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serial: sccnxp: Use devm_clk_get_enabled() helper

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The devm_clk_get_enabled() helper:
   - calls devm_clk_get()
   - calls clk_prepare_enable() and registers what is needed in order to
     call clk_disable_unprepare() when needed, as a managed resource.

This simplifies the code.
This also avoids some other warnings/issues. (see [1])

[1]: https://lore.kernel.org/all/20221118233101.never.215-kees@kernel.org/

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/735a807c2df835aa436dcbc76b374f983f89a9af.1672419577.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe JAILLET
2022-12-30 17:59:56 +01:00
committed by Greg Kroah-Hartman
parent 6e054678ff
commit 03e30f06e5
1 changed files with 1 additions and 11 deletions
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12
drivers/tty/serial/sccnxp.c
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@@ -913,23 +913,13 @@ static int sccnxp_probe(struct platform_device *pdev)
} else if (PTR_ERR(s->regulator) == -EPROBE_DEFER)
return -EPROBE_DEFER;
clk = devm_clk_get(&pdev->dev, NULL);
clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
if (ret == -EPROBE_DEFER)
goto err_out;
uartclk = 0;
} else {
ret = clk_prepare_enable(clk);
if (ret)
goto err_out;
ret = devm_add_action_or_reset(&pdev->dev,
(void(*)(void *))clk_disable_unprepare,
clk);
if (ret)
goto err_out;
uartclk = clk_get_rate(clk);
}