[PATCH 3/3] drm/atomic: add all affected planes in drm_atomic_helper_check_modeset

[Maarten Lankhorst]

Drivers may need to recalculate plane state when a modeset occurs,
not reliably adding them might cause hard to debug bugs.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/drm_atomic_helper.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic_helper.c 
b/drivers/gpu/drm/drm_atomic_helper.c
index 2da8a16bb39e..4f5a427e9405 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -429,6 +429,10 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
                if (ret != 0)
                        return ret;

+               ret = drm_atomic_add_affected_planes(state, crtc);
+               if (ret != 0)
+                       return ret;
+
                num_connectors = drm_atomic_connectors_for_crtc(state,
                                                                crtc);

-- 
2.1.0