pinctrl: sunxi: Use devm_clk_get_enabled() helpers

sunxi sunxi_pinctrl_init_with_variant get, enable clk and
deinit_device disable and unprepare it.

This simplifes the code and avoids the calls to
clk_disable_unprepare().

Signed-off-by: Wang Jianzheng <[e-mail]>
Link: https://lore.kernel.org/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/sunxi/pinctrl-sunxi.c

···
 	}
 
 	ret = of_clk_get_parent_count(node);
-	clk = devm_clk_get(&pdev->dev, ret == 1 ? NULL : "apb");
+	clk = devm_clk_get_enabled(&pdev->dev, ret == 1 ? NULL : "apb");
 	if (IS_ERR(clk)) {
 		ret = PTR_ERR(clk);
 		goto gpiochip_error;
 	}
-
-	ret = clk_prepare_enable(clk);
-	if (ret)
-		goto gpiochip_error;
 
 	pctl->irq = devm_kcalloc(&pdev->dev,
 				 pctl->desc->irq_banks,
···
 				 GFP_KERNEL);
 	if (!pctl->irq) {
 		ret = -ENOMEM;
-		goto clk_error;
+		goto gpiochip_error;
 	}
 
 	for (i = 0; i < pctl->desc->irq_banks; i++) {
 		pctl->irq[i] = platform_get_irq(pdev, i);
 		if (pctl->irq[i] < 0) {
 			ret = pctl->irq[i];
-			goto clk_error;
+			goto gpiochip_error;
 		}
 	}
 
···
 	if (!pctl->domain) {
 		dev_err(&pdev->dev, "Couldn't register IRQ domain\n");
 		ret = -ENOMEM;
-		goto clk_error;
+		goto gpiochip_error;
 	}
 
 	for (i = 0; i < (pctl->desc->irq_banks * IRQ_PER_BANK); i++) {
···
 
 	return 0;
 
-clk_error:
-	clk_disable_unprepare(clk);
 gpiochip_error:
 	gpiochip_remove(pctl->chip);
 	return ret;