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drm/radeon: add a dpm quirk for all R7 370 parts

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commit 0e5585dc870af947fab2af96a88c2d8b4270247c upstream.

Higher mclk values are not stable due to a bug somewhere.
Limit them for now.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher 2016-03-28 10:21:20 -04:00 committed by Greg Kroah-Hartman
parent ddf58bfd05
commit 0bccb7a91e
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/radeon/si_dpm.c
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@ -3010,6 +3010,10 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
}
++p;
}
/* limit mclk on all R7 370 parts for stability */
if (rdev->pdev->device == 0x6811 &&
rdev->pdev->revision == 0x81)
max_mclk = 120000;
if (rps->vce_active) {
rps->evclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].evclk;