diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_connector.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_connector.c | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_connector.c b/drivers/gpu/drm/i915/display/intel_connector.c index c65887870ddc..e42357bd9e80 100644 --- a/drivers/gpu/drm/i915/display/intel_connector.c +++ b/drivers/gpu/drm/i915/display/intel_connector.c @@ -28,6 +28,7 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_edid.h> +#include <drm/drm_probe_helper.h> #include "i915_drv.h" #include "intel_backlight.h" @@ -37,6 +38,44 @@ #include "intel_hdcp.h" #include "intel_panel.h" +static void intel_connector_modeset_retry_work_fn(struct work_struct *work) +{ + struct intel_connector *connector = container_of(work, typeof(*connector), + modeset_retry_work); + struct intel_display *display = to_intel_display(connector); + + drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s]\n", connector->base.base.id, + connector->base.name); + + /* Grab the locks before changing connector property*/ + mutex_lock(&display->drm->mode_config.mutex); + /* Set connector link status to BAD and send a Uevent to notify + * userspace to do a modeset. + */ + drm_connector_set_link_status_property(&connector->base, + DRM_MODE_LINK_STATUS_BAD); + mutex_unlock(&display->drm->mode_config.mutex); + /* Send Hotplug uevent so userspace can reprobe */ + drm_kms_helper_connector_hotplug_event(&connector->base); + + drm_connector_put(&connector->base); +} + +void intel_connector_queue_modeset_retry_work(struct intel_connector *connector) +{ + struct drm_i915_private *i915 = to_i915(connector->base.dev); + + drm_connector_get(&connector->base); + if (!queue_work(i915->unordered_wq, &connector->modeset_retry_work)) + drm_connector_put(&connector->base); +} + +void intel_connector_cancel_modeset_retry_work(struct intel_connector *connector) +{ + if (cancel_work_sync(&connector->modeset_retry_work)) + drm_connector_put(&connector->base); +} + int intel_connector_init(struct intel_connector *connector) { struct intel_digital_connector_state *conn_state; @@ -56,6 +95,9 @@ int intel_connector_init(struct intel_connector *connector) intel_panel_init_alloc(connector); + INIT_WORK(&connector->modeset_retry_work, + intel_connector_modeset_retry_work_fn); + return 0; } @@ -103,8 +145,8 @@ void intel_connector_destroy(struct drm_connector *connector) drm_connector_cleanup(connector); - if (intel_connector->port) - drm_dp_mst_put_port_malloc(intel_connector->port); + if (intel_connector->mst.port) + drm_dp_mst_put_port_malloc(intel_connector->mst.port); kfree(connector); } |