drm/amd/display: Add DMCU firmware version

Read the version number from the common firmware header and store
it in the dm struct

Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -589,6 +589,8 @@ static int load_dmcu_fw(struct amdgpu_device *adev)
 	adev->firmware.fw_size +=
 		ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
 
+	adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version);
+
 	DRM_DEBUG_KMS("PSP loading DMCU firmware\n");
 
 	return 0;

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h

@@ -131,6 +131,7 @@ struct amdgpu_display_manager {
 	struct dm_comressor_info compressor;
 
 	const struct firmware *fw_dmcu;
+	uint32_t dmcu_fw_version;
 };
 
 struct amdgpu_dm_connector {