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Commit ce227c41 authored by Dave Airlie's avatar Dave Airlie
Browse files

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: default avatarDave Airlie <airlied@redhat.com>
parent 65384a1d

drivers/gpu/drm/radeon/radeon_connectors.c

+6 −2
Original line number Original line Diff line number Diff line
@@ -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);
@@ -299,9 +300,12 @@ 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;

		if (dig->coherent_mode != new_coherent_mode) {

			dig->coherent_mode = new_coherent_mode;

			radeon_property_change_mode(&radeon_encoder->base);

			radeon_property_change_mode(&radeon_encoder->base);

		}

		}

	}





	if (property == rdev->mode_info.tv_std_property) {

	if (property == rdev->mode_info.tv_std_property) {

		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TVDAC);

		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TVDAC);