[051/244] drm/radeon/kms: set a default max_pixel_clock

From: Greg KH
Date: Wed Sep 28 2011 - 18:39:29 EST


3.0-stable review patch. If anyone has any objections, please let us know.

------------------

From: Dave Airlie <airlied@xxxxxxxxxx>

commit 9adceaa5b3d2480e2252c4a7f9c4bd7d66b8c4a2 upstream.

On some Power rv100 cards, we have no ATY OF table, but we have
no combios table either, and hence we refuse all modes on VGA-0
since we end up with a 0 max pixel clock.

Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Reviewed-by: Alex Deucher <alexdeucher@xxxxxxxxx>
Reviewed-by: Jerome Glisse <jglisse@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/gpu/drm/radeon/radeon_clocks.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/radeon/radeon_clocks.c
+++ b/drivers/gpu/drm/radeon/radeon_clocks.c
@@ -219,6 +219,9 @@ void radeon_get_clock_info(struct drm_de
} else {
DRM_INFO("Using generic clock info\n");

+ /* may need to be per card */
+ rdev->clock.max_pixel_clock = 35000;
+
if (rdev->flags & RADEON_IS_IGP) {
p1pll->reference_freq = 1432;
p2pll->reference_freq = 1432;


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