| From | Kamal Mostafa <> | Subject | [PATCH 4.2.y-ckt 11/70] drm/radeon: add a dpm quirk for all R7 370 parts | Date | Tue, 12 Apr 2016 13:51:56 -0700 |
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4.2.8-ckt8 -stable review patch. If anyone has any objections, please let me know.
---8<------------------------------------------------------------
From: Alex Deucher <alexander.deucher@amd.com>
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: Kamal Mostafa <kamal@canonical.com> --- drivers/gpu/drm/radeon/si_dpm.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 444935d..7285adb 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -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; -- 2.7.4
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