drm/amdgpu/display: add flag for multi-display mclk switching

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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>

...

This commit is contained in:

Alex Deucher 2019-08-22 14:17:57 -05:00

parent 8b2608f1cf

commit d99f38aed1

4 changed files with 9 additions and 2 deletions

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3

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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5

drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c

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2

drivers/gpu/drm/amd/display/dc/dc.h

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1

drivers/gpu/drm/amd/include/amd_shared.h

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