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authorDave Airlie <airlied@redhat.com>2010-04-09 06:27:00 +0000
committerDave Airlie <airlied@redhat.com>2010-04-12 10:01:57 +1000
commitce227c4183a2c18c9e5467b7e92d47140e763ab9 (patch)
treea3342a0db6b5560e65cf5ec4711d41e0a768c44c /drivers
parent65384a1d41c4e91f0b49d90d11b7f424d6e5c58e (diff)
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drm/radeon/kms: only change mode when coherent value changes.
On X startup we were getting a flicker where there shouldn't have been one. the X DDX calls the kernel to set the properties to the same values (yes it could be smarter), however the kernel was doing a pointless modeset then, making my nice smooth boot ugly. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 3fba50540f7..3bc20406d45 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -287,6 +287,7 @@ int radeon_connector_set_property(struct drm_connector *connector, struct drm_pr
if (property == rdev->mode_info.coherent_mode_property) {
struct radeon_encoder_atom_dig *dig;
+ bool new_coherent_mode;
/* need to find digital encoder on connector */
encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
@@ -299,8 +300,11 @@ int radeon_connector_set_property(struct drm_connector *connector, struct drm_pr
return 0;
dig = radeon_encoder->enc_priv;
- dig->coherent_mode = val ? true : false;
- radeon_property_change_mode(&radeon_encoder->base);
+ new_coherent_mode = val ? true : false;
+ if (dig->coherent_mode != new_coherent_mode) {
+ dig->coherent_mode = new_coherent_mode;
+ radeon_property_change_mode(&radeon_encoder->base);
+ }
}
if (property == rdev->mode_info.tv_std_property) {