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drm/amd: Add PSP DMCU support 

DMCU (Display Microcontroller Unit) is a GPU chip involved in
eDP features like Adaptive Backlight Modulation and Panel Self
Refresh.

PSP is already equipped to handle DMCU firmware loading, all
that is needed is to translate between the new DMCU ucode ID and
the equivalent psp_gfx_fw_type.

Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David Francis 2018-09-11 13:46:41 -04:00 committed by Alex Deucher
parent 01fcfc83fe
commit 6b7eab2ce6
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
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@ -91,6 +91,12 @@ psp_v10_0_get_fw_type(struct amdgpu_firmware_info *ucode, enum psp_gfx_fw_type *
case AMDGPU_UCODE_ID_VCN:
*type = GFX_FW_TYPE_VCN;
break;
case AMDGPU_UCODE_ID_DMCU_ERAM:
*type = GFX_FW_TYPE_DMCU_ERAM;
break;
case AMDGPU_UCODE_ID_DMCU_INTV:
*type = GFX_FW_TYPE_DMCU_ISR;
break;
case AMDGPU_UCODE_ID_MAXIMUM:
default:
return -EINVAL;