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drm/atomic: pass old crtc state to atomic_begin/flush.

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In intel it's useful to keep track of some state changes with old
crtc state vs new state, for example to disable initial planes or
when a modeset's prevented during fastboot.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
[danvet: squash in fixup for exynos provided by Maarten.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Maarten Lankhorst
2015-07-21 13:28:58 +02:00
committed by Daniel Vetter
parent fc596660dd
commit 613d2b2721
11 changed files with 44 additions and 26 deletions
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6
include/drm/drm_crtc_helper.h
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@@ -108,8 +108,10 @@ struct drm_crtc_helper_funcs {
/* atomic helpers */
int (*atomic_check)(struct drm_crtc *crtc,
struct drm_crtc_state *state);
void (*atomic_begin)(struct drm_crtc *crtc);
void (*atomic_flush)(struct drm_crtc *crtc);
void (*atomic_begin)(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state);
void (*atomic_flush)(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state);
};
/**