[PATCH] ASoC: atmel-i2s: Use devm_clk_get_enabled() for pclk

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

The peripheral clock is only acquired and enabled once during
probe. Use devm_clk_get_enabled() to combine clock acquisition
and enabling into a single call.

This also removes the need for manual clock disable handling
on probe failures and in the remove callback, as the devm API
automatically handles clock cleanup.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/atmel/atmel-i2s.c | 25 ++++---------------------
 1 file changed, 4 insertions(+), 21 deletions(-)

diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
index e1d8af056234..a3aeb8e607f6 100644
--- a/sound/soc/atmel/atmel-i2s.c
+++ b/sound/soc/atmel/atmel-i2s.c
@@ -660,8 +660,8 @@ static int atmel_i2s_probe(struct platform_device *pdev)
 	if (err)
 		return err;
 
-	/* Get the peripheral clock. */
-	dev->pclk = devm_clk_get(&pdev->dev, "pclk");
+	/* Get and enable the peripheral clock. */
+	dev->pclk = devm_clk_get_enabled(&pdev->dev, "pclk");
 	if (IS_ERR(dev->pclk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(dev->pclk),
 				     "failed to get the peripheral clock\n");
@@ -682,11 +682,6 @@ static int atmel_i2s_probe(struct platform_device *pdev)
 			return err;
 	}
 
-	/* Enable the peripheral clock. */
-	err = clk_prepare_enable(dev->pclk);
-	if (err)
-		return err;
-
 	/* Get IP version. */
 	regmap_read(dev->regmap, ATMEL_I2SC_VERSION, &version);
 	dev_info(&pdev->dev, "hw version: %#x\n", version);
@@ -698,10 +693,8 @@ static int atmel_i2s_probe(struct platform_device *pdev)
 	err = devm_snd_soc_register_component(&pdev->dev,
 					      &atmel_i2s_component,
 					      &atmel_i2s_dai, 1);
-	if (err) {
-		clk_disable_unprepare(dev->pclk);
+	if (err)
 		return err;
-	}
 
 	/* Prepare DMA config. */
 	dev->playback.addr	= (dma_addr_t)mem->start + ATMEL_I2SC_THR;
@@ -712,28 +705,18 @@ static int atmel_i2s_probe(struct platform_device *pdev)
 	if (of_property_match_string(np, "dma-names", "rx-tx") == 0)
 		pcm_flags |= SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX;
 	err = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, pcm_flags);
-	if (err) {
-		clk_disable_unprepare(dev->pclk);
+	if (err)
 		return err;
-	}
 
 	return 0;
 }
 
-static void atmel_i2s_remove(struct platform_device *pdev)
-{
-	struct atmel_i2s_dev *dev = platform_get_drvdata(pdev);
-
-	clk_disable_unprepare(dev->pclk);
-}
-
 static struct platform_driver atmel_i2s_driver = {
 	.driver		= {
 		.name	= "atmel_i2s",
 		.of_match_table	= atmel_i2s_dt_ids,
 	},
 	.probe		= atmel_i2s_probe,
-	.remove		= atmel_i2s_remove,
 };
 module_platform_driver(atmel_i2s_driver);
 
-- 
2.43.0