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drm/amd/display: Set PSR level to enable ALPM by default

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[Why & How]
While support ALPM, do ALPM state transition while PSR entry/exit.
ALPM is needed for PSR-SU feature, and since the function is ready,
we'd enable it by default.

- Add psr level definition to enable/disable ALPM and set ALPM
  powerdone mode.
- Enable ALPM by default

Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David Zhang 2022-05-03 10:56:54 -04:00 committed by Alex Deucher
parent 6cc5c77300
commit c7eac19eda
2 changed files with 7 additions and 1 deletions
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4
drivers/gpu/drm/amd/display/dc/core/dc_link.c
View File

@ -3364,6 +3364,10 @@ bool dc_link_setup_psr(struct dc_link *link,
*/
psr_context->psr_level.bits.DISABLE_PSR_ENTRY_ABORT = 1;
/* enable ALPM */
psr_context->psr_level.bits.DISABLE_ALPM = 0;
psr_context->psr_level.bits.ALPM_DEFAULT_PD_MODE = 1;
/* Controls additional delay after remote frame capture before
* continuing power down, default = 0
*/

4
drivers/gpu/drm/amd/display/dc/dc_types.h
View File

@ -698,7 +698,9 @@ union dmcu_psr_level {
unsigned int SKIP_AUTO_STATE_ADVANCE:1;
unsigned int DISABLE_PSR_ENTRY_ABORT:1;
unsigned int SKIP_SINGLE_OTG_DISABLE:1;
unsigned int RESERVED:22;
unsigned int DISABLE_ALPM:1;
unsigned int ALPM_DEFAULT_PD_MODE:1;
unsigned int RESERVED:20;
} bits;
unsigned int u32all;
};