diff --git a/drivers/gpu/drm/rockchip/dw-dp.c b/drivers/gpu/drm/rockchip/dw-dp.c
index 188e1195d272..2248cb6e8094 100644
--- a/drivers/gpu/drm/rockchip/dw-dp.c
+++ b/drivers/gpu/drm/rockchip/dw-dp.c
@@ -4984,25 +4984,22 @@ static const struct hdmi_codec_ops dw_dp_audio_codec_ops = {
 
 static int dw_dp_register_audio_driver(struct dw_dp *dp, struct dw_dp_audio *audio)
 {
-	struct hdmi_codec_pdata codec_data;
-	struct platform_device_info pdevinfo;
-
-	codec_data.ops = &dw_dp_audio_codec_ops,
-	codec_data.spdif = 1,
-	codec_data.i2s = 1,
-	codec_data.max_i2s_channels = 8,
-	codec_data.data = audio,
-
-	pdevinfo.parent = dp->dev,
-	pdevinfo.fwnode = dp->support_mst ? of_fwnode_handle(dp->mst_enc[audio->id].port_node) :
-			  of_fwnode_handle(dp->dev->of_node),
-	pdevinfo.name = HDMI_CODEC_DRV_NAME,
-	pdevinfo.id = PLATFORM_DEVID_AUTO,
-	pdevinfo.res = NULL,
-	pdevinfo.num_res = 0,
-	pdevinfo.data = &codec_data,
-	pdevinfo.size_data = sizeof(codec_data),
-	pdevinfo.dma_mask = 0,
+	struct hdmi_codec_pdata codec_data = {
+		.ops = &dw_dp_audio_codec_ops,
+		.spdif = 1,
+		.i2s = 1,
+		.max_i2s_channels = 8,
+		.data = audio,
+	};
+	struct platform_device_info pdevinfo = {
+		.parent = dp->dev,
+		.fwnode = dp->support_mst ? of_fwnode_handle(dp->mst_enc[audio->id].port_node) :
+			  NULL,
+		.name = HDMI_CODEC_DRV_NAME,
+		.id = PLATFORM_DEVID_AUTO,
+		.data = &codec_data,
+		.size_data = sizeof(codec_data),
+	};
 
 	audio->format = AFMT_UNUSED;
 	audio->pdev = platform_device_register_full(&pdevinfo);