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Commit 931c670d authored Jan 07, 2017 by Shawn Guo Committed by Daniel Vetter Jan 09, 2017

drm: add more document for drm_crtc_from_index()

Add a bit more document for function drm_crtc_from_index() to cross
link it with drm_crtc_from_index(), and explain that the function is
useful in vblank code.

While at it, add cross link comment for drm_plane_from_index() as well.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483779131-19935-1-git-send-email-shawnguo@kernel.org

parent a09759e8

drivers/gpu/drm/drm_crtc.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -52,7 +52,10 @@
		* @idx: index of registered CRTC to find for
		*
		* Given a CRTC index, return the registered CRTC from DRM device's
		* list of CRTCs with matching index.
		* list of CRTCs with matching index. This is the inverse of drm_crtc_index().
		* It's useful in the vblank callbacks (like &drm_driver.enable_vblank or
		* &drm_driver.disable_vblank), since that still deals with indices instead
		* of pointers to &struct drm_crtc."
		*/
		struct drm_crtc drm_crtc_from_index(struct drm_device dev, int idx)
		{

drivers/gpu/drm/drm_plane.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -254,7 +254,7 @@ EXPORT_SYMBOL(drm_plane_cleanup);
		* @idx: index of registered plane to find for
		*
		* Given a plane index, return the registered plane from DRM device's
		* list of planes with matching index.
		* list of planes with matching index. This is the inverse of drm_plane_index().
		*/
		struct drm_plane *
		drm_plane_from_index(struct drm_device *dev, int idx)