diff mbox

[v2,2/2] drm: Get atomic property value even if DRIVER_ATOMIC is not set

Message ID 1482351129-10398-2-git-send-email-dhinakaran.pandiyan@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Dhinakaran Pandiyan Dec. 21, 2016, 8:12 p.m. UTC 
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.

v2: Included header

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
---
 drivers/gpu/drm/drm_mode_object.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Alex Deucher Jan. 3, 2017, 4:06 p.m. UTC | #1 
On Wed, Dec 21, 2016 at 3:12 PM, Dhinakaran Pandiyan
<dhinakaran.pandiyan@intel.com> wrote:
> 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.
>

I think we are in the same boat.  Adding Andrey and Harry.

Alex

> v2: Included header
>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
> ---
>  drivers/gpu/drm/drm_mode_object.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c
> index 9f17085..14543ff 100644
> --- a/drivers/gpu/drm/drm_mode_object.c
> +++ b/drivers/gpu/drm/drm_mode_object.c
> @@ -23,6 +23,7 @@
>  #include <linux/export.h>
>  #include <drm/drmP.h>
>  #include <drm/drm_mode_object.h>
> +#include <drm/drm_atomic.h>
>
>  #include "drm_crtc_internal.h"
>
> @@ -273,7 +274,7 @@ 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
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff mbox

Patch

diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c
index 9f17085..14543ff 100644
--- a/drivers/gpu/drm/drm_mode_object.c
+++ b/drivers/gpu/drm/drm_mode_object.c
@@ -23,6 +23,7 @@ 
 #include <linux/export.h>
 #include <drm/drmP.h>
 #include <drm/drm_mode_object.h>
+#include <drm/drm_atomic.h>
 
 #include "drm_crtc_internal.h"
 
@@ -273,7 +274,7 @@  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);