From: Thierry Reding Date: Tue, 25 Nov 2014 11:09:44 +0000 (+0100) Subject: drm/plane: Pass old state to ->atomic_update() X-Git-Tag: v3.19-rc1~73^2~4^2~20 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f1c37e1adc6eca1fb492c74d466141d9b01e0428;p=platform%2Fkernel%2Flinux-exynos.git drm/plane: Pass old state to ->atomic_update() In most situations it will be useful to have the old state passed to the ->atomic_update() callback. For example if a plane is being disabled the new state's .crtc field will be NULL, but some drivers may rely on this field to program the CRTCs registers. v2: rename variable to old_plane_state and remove redundant comment as suggested by Daniel Vetter, remove an Exynos hunk that doesn't apply to drm-next and add a hunk for pending MSM mdp5 changes Reviewed-by: Daniel Vetter Signed-off-by: Thierry Reding Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index d981d07..2fa0840 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1046,6 +1046,7 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev, for (i = 0; i < nplanes; i++) { struct drm_plane_helper_funcs *funcs; struct drm_plane *plane = old_state->planes[i]; + struct drm_plane_state *old_plane_state; if (!plane) continue; @@ -1055,7 +1056,9 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev, if (!funcs || !funcs->atomic_update) continue; - funcs->atomic_update(plane); + old_plane_state = old_state->plane_states[i]; + + funcs->atomic_update(plane, old_plane_state); } for (i = 0; i < ncrtcs; i++) { diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c index 93c6533..18a1ac6 100644 --- a/drivers/gpu/drm/drm_plane_helper.c +++ b/drivers/gpu/drm/drm_plane_helper.c @@ -443,7 +443,7 @@ int drm_plane_helper_commit(struct drm_plane *plane, crtc_funcs[i]->atomic_begin(crtc[i]); } - plane_funcs->atomic_update(plane); + plane_funcs->atomic_update(plane, plane_state); for (i = 0; i < 2; i++) { if (crtc_funcs[i] && crtc_funcs[i]->atomic_flush) diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c index 76d0a40..1e5ebe8 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c @@ -107,7 +107,8 @@ static int mdp4_plane_atomic_check(struct drm_plane *plane, return 0; } -static void mdp4_plane_atomic_update(struct drm_plane *plane) +static void mdp4_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) { struct drm_plane_state *state = plane->state; int ret; diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c index 533df7c..26e5fde 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c @@ -213,7 +213,8 @@ static int mdp5_plane_atomic_check(struct drm_plane *plane, return 0; } -static void mdp5_plane_atomic_update(struct drm_plane *plane) +static void mdp5_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) { struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane); struct drm_plane_state *state = plane->state; diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h index c48f14d..fcfa969 100644 --- a/include/drm/drm_plane_helper.h +++ b/include/drm/drm_plane_helper.h @@ -60,7 +60,8 @@ struct drm_plane_helper_funcs { int (*atomic_check)(struct drm_plane *plane, struct drm_plane_state *state); - void (*atomic_update)(struct drm_plane *plane); + void (*atomic_update)(struct drm_plane *plane, + struct drm_plane_state *old_state); }; static inline void drm_plane_helper_add(struct drm_plane *plane,