From c7eac19eda0a82f0c1dd9455012754445772fd09 Mon Sep 17 00:00:00 2001 From: David Zhang Date: Tue, 3 May 2022 10:56:54 -0400 Subject: [PATCH] drm/amd/display: Set PSR level to enable ALPM by default [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 Acked-by: Leo Li Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 ++++ drivers/gpu/drm/amd/display/dc/dc_types.h | 4 +++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 68e9fc6b510c..31ffb961e18b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -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 */ diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index 144c387010c2..26b62f50ac4e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -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; }; -- 2.11.0