diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-04-02 00:06:25 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-12 00:54:04 +0400 |
| commit | 3e7e32bed1ceb3f3055c075bfdede9ec07125b33 (patch) | |
| tree | e620355d4f872d8f8b9b833f3de4af72c0c4fd4b /drivers/gpu/drm/radeon | |
| parent | 6f78014bfbeaa96d8c5b1180921bdbb0fdd98d0a (diff) | |
| download | linux-3e7e32bed1ceb3f3055c075bfdede9ec07125b33.tar.xz | |
drm/radeon: use frac fb div on RS780/RS880
commit 411678288d61ba17afe1f8afed92200be6bbc65d upstream.
Monitors seem to prefer it. Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=37696
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 21a892c6ab9c..6d6fdb3ba0d0 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -557,6 +557,9 @@ 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; + /* use frac fb div on RS780/RS880 */ + if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) + 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 { |