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drm/radeon: don't share PPLLs on DCE4.1

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Sharing PPLLs seems to cause problems on some boards.

Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=45334

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2013-10-31 16:43:27 -04:00
parent 6960394fe2
commit 70471860ff
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/radeon/atombios_crtc.c
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@ -1753,7 +1753,7 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc)
if (pll != ATOM_PPLL_INVALID) if (pll != ATOM_PPLL_INVALID)
return pll; return pll;
} }
} else { } else if (!ASIC_IS_DCE41(rdev)) { /* Don't share PLLs on DCE4.1 chips */
/* use the same PPLL for all monitors with the same clock */ /* use the same PPLL for all monitors with the same clock */
pll = radeon_get_shared_nondp_ppll(crtc); pll = radeon_get_shared_nondp_ppll(crtc);
if (pll != ATOM_PPLL_INVALID) if (pll != ATOM_PPLL_INVALID)