Commit 1b24203e authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/radeon/kms/rv100: reject modes > 135 Mhz on DVI (v2)



Due to heat issues.  Fixes fdo bug 25992

v2: fix typo noticed by Maarten Maathuis
Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent b042589c
......@@ -900,10 +900,18 @@ static void radeon_dvi_force(struct drm_connector *connector)
static int radeon_dvi_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_device *dev = connector->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
/* XXX check mode bandwidth */
/* clocks over 135 MHz have heat issues with DVI on RV100 */
if (radeon_connector->use_digital &&
(rdev->family == CHIP_RV100) &&
(mode->clock > 135000))
return MODE_CLOCK_HIGH;
if (radeon_connector->use_digital && (mode->clock > 165000)) {
if ((radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
(radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
......
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