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drm/radeon: don't share plls if monitors differ in audio support

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Enabling audio may enable different pll dividers.  Don't share
plls if the monitors differ in audio support.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=98751

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2015-05-26 18:01:05 -04:00
parent 990ed27207
commit a10f0df061
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/radeon/atombios_crtc.c
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@ -1798,7 +1798,9 @@ static int radeon_get_shared_nondp_ppll(struct drm_crtc *crtc)
if ((crtc->mode.clock == test_crtc->mode.clock) && if ((crtc->mode.clock == test_crtc->mode.clock) &&
(adjusted_clock == test_adjusted_clock) && (adjusted_clock == test_adjusted_clock) &&
(radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) && (radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) &&
(test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)) (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID) &&
(drm_detect_monitor_audio(radeon_connector_edid(test_radeon_crtc->connector)) ==
drm_detect_monitor_audio(radeon_connector_edid(radeon_crtc->connector))))
return test_radeon_crtc->pll_id; return test_radeon_crtc->pll_id;
} }
} }