drm/radeon/kms: allow max clock of 340 Mhz on hdmi 1.3+

Commit Message

Alex Deucher March 2, 2011, 3:21 p.m. UTC

None

Patch

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 22b7e3d..3f3c9aa 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -972,7 +972,16 @@  static int radeon_dvi_mode_valid(struct drm_connector *connector,
 		    (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
 		    (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
 			return MODE_OK;
-		else
+		else if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) {
+			if (ASIC_IS_DCE3(rdev)) {
+				/* HDMI 1.3+ supports max clock of 340 Mhz */
+				if (mode->clock > 340000)
+					return MODE_CLOCK_HIGH;
+				else
+					return MODE_OK;
+			} else
+				return MODE_CLOCK_HIGH;
+		} else
 			return MODE_CLOCK_HIGH;
 	}
 	return MODE_OK;