i915 does not set DRIVER_ATOMIC by default yet but uses atomic_check and
atomic_commit. drm_object_property_get_value() does not read the correct
value of atomic properties if DRIVER_ATOMIC is not set. Checking whether
the driver uses atomic modeset is a better check instead as the property
values are tracked in the state structures.
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
---
drivers/gpu/drm/drm_mode_object.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_mode_object.c
b/drivers/gpu/drm/drm_mode_object.c
index 9f17085..292d339 100644
--- a/drivers/gpu/drm/drm_mode_object.c
+++ b/drivers/gpu/drm/drm_mode_object.c
@@ -273,7 +273,7 @@ int drm_object_property_get_value(struct drm_mode_object
*obj,
* their value in obj->properties->values[].. mostly to avoid
* having to deal w/ EDID and similar props in atomic paths:
*/
- if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) &&
+ if (drm_drv_uses_atomic_modeset(property->dev) &&
!(property->flags & DRM_MODE_PROP_IMMUTABLE))
return drm_atomic_get_property(obj, property, val);
--
2.7.4
