drm/amd/display: parse and check PSR SU caps

[why]
Adding a function to read PSR capabilities
and ALPM capabilities.
Also adding a helper function to validate if
the sink and the driver support PSR SU.
[how]
- isolated all PSR and ALPM reading calls to a separate funciton
- set all required PSR caps
- added a helper function to check if PSR SU is supported by sink
and the driver

Reviewed-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index cb26ff8a54c5..0285a4b38d05 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -951,6 +951,7 @@ enum dc_gpu_mem_alloc_type {
 
 enum dc_psr_version {
 	DC_PSR_VERSION_1			= 0,
+	DC_PSR_VERSION_SU_1			= 1,
 	DC_PSR_VERSION_UNSUPPORTED		= 0xFFFFFFFF,
 };