diff options
authorAndrzej Pietrasiewicz <andrzej.p@samsung.com>2017-02-01 10:35:08 +0100
committerEric Anholt <eric@anholt.net>2017-02-08 14:19:23 -0800
commit49d29a077af8d2ee3b291ccd8d053541bebe09d7 (patch)
parentd5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c (diff)
drm: vc4: adapt to new behaviour of drm_crtc.cdrm-misc-fixes-2017-02-09
When drm_crtc_init_with_planes() was orignally added (in drm_crtc.c, e13161af80c185ecd8dc4641d0f5df58f9e3e0af drm: Add drm_crtc_init_with_planes() (v2)), it only checked for "primary" being non-null. If that was the case, it modified primary->possible_crtcs. Then, when support for cursor planes was added (fc1d3e44ef7c1db93384150fdbf8948dcf949f15 drm: Allow drivers to register cursor planes with crtc), the same behaviour was implemented for cursor planes. vc4_plane_init() since its inception has passed 0xff as "possible_crtcs" parameter to drm_universal_plane_init(). With a change in drm_crtc.c (7abc7d47510c75dd984380ebf819616e574c9604 drm: don't override possible_crtcs for primary/cursor planes) passing 0xff results in primary's possible_crtcs set to 0xff (cursor was updated manually by vc4_crtc.c). Consequently, it would be allowed to use the primary plane from CRTC 1 (for example) on CRTC 0, which would result in the overlay and cursors being buried. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Reviewed-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/1485941708-27892-1-git-send-email-andrzej.p@samsung.com Fixes: 7abc7d47510c ("drm: don't override possible_crtcs for primary/cursor planes")
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 881bf489478b..686cdd3c86f2 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -858,7 +858,7 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,
plane = &vc4_plane->base;
- ret = drm_universal_plane_init(dev, plane, 0xff,
+ ret = drm_universal_plane_init(dev, plane, 0,
formats, num_formats,
type, NULL);

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