connector_status status); + enum drm_connector_status status, + enum drm_connector_status_extra extra_status); /** * @debugfs_init: -- 2.47.3
