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

drivers/gpu/drm/radeon/radeon_connectors.c

+8 −0
Original line number Diff line number Diff line
@@ -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) ||