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drm/atomic: Add drm_atomic_crtc_state_for_each_plane_state

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... and use it in msm&vc4. Again just want to encapsulate
drm_atomic_state internals a bit.

The const threading is a bit awkward in vc4 since C sucks, but I still
think it's worth to enforce this. Eventually I want to make all the
obj->state pointers const too, but that's a lot more work ...

v2: Provide safe macro to wrap up the unsafe helper better, suggested
by Maarten.

v3: Fixup subject (Maarten) and spelling fixes (Eric Engestrom).

Cc: Eric Anholt <eric@anholt.net>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464877304-4213-1-git-send-email-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter
2016-06-02 16:21:44 +02:00
parent 2e7a5701c9
commit 2f196b7c4b
6 changed files with 66 additions and 24 deletions
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2
drivers/gpu/drm/vc4/vc4_drv.h
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@@ -469,7 +469,7 @@ int vc4_kms_load(struct drm_device *dev);
struct drm_plane *vc4_plane_init(struct drm_device *dev,
enum drm_plane_type type);
u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist);
u32 vc4_plane_dlist_size(struct drm_plane_state *state);
u32 vc4_plane_dlist_size(const struct drm_plane_state *state);
void vc4_plane_async_set_fb(struct drm_plane *plane,
struct drm_framebuffer *fb);