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drm/amd/powerplay: make sure VCE is disabled by default 

This patch is a port of similar patch for amdgpu
when PP is disabled. Since the code flow is little
different when PP is enabled, we need to make sure
the patch is applied for PP enabled path as well.

With the current code, when we boot with the amdgpu
driver enabled and loaded, the VCE also automatically
remains enabled since bootup. This can be verified from
the output of amdgpu_pm_info. It does not matter whether
we boot into command line directly or into X, the VCE
stays enabled the entire time.

This patch addresses the issue and makes sure that
VCE is turned on only during playback, and remains
disabled otherwise.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Arindam Nath 2016-06-20 16:05:01 +05:30 committed by Alex Deucher
parent fb065ce7d3
commit 505bc983bf
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
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@ -225,6 +225,7 @@ int cz_dpm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate)
} }
} }
} else { } else {
cz_hwmgr->vce_power_gated = bgate;
cz_dpm_update_vce_dpm(hwmgr); cz_dpm_update_vce_dpm(hwmgr);
cz_enable_disable_vce_dpm(hwmgr, !bgate); cz_enable_disable_vce_dpm(hwmgr, !bgate);
return 0; return 0;