diff options
Diffstat (limited to 'drivers/gpu/drm/drm_bridge.c')
| -rw-r--r-- | drivers/gpu/drm/drm_bridge.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 2555430..0ee052b 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -23,10 +23,9 @@ #include <linux/err.h> #include <linux/module.h> +#include <linux/mutex.h> -#include <drm/drm_crtc.h> - -#include "drm/drmP.h" +#include <drm/drm_bridge.h> /** * DOC: overview @@ -98,11 +97,11 @@ EXPORT_SYMBOL(drm_bridge_remove); * @dev: DRM device * @bridge: bridge control structure * - * called by a kms driver to link one of our encoder/bridge to the given + * Called by a kms driver to link one of our encoder/bridge to the given * bridge. * * Note that setting up links between the bridge and our encoder/bridge - * objects needs to be handled by the kms driver itself + * objects needs to be handled by the kms driver itself. * * RETURNS: * Zero on success, error code on failure @@ -125,6 +124,31 @@ int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge) EXPORT_SYMBOL(drm_bridge_attach); /** + * drm_bridge_detach - deassociate given bridge from its DRM device + * + * @bridge: bridge control structure + * + * Called by a kms driver to unlink the given bridge from its DRM device. + * + * Note that tearing down links between the bridge and our encoder/bridge + * objects needs to be handled by the kms driver itself. + */ +void drm_bridge_detach(struct drm_bridge *bridge) +{ + if (WARN_ON(!bridge)) + return; + + if (WARN_ON(!bridge->dev)) + return; + + if (bridge->funcs->detach) + bridge->funcs->detach(bridge); + + bridge->dev = NULL; +} +EXPORT_SYMBOL(drm_bridge_detach); + +/** * DOC: bridge callbacks * * The &drm_bridge_funcs ops are populated by the bridge driver. The DRM |
