]> git.baikalelectronics.ru Git - kernel.git/commit
drm: add of_graph endpoint helper to find possible CRTCs
authorRussell King <rmk+kernel@arm.linux.org.uk>
Sun, 15 Jun 2014 10:07:12 +0000 (11:07 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Fri, 11 Jul 2014 14:38:28 +0000 (15:38 +0100)
commitad47846a762714db05025f1cd3a59844ec82d243
tree5bbdc53757bc3a2e596160ff938c5be7a2855c58
parentec0a5ff0a2aa0111b438ab1c4b32d94c768c82d6
drm: add of_graph endpoint helper to find possible CRTCs

Add a helper to allow encoders to find their possible CRTCs from the
OF graph without having to re-implement this functionality.  We add a
device_node to drm_crtc which corresponds with the port node in the
DT description of the CRTC device.

We can then scan the DRM device list for CRTCs to find their index,
matching the appropriate CRTC using the port device_node, thus building
up the possible CRTC mask.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drivers/gpu/drm/Makefile
drivers/gpu/drm/drm_of.c [new file with mode: 0644]
include/drm/drm_crtc.h
include/drm/drm_of.h [new file with mode: 0644]