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| author |   Christian König <christian.koenig@amd.com> | 2014-04-19 18:57:14 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2014-04-19 18:57:14 +0200 |
| commit | 24315814239a3fdb306244c99bd076bc79db4ade (patch) | |
| tree | de70b306aad48d7439321bd8b4a234bc3bb65fe2 /drivers/gpu | |
| parent | drm/radeon: disable dpm on rv770 by default (diff) | |
| download | linux-dev-24315814239a3fdb306244c99bd076bc79db4ade.tar.xz linux-dev-24315814239a3fdb306244c99bd076bc79db4ade.zip | |
drm/radeon: use fixed PPL ref divider if needed
Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 2f7cbb901fb1..e6c3c5488259 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -880,7 +880,12 @@ void radeon_compute_pll_avivo(struct radeon_pll *pll, ref_div_min = pll->reference_div; else ref_div_min = pll->min_ref_div; - ref_div_max = pll->max_ref_div; + + if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && + pll->flags & RADEON_PLL_USE_REF_DIV) + ref_div_max = pll->reference_div; + else + ref_div_max = pll->max_ref_div; /* determine allowed post divider range */ if (pll->flags & RADEON_PLL_USE_POST_DIV) { |