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authorMathias Fröhlich <Mathias.Froehlich@web.de>2009-10-19 17:49:49 -0400
committerDave Airlie <airlied@redhat.com>2009-10-26 13:28:20 +1000
commitbc293e58cb4095f2ad43fe672ae269e31d1a18e2 (patch)
tree910e8cfc41ce81f11113bf8e86b79611201babf2 /drivers/gpu/drm
parent790cfb34ad645be3bf69265cb05d824aeabcfa11 (diff)
drm/radeon/kms/atom: get better min pixel clock info
Where supported use ulMinPixelClockPLL_Output rather than usMinPixelClockPLL_Output for pll_out_min. This seems to improve pll selection on some boards. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/radeon_atombios.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 79d4b771c77..cec67917179 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -641,8 +641,12 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
le16_to_cpu(firmware_info->info.usReferenceClock);
p1pll->reference_div = 0;
- p1pll->pll_out_min =
- le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);
+ if (crev < 2)
+ p1pll->pll_out_min =
+ le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);
+ else
+ p1pll->pll_out_min =
+ le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
p1pll->pll_out_max =
le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);