diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-11-13 18:03:41 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-12-07 19:48:22 -0500 |
| commit | a02dc74b317d78298cb0587b9b1f6f741fd5c139 (patch) | |
| tree | 78d91ffdc54c1419457c9d06b1b4376da12b867d /drivers/gpu/drm/radeon/atombios_crtc.c | |
| parent | 0d0b3e7443bed6b49cb90fe7ddc4b5578a83a88d (diff) | |
drm/radeon/dce32+: use fractional fb dividers for high clocks
Fixes flickering with some high res montiors.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 24d932f53203..9175615bbd8a 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -561,6 +561,8 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, /* use frac fb div on APUs */ if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev)) radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV; + if (ASIC_IS_DCE32(rdev) && mode->clock > 165000) + radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV; } else { radeon_crtc->pll_flags |= RADEON_PLL_LEGACY; |