drm/amd/display: Add OPTC memory low power support

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[Why]
The OPTC memory blocks should be powered down when they are not in use.
This will reduce power consumption.

[How]
1. Set ODM_MEM_UNASSIGNED_PWR_MODE to shutdown memory when unassigned
2. Set ODM_MEM_VBLANK_PWR_MODE to light sleep mode when in vblank
3. Added a debug option to allow this behaviour to be turned off
4. Restructured debug options to use a bitfield in a way that's more clear

Signed-off-by: Jacky Liao <ziyu.liao@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jacky Liao 2020-10-15 17:42:16 -04:00 • committed by Alex Deucher

parent 91bda9e9d2

commit cae78e0331

4 changed files with 32 additions and 10 deletions

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10

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

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12

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

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6

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c

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14

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c

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