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>

diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
index 02be34e72ed906d1e2caea46e31976f4a4a75ea3..240dc8c858678abf00d048d11184b9fa6021bc79 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
@@ -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;