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gpio: mxc: Use devm_clk_get_optional instead of devm_clk_get

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i.MX SoC's GPIO clock is optional, so it is better to use
devm_clk_get_optional instead of devm_clk_get.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This commit is contained in:
Anson Huang 2019-08-01 16:44:39 +08:00 committed by Bartosz Golaszewski
parent 61059b7048
commit 7beb620f80
1 changed files with 3 additions and 6 deletions
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9
drivers/gpio/gpio-mxc.c
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@ -435,12 +435,9 @@ static int mxc_gpio_probe(struct platform_device *pdev)
return port->irq;
/* the controller clock is optional */
port->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(port->clk)) {
if (PTR_ERR(port->clk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
port->clk = NULL;
}
port->clk = devm_clk_get_optional(&pdev->dev, NULL);
if (IS_ERR(port->clk))
return PTR_ERR(port->clk);
err = clk_prepare_enable(port->clk);
if (err) {