diff options
Diffstat (limited to 'drivers/gpu/drm/drm_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/drm_encoder.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c index 5c067719164d..129450713bb7 100644 --- a/drivers/gpu/drm/drm_encoder.c +++ b/drivers/gpu/drm/drm_encoder.c @@ -30,8 +30,8 @@ * DOC: overview * * Encoders represent the connecting element between the CRTC (as the overall - * pixel pipeline, represented by struct &drm_crtc) and the connectors (as the - * generic sink entity, represented by struct &drm_connector). An encoder takes + * pixel pipeline, represented by &struct drm_crtc) and the connectors (as the + * generic sink entity, represented by &struct drm_connector). An encoder takes * pixel data from a CRTC and converts it to a format suitable for any attached * connector. Encoders are objects exposed to userspace, originally to allow * userspace to infer cloning and connector/CRTC restrictions. Unfortunately @@ -98,7 +98,7 @@ void drm_encoder_unregister_all(struct drm_device *dev) * * Initialises a preallocated encoder. Encoder should be subclassed as part of * driver encoder objects. At driver unload time drm_encoder_cleanup() should be - * called from the driver's destroy hook in &drm_encoder_funcs. + * called from the driver's &drm_encoder_funcs.destroy hook. * * Returns: * Zero on success, error code on failure. @@ -110,11 +110,9 @@ int drm_encoder_init(struct drm_device *dev, { int ret; - drm_modeset_lock_all(dev); - ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); if (ret) - goto out_unlock; + return ret; encoder->dev = dev; encoder->encoder_type = encoder_type; @@ -142,9 +140,6 @@ out_put: if (ret) drm_mode_object_unregister(dev, &encoder->base); -out_unlock: - drm_modeset_unlock_all(dev); - return ret; } EXPORT_SYMBOL(drm_encoder_init); @@ -164,12 +159,21 @@ void drm_encoder_cleanup(struct drm_encoder *encoder) * the indices on the drm_encoder after us in the encoder_list. */ - drm_modeset_lock_all(dev); + if (encoder->bridge) { + struct drm_bridge *bridge = encoder->bridge; + struct drm_bridge *next; + + while (bridge) { + next = bridge->next; + drm_bridge_detach(bridge); + bridge = next; + } + } + drm_mode_object_unregister(dev, &encoder->base); kfree(encoder->name); list_del(&encoder->head); dev->mode_config.num_encoder--; - drm_modeset_unlock_all(dev); memset(encoder, 0, sizeof(*encoder)); } @@ -180,10 +184,12 @@ static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) struct drm_connector *connector; struct drm_device *dev = encoder->dev; bool uses_atomic = false; + struct drm_connector_list_iter conn_iter; /* For atomic drivers only state objects are synchronously updated and * protected by modeset locks, so check those first. */ - drm_for_each_connector(connector, dev) { + drm_connector_list_iter_get(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { if (!connector->state) continue; @@ -192,8 +198,10 @@ static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) if (connector->state->best_encoder != encoder) continue; + drm_connector_list_iter_put(&conn_iter); return connector->state->crtc; } + drm_connector_list_iter_put(&conn_iter); /* Don't return stale data (e.g. pending async disable). */ if (uses_atomic) |