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

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>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 644b4b76e071..1610757230a5 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -80,7 +80,8 @@ exynos_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
 		exynos_crtc->ops->commit(exynos_crtc);
 }
 
-static void exynos_crtc_atomic_begin(struct drm_crtc *crtc)
+static void exynos_crtc_atomic_begin(struct drm_crtc *crtc,
+				     struct drm_crtc_state *old_crtc_state)
 {
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 
@@ -90,7 +91,8 @@ static void exynos_crtc_atomic_begin(struct drm_crtc *crtc)
 	}
 }
 
-static void exynos_crtc_atomic_flush(struct drm_crtc *crtc)
+static void exynos_crtc_atomic_flush(struct drm_crtc *crtc,
+				     struct drm_crtc_state *old_crtc_state)
 {
 }