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drm/radeon/kms: only change mode when coherent value changes.

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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>
This commit is contained in:
Dave Airlie
2010-04-09 06:27:00 +00:00
parent 65384a1d41
commit ce227c4183
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/radeon/radeon_connectors.c
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@@ -287,6 +287,7 @@ int radeon_connector_set_property(struct drm_connector *connector, struct drm_pr
if (property == rdev->mode_info.coherent_mode_property) { if (property == rdev->mode_info.coherent_mode_property) {
struct radeon_encoder_atom_dig *dig; struct radeon_encoder_atom_dig *dig;
bool new_coherent_mode;
/* need to find digital encoder on connector */ /* need to find digital encoder on connector */
encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS); 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; return 0;
dig = radeon_encoder->enc_priv; dig = radeon_encoder->enc_priv;
dig->coherent_mode = val ? true : false; new_coherent_mode = val ? true : false;
radeon_property_change_mode(&radeon_encoder->base); 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) { if (property == rdev->mode_info.tv_std_property) {