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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_combios.c
parent618c75e491a5a50cd3819eaf5f853fd87df3ae42 (diff)
downloadop-kernel-dev-b20f9bef8d9ff54be266062eae365ebf4b12ca64.zip
op-kernel-dev-b20f9bef8d9ff54be266062eae365ebf4b12ca64.tar.gz
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_combios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 5b991f7..d1b95b7 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -866,6 +866,11 @@ bool radeon_combios_get_clock_info(struct drm_device *dev)
rdev->clock.default_sclk = sclk;
rdev->clock.default_mclk = mclk;
+ if (RBIOS32(pll_info + 0x16))
+ rdev->clock.max_pixel_clock = RBIOS32(pll_info + 0x16);
+ else
+ rdev->clock.max_pixel_clock = 35000; /* might need something asic specific */
+
return true;
}
return false;
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