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drm/amd/powerplay/vega10: allow mclk switching with no displays 

If there are no displays attached, there is no reason to disable
mclk switching.

Fixes mclks getting set to high when there are no displays attached.

Reviewed-by: Eric Huang <JinhuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2018-02-13 14:25:11 -05:00
parent 6ce2d46c4f
commit d6bca7e714
1 changed files with 7 additions and 4 deletions
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11
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
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@ -3171,10 +3171,13 @@ static int vega10_apply_state_adjust_rules(struct pp_hwmgr *hwmgr,
PP_CAP(PHM_PlatformCaps_DisableMclkSwitchForVR); PP_CAP(PHM_PlatformCaps_DisableMclkSwitchForVR);
force_mclk_high = PP_CAP(PHM_PlatformCaps_ForceMclkHigh); force_mclk_high = PP_CAP(PHM_PlatformCaps_ForceMclkHigh);
disable_mclk_switching = (info.display_count > 1) || if (info.display_count == 0)
disable_mclk_switching_for_frame_lock || disable_mclk_switching = false;
disable_mclk_switching_for_vr || else
force_mclk_high; disable_mclk_switching = (info.display_count > 1) ||
disable_mclk_switching_for_frame_lock ||
disable_mclk_switching_for_vr ||
force_mclk_high;
sclk = vega10_ps->performance_levels[0].gfx_clock; sclk = vega10_ps->performance_levels[0].gfx_clock;
mclk = vega10_ps->performance_levels[0].mem_clock; mclk = vega10_ps->performance_levels[0].mem_clock;