diff options
| author | Dave Airlie <airlied@redhat.com> | 2016-04-27 11:10:09 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-05-05 12:51:53 +1000 |
| commit | b164d31f50b2923a7a92c2a40cb46973a6ba8c36 (patch) | |
| tree | b4bd813e86002fc6aabfb11ebe9c13d01958df85 /include | |
| parent | e76d399f21f3fd20c470233af73cab2e5307d566 (diff) | |
drm/modes: add connector reference counting. (v2)
This uses the previous changes to add reference counts
to drm connector objects.
v2: move fbdev changes to their own patch.
add some kerneldoc
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drm_crtc.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 0cc1eb7b4fd2..4acdaf5e283d 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -2571,7 +2571,15 @@ static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev, return mo ? obj_to_encoder(mo) : NULL; } -static inline struct drm_connector *drm_connector_find(struct drm_device *dev, +/** + * drm_connector_lookup - lookup connector object + * @dev: DRM device + * @id: connector object id + * + * This function looks up the connector object specified by id + * add takes a reference to it. + */ +static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev, uint32_t id) { struct drm_mode_object *mo; @@ -2639,6 +2647,28 @@ static inline uint32_t drm_framebuffer_read_refcount(struct drm_framebuffer *fb) return atomic_read(&fb->base.refcount.refcount); } +/** + * drm_connector_reference - incr the connector refcnt + * @connector: connector + * + * This function increments the connector's refcount. + */ +static inline void drm_connector_reference(struct drm_connector *connector) +{ + drm_mode_object_reference(&connector->base); +} + +/** + * drm_connector_unreference - unref a connector + * @connector: connector to unref + * + * This function decrements the connector's refcount and frees it if it drops to zero. + */ +static inline void drm_connector_unreference(struct drm_connector *connector) +{ + drm_mode_object_unreference(&connector->base); +} + /* Plane list iterator for legacy (overlay only) planes. */ #define drm_for_each_legacy_plane(plane, dev) \ list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \ |