From 3e2f29e4137c78a3bd7e1b85cf287ff375f6367e Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@gmail.com>
Date: Wed, 19 Nov 2014 12:29:33 -0500
Subject: drm/msm: atomic fixes

Fixes for a couple little issues found in testing.

Signed-off-by: Rob Clark <robdclark@gmail.com>

diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c
index 8cf3361..f0de412 100644
--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -117,7 +117,7 @@ int msm_atomic_commit(struct drm_device *dev,
 		if (!plane)
 			continue;
 
-		if (plane->state->fb != new_state->fb)
+		if ((plane->state->fb != new_state->fb) && new_state->fb)
 			add_fb(c, new_state->fb);
 	}
 
diff --git a/drivers/gpu/drm/msm/msm_fb.c b/drivers/gpu/drm/msm/msm_fb.c
index f4e42d5..84dec16 100644
--- a/drivers/gpu/drm/msm/msm_fb.c
+++ b/drivers/gpu/drm/msm/msm_fb.c
@@ -120,6 +120,8 @@ void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id)
 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane)
 {
 	struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
+	if (!msm_fb->planes[plane])
+		return 0;
 	return msm_gem_iova(msm_fb->planes[plane], id);
 }
 
diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h
index 15a0fec9..1e9d8c2 100644
--- a/drivers/gpu/drm/msm/msm_kms.h
+++ b/drivers/gpu/drm/msm/msm_kms.h
@@ -68,6 +68,11 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev);
 /* TODO move these helper iterator macro somewhere common: */
 #define for_each_plane_on_crtc(_crtc, _plane) \
 	list_for_each_entry((_plane), &(_crtc)->dev->mode_config.plane_list, head) \
-		if ((_plane)->crtc == (_crtc))
+		if ((_plane)->state->crtc == (_crtc))
+
+#define for_each_pending_plane_on_crtc(_state, _crtc, _plane) \
+	list_for_each_entry((_plane), &(_crtc)->dev->mode_config.plane_list, head) \
+		if (({struct drm_plane_state *_ps = (_state)->plane_states[drm_plane_index(_plane)]; \
+			_ps && _ps->crtc == (_crtc);}))
 
 #endif /* __MSM_KMS_H__ */
-- 
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