summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/radeon/radeon_atombios.c
diff options
context:
space:
mode:
authorAlex Deucher <alexdeucher@gmail.com>2011-06-08 13:01:11 -0400
committerDave Airlie <airlied@redhat.com>2011-06-09 14:33:19 +1000
commitb20f9bef8d9ff54be266062eae365ebf4b12ca64 (patch)
treea57a2d106d7b4a80f918224bd15e276b6ddcb02b /drivers/gpu/drm/radeon/radeon_atombios.c
parent618c75e491a5a50cd3819eaf5f853fd87df3ae42 (diff)
drm/radeon/kms: check modes against max pixel clock
Filter out modes that are higher than the max pixel clock. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_atombios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_atombios.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 90dfb2b8cf0..fa62a503ae7 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1246,6 +1246,10 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
}
*dcpll = *p1pll;
+ rdev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
+ if (rdev->clock.max_pixel_clock == 0)
+ rdev->clock.max_pixel_clock = 40000;
+
return true;
}