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| author | Alex Deucher <alexander.deucher@amd.com> | 2019-08-22 14:17:57 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-08-23 11:33:00 -0500 |
| commit | d99f38aed1a03f78cb7ae04d86e7fc5ac70411e3 (patch) | |
| tree | 4b3d3d8b749555d0685368e6cfd0abcc1c1a3dba /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 8b2608f1cfece410801a7f5fba374abde4540c0c (diff) | |
| download | lwn-d99f38aed1a03f78cb7ae04d86e7fc5ac70411e3.tar.gz lwn-d99f38aed1a03f78cb7ae04d86e7fc5ac70411e3.zip | |
drm/amdgpu/display: add flag for multi-display mclk switching
Add a dcfeaturemask flag for mclk switching. Disable by default;
enable once the feature has seen more testing.
Set amdgpu.dcfeaturemask=2 on the kernel command line in grub
to enable this.
Acked-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 6590317e41f3..15e256d3ab47 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -694,6 +694,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) if (amdgpu_dc_feature_mask & DC_FBC_MASK) init_data.flags.fbc_support = true; + if (amdgpu_dc_feature_mask & DC_MULTI_MON_PP_MCLK_SWITCH_MASK) + init_data.flags.multi_mon_pp_mclk_switch = true; + init_data.flags.power_down_display_on_boot = true; #ifdef CONFIG_DRM_AMD_DC_DCN2_0 |