[PATCH 3/5] ASoC: atmel-i2s: use optional API for gclk

[phucduc.bui@gmail.com]

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

The gclk is an optional clock according to the device tree binding.

Use devm_clk_get_optional() to handle the optional gclk directly.

Unlike the existing code, errors other than -EPROBE_DEFER are now
returned instead of being silently ignored.

Fixes: 73ad0df57290 ("ASoC: atmel-i2s: Remove unnecessary audio PLL clock (aclk)")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/atmel/atmel-i2s.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
index c52d048449f8..6ca230f8adc8 100644
--- a/sound/soc/atmel/atmel-i2s.c
+++ b/sound/soc/atmel/atmel-i2s.c
@@ -670,13 +670,10 @@ static int atmel_i2s_probe(struct platform_device *pdev)
 	}
 
 	/* Get audio clock to generate the I2S Master Clock (I2S_MCK) */
-	dev->gclk = devm_clk_get(&pdev->dev, "gclk");
-	if (IS_ERR(dev->gclk)) {
-		if (PTR_ERR(dev->gclk) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-		/* Master Mode not supported */
-		dev->gclk = NULL;
-	}
+	dev->gclk = devm_clk_get_optional(&pdev->dev, "gclk");
+	if (IS_ERR(dev->gclk))
+		return PTR_ERR(dev->gclk);
+
 	dev->dev = &pdev->dev;
 	dev->regmap = regmap;
 	platform_set_drvdata(pdev, dev);
-- 
2.43.0