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8250: mediatek: mark PM functions as __maybe_unused

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The mtk8250_runtime_suspend function is not used when runtime PM is
disabled, so we get a warning about an unused function:

drivers/tty/serial/8250/8250_mtk.c:119:12: error: 'mtk8250_runtime_suspend' defined but not used [-Werror=unused-function]
 static int mtk8250_runtime_suspend(struct device *dev)

This marks all the PM functions as __maybe_unused to avoid the warning,
and removes the #ifdef around the PM_SLEEP functions for consistency.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2016-02-08 14:36:13 +01:00 committed by Greg Kroah-Hartman
parent 146f3808e0
commit 9db669f14f
1 changed files with 4 additions and 6 deletions
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10
drivers/tty/serial/8250/8250_mtk.c
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@ -116,7 +116,7 @@ mtk8250_set_termios(struct uart_port *port, struct ktermios *termios,
tty_termios_encode_baud_rate(termios, baud, baud);
}
static int mtk8250_runtime_suspend(struct device *dev)
static int __maybe_unused mtk8250_runtime_suspend(struct device *dev)
{
struct mtk8250_data *data = dev_get_drvdata(dev);
@ -126,7 +126,7 @@ static int mtk8250_runtime_suspend(struct device *dev)
return 0;
}
static int mtk8250_runtime_resume(struct device *dev)
static int __maybe_unused mtk8250_runtime_resume(struct device *dev)
{
struct mtk8250_data *data = dev_get_drvdata(dev);
int err;
@ -245,8 +245,7 @@ static int mtk8250_probe(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int mtk8250_suspend(struct device *dev)
static int __maybe_unused mtk8250_suspend(struct device *dev)
{
struct mtk8250_data *data = dev_get_drvdata(dev);
@ -255,7 +254,7 @@ static int mtk8250_suspend(struct device *dev)
return 0;
}
static int mtk8250_resume(struct device *dev)
static int __maybe_unused mtk8250_resume(struct device *dev)
{
struct mtk8250_data *data = dev_get_drvdata(dev);
@ -263,7 +262,6 @@ static int mtk8250_resume(struct device *dev)
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static const struct dev_pm_ops mtk8250_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(mtk8250_suspend, mtk8250_resume)