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tty: serial: 8250_mtk: Use devm_clk_get

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When a struct device * is present clk_get should be used rather
than of_clk_get. Use the devm variant of this function to be able to
drop the clk_put in the error and remove pathes. While at it fix
a wrong error message.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sascha Hauer 2015-04-27 08:49:55 +02:00 committed by Greg Kroah-Hartman
parent 59f89f21b5
commit a5fd844599
1 changed files with 2 additions and 5 deletions
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7
drivers/tty/serial/8250/8250_mtk.c
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@ -131,18 +131,16 @@ static int mtk8250_probe_of(struct platform_device *pdev, struct uart_port *p,
struct mtk8250_data *data)
{
int err;
struct device_node *np = pdev->dev.of_node;
data->uart_clk = of_clk_get(np, 0);
data->uart_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(data->uart_clk)) {
dev_warn(&pdev->dev, "Can't get timer clock\n");
dev_warn(&pdev->dev, "Can't get uart clock\n");
return PTR_ERR(data->uart_clk);
}
err = clk_prepare_enable(data->uart_clk);
if (err) {
dev_warn(&pdev->dev, "Can't prepare clock\n");
clk_put(data->uart_clk);
return err;
}
p->uartclk = clk_get_rate(data->uart_clk);
@ -215,7 +213,6 @@ static int mtk8250_remove(struct platform_device *pdev)
serial8250_unregister_port(data->line);
clk_disable_unprepare(data->uart_clk);
clk_put(data->uart_clk);
pm_runtime_disable(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);