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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2019-06-11 16:51:43 -0400
committerSean Paul <seanpaul@chromium.org>2019-06-13 13:00:29 -0400
commit1b27fbdde1df172dba604855c45078d741f8c858 (patch)
tree95c0b071eda0eb46e4593c1f5c1e935e60ca7f9c /include/drm/drm_atomic.h
parent43c76d72ea853ccaeb22a497c13d3cd946869ec6 (diff)
downloadlinux-1b27fbdde1df172dba604855c45078d741f8c858.tar.bz2
drm: Add drm_atomic_get_(old|new)_connector_for_encoder() helpers
Add functions to the atomic core to retrieve the old and new connectors associated with an encoder in a drm_atomic_state. This is useful for encoders and bridges that need to access the connector, for instance for the drm_display_info. The CRTC associated with the encoder can also be retrieved through the connector state, and from it, the old and new CRTC states. Changed in v4: - Added to the set Changed in v5: - Fix up docbook (Daniel & Laurent) Changed in v6: - Updated commit subject (Sam) Link to v4: https://patchwork.freedesktop.org/patch/msgid/20190508160920.144739-3-sean@poorly.run Link to v5: https://patchwork.freedesktop.org/patch/msgid/20190611160844.257498-3-sean@poorly.run Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sam Ravnborg <sam@ravnborg.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [seanpaul removed WARNs from helpers and added docs to explain why returning NULL might be valid] Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190611205147.181298-1-sean@poorly.run
Diffstat (limited to 'include/drm/drm_atomic.h')
-rw-r--r--include/drm/drm_atomic.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index e937ff2beb04..f12215647801 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -459,6 +459,13 @@ struct drm_private_state *
drm_atomic_get_new_private_obj_state(struct drm_atomic_state *state,
struct drm_private_obj *obj);
+struct drm_connector *
+drm_atomic_get_old_connector_for_encoder(struct drm_atomic_state *state,
+ struct drm_encoder *encoder);
+struct drm_connector *
+drm_atomic_get_new_connector_for_encoder(struct drm_atomic_state *state,
+ struct drm_encoder *encoder);
+
/**
* drm_atomic_get_existing_crtc_state - get crtc state, if it exists
* @state: global atomic state object