media: imx-jpeg: Apply clk_bulk api instead of operating specific clk

using the api of clk_bulk can simplify the code.
and the clock of the jpeg codec may be changed,
the clk_bulk api can be compatible with the future change.

Fixes: 4c2e5156 ("media: imx-jpeg: Add pm-runtime support for imx-jpeg")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c

@@ -2472,19 +2472,12 @@ static int mxc_jpeg_probe(struct platform_device *pdev)
 	jpeg->mode = mode;
 
 	/* Get clocks */
-	jpeg->clk_ipg = devm_clk_get(dev, "ipg");
-	if (IS_ERR(jpeg->clk_ipg)) {
-		dev_err(dev, "failed to get clock: ipg\n");
-		ret = PTR_ERR(jpeg->clk_ipg);
-		goto err_clk;
-	}
-
-	jpeg->clk_per = devm_clk_get(dev, "per");
-	if (IS_ERR(jpeg->clk_per)) {
-		dev_err(dev, "failed to get clock: per\n");
-		ret = PTR_ERR(jpeg->clk_per);
+	ret = devm_clk_bulk_get_all(&pdev->dev, &jpeg->clks);
+	if (ret < 0) {
+		dev_err(dev, "failed to get clock\n");
 		goto err_clk;
 	}
+	jpeg->num_clks = ret;
 
 	ret = mxc_jpeg_attach_pm_domains(jpeg);
 	if (ret < 0) {
@@ -2581,32 +2574,20 @@ static int mxc_jpeg_runtime_resume(struct device *dev)
 	struct mxc_jpeg_dev *jpeg = dev_get_drvdata(dev);
 	int ret;
 
-	ret = clk_prepare_enable(jpeg->clk_ipg);
-	if (ret < 0) {
-		dev_err(dev, "failed to enable clock: ipg\n");
-		goto err_ipg;
-	}
-
-	ret = clk_prepare_enable(jpeg->clk_per);
+	ret = clk_bulk_prepare_enable(jpeg->num_clks, jpeg->clks);
 	if (ret < 0) {
-		dev_err(dev, "failed to enable clock: per\n");
-		goto err_per;
+		dev_err(dev, "failed to enable clock\n");
+		return ret;
 	}
 
 	return 0;
-
-err_per:
-	clk_disable_unprepare(jpeg->clk_ipg);
-err_ipg:
-	return ret;
 }
 
 static int mxc_jpeg_runtime_suspend(struct device *dev)
 {
 	struct mxc_jpeg_dev *jpeg = dev_get_drvdata(dev);
 
-	clk_disable_unprepare(jpeg->clk_ipg);
-	clk_disable_unprepare(jpeg->clk_per);
+	clk_bulk_disable_unprepare(jpeg->num_clks, jpeg->clks);
 
 	return 0;
 }

drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h

@@ -120,8 +120,8 @@ struct mxc_jpeg_dev {
 	spinlock_t			hw_lock; /* hardware access lock */
 	unsigned int			mode;
 	struct mutex			lock; /* v4l2 ioctls serialization */
-	struct clk			*clk_ipg;
-	struct clk			*clk_per;
+	struct clk_bulk_data		*clks;
+	int				num_clks;
 	struct platform_device		*pdev;
 	struct device			*dev;
 	void __iomem			*base_reg;