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drm/radeon/si_dpm: Limit clocks on HD86xx part

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Limit clocks on a specific HD86xx part to avoid
crashes (while awaiting an appropriate PP fix).

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Tom St Denis 2016-10-13 12:38:07 -04:00 committed by Alex Deucher
parent 77f7f71f5b
commit fb9a5b0c1c
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/radeon/si_dpm.c
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@ -3021,6 +3021,12 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
max_sclk = 75000;
max_mclk = 80000;
}
/* limit clocks on HD8600 series */
if (rdev->pdev->device == 0x6660 &&
rdev->pdev->revision == 0x83) {
max_sclk = 75000;
max_mclk = 80000;
}
if (rps->vce_active) {
rps->evclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].evclk;