| From | Herton Ronaldo Krzesinski <> | Subject | [PATCH 086/222] drm/radeon/dce32+: use fractional fb dividers for high clocks | Date | Wed, 16 Jan 2013 13:54:46 -0200 |
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3.5.7.3 -stable review patch. If anyone has any objections, please let me know.
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From: Alex Deucher <alexander.deucher@amd.com>
commit a02dc74b317d78298cb0587b9b1f6f741fd5c139 upstream.
Fixes flickering with some high res montiors.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> [ herton: on 3.5, set pll->flags instead of radeon_crtc->pll_flags ] Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/gpu/drm/radeon/atombios_crtc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 25b8014..80eb8d5 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -577,6 +577,8 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, /* use frac fb div on APUs */ if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev)) pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV; + if (ASIC_IS_DCE32(rdev) && mode->clock > 165000) + pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV; } else { pll->flags |= RADEON_PLL_LEGACY; -- 1.7.9.5
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