| From 0e5585dc870af947fab2af96a88c2d8b4270247c Mon Sep 17 00:00:00 2001 |
| From: Alex Deucher <alexander.deucher@amd.com> |
| Date: Mon, 28 Mar 2016 10:21:20 -0400 |
| Subject: drm/radeon: add a dpm quirk for all R7 370 parts |
| |
| 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/gpu/drm/radeon/si_dpm.c | 4 ++++ |
| 1 file changed, 4 insertions(+) |
| |
| --- 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( |
| } |
| ++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; |
