media: mtk-jpeg: add jpeg single core initial function

add single core initial function to init reg_base,
irq and clk.
Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c

@@ -1671,28 +1671,12 @@ static void mtk_jpeg_job_timeout_work(struct work_struct *work)
 	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
 }
 
-static int mtk_jpeg_probe(struct platform_device *pdev)
+static int mtk_jpeg_single_core_init(struct platform_device *pdev,
+				     struct mtk_jpeg_dev *jpeg_dev)
 {
-	struct mtk_jpeg_dev *jpeg;
-	int jpeg_irq;
-	int ret;
-
-	jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
-	if (!jpeg)
-		return -ENOMEM;
-
-	mutex_init(&jpeg->lock);
-	spin_lock_init(&jpeg->hw_lock);
-	jpeg->dev = &pdev->dev;
-	jpeg->variant = of_device_get_match_data(jpeg->dev);
+	struct mtk_jpeg_dev *jpeg = jpeg_dev;
+	int jpeg_irq, ret;
 
-	ret = devm_of_platform_populate(&pdev->dev);
-	if (ret) {
-		v4l2_err(&jpeg->v4l2_dev, "Master of platform populate failed.");
-		return -EINVAL;
-	}
-
-	if (!jpeg->variant->multi_core) {
 	INIT_DELAYED_WORK(&jpeg->job_timeout_work,
 			  mtk_jpeg_job_timeout_work);
 
@@ -1724,6 +1708,36 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Failed to init clk\n");
 		return ret;
 	}
+
+	return 0;
+}
+
+static int mtk_jpeg_probe(struct platform_device *pdev)
+{
+	struct mtk_jpeg_dev *jpeg;
+	int ret;
+
+	jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
+	if (!jpeg)
+		return -ENOMEM;
+
+	mutex_init(&jpeg->lock);
+	spin_lock_init(&jpeg->hw_lock);
+	jpeg->dev = &pdev->dev;
+	jpeg->variant = of_device_get_match_data(jpeg->dev);
+
+	ret = devm_of_platform_populate(&pdev->dev);
+	if (ret) {
+		v4l2_err(&jpeg->v4l2_dev, "Master of platform populate failed.");
+		return -EINVAL;
+	}
+
+	if (!jpeg->variant->multi_core) {
+		ret = mtk_jpeg_single_core_init(pdev, jpeg);
+		if (ret) {
+			v4l2_err(&jpeg->v4l2_dev, "mtk_jpeg_single_core_init failed.");
+			return -EINVAL;
+		}
 	}
 
 	ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);