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authorAlex Deucher <alexdeucher@gmail.com>2010-01-11 15:02:31 -0500
committerDave Airlie <airlied@redhat.com>2010-01-13 13:25:10 +1000
commit1b24203e51072b6e76aff8c74bdd67eb3b34a724 (patch)
treef4700c8190369d3e331edd0f7d89f8e523a7d416
parentb042589ca038e647fa1e2bb4e7ac3963688479b8 (diff)
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: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 9da10dd5df8..55266416fa4 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -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) ||