From: Alex Deucher <alexdeucher@gmail.com>
Date: Wed, 2 Mar 2011 15:21:05 +0000 (-0500)
Subject: drm/radeon/kms: allow max clock of 340 Mhz on hdmi 1.3+
X-Git-Tag: v2.6.39-rc2~3^2~32
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e1e84017f95504348308085ae7cd0bfe268caf10;p=platform%2Fkernel%2Flinux-stable.git

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

hdmi 1.3 raises the max clock from 165 Mhz to 340 Mhz.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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;