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drm/radeon/kms: check modes against max pixel clock

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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>
This commit is contained in:
Alex Deucher
2011-06-08 13:01:11 -04:00
committed by Dave Airlie
parent 618c75e491
commit b20f9bef8d
5 changed files with 27 additions and 4 deletions
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5
drivers/gpu/drm/radeon/radeon_combios.c
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@@ -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;