i2c: lpc2k: Use devm_clk_get_enabled()

Replace the pair of functions, devm_clk_get() and clk_prepare_enable(),
with a single function devm_clk_get_enabled().

Signed-off-by: Andi Shyti <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>

Author: Andi Shyti

drivers/i2c/busses/i2c-lpc2k.c

@@ -365,23 +365,17 @@ static int i2c_lpc2k_probe(struct platform_device *pdev)
 
 	init_waitqueue_head(&i2c->wait);
 
-	i2c->clk = devm_clk_get(&pdev->dev, NULL);
+	i2c->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(i2c->clk)) {
-		dev_err(&pdev->dev, "error getting clock\n");
+		dev_err(&pdev->dev, "failed to enable clock.\n");
 		return PTR_ERR(i2c->clk);
 	}
 
-	ret = clk_prepare_enable(i2c->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "unable to enable clock.\n");
-		return ret;
-	}
-
 	ret = devm_request_irq(&pdev->dev, i2c->irq, i2c_lpc2k_handler, 0,
 			       dev_name(&pdev->dev), i2c);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "can't request interrupt.\n");
-		goto fail_clk;
+		return ret;
 	}
 
 	disable_irq_nosync(i2c->irq);
@@ -397,8 +391,7 @@ static int i2c_lpc2k_probe(struct platform_device *pdev)
 	clkrate = clk_get_rate(i2c->clk);
 	if (clkrate == 0) {
 		dev_err(&pdev->dev, "can't get I2C base clock\n");
-		ret = -EINVAL;
-		goto fail_clk;
+		return -EINVAL;
 	}
 
 	/* Setup I2C dividers to generate clock with proper duty cycle */
@@ -424,23 +417,18 @@ static int i2c_lpc2k_probe(struct platform_device *pdev)
 
 	ret = i2c_add_adapter(&i2c->adap);
 	if (ret < 0)
-		goto fail_clk;
+		return ret;
 
 	dev_info(&pdev->dev, "LPC2K I2C adapter\n");
 
 	return 0;
-
-fail_clk:
-	clk_disable_unprepare(i2c->clk);
-	return ret;
 }
 
 static void i2c_lpc2k_remove(struct platform_device *dev)
 {
 	struct lpc2k_i2c *i2c = platform_get_drvdata(dev);
 
 	i2c_del_adapter(&i2c->adap);
-	clk_disable_unprepare(i2c->clk);
 }
 
 #ifdef CONFIG_PM