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Commit cb876341 authored by Sergei Shtylyov's avatar Sergei Shtylyov Committed by Greg Kroah-Hartman
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sh-sci: extend PM methods 



In order to make it possible to restore from hibernation not only in Linux but
also in e.g. U-Boot, we have to use sci_{suspend|remove}() for the PM {freeze|
thaw|restore}() methods.  It's handy to achieve this by using SIMPLE_DEV_PM_OPS()
macro, however we have to annotate sci_{suspend|remove}() with '__maybe_unused'
in order to avoid compilation warnings when CONFIG_PM_SLEEP is undefined.

Based on orignal patch by Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>.

Signed-off-by: default avatarSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c81622ac

drivers/tty/serial/sh-sci.c

+3 −6
Original line number Diff line number Diff line
@@ -2605,7 +2605,7 @@ static int sci_probe(struct platform_device *dev) 
	return 0;

}



static int sci_suspend(struct device *dev)

static __maybe_unused int sci_suspend(struct device *dev)

{

	struct sci_port *sport = dev_get_drvdata(dev);
@@ -2615,7 +2615,7 @@ static int sci_suspend(struct device *dev) 
	return 0;

}



static int sci_resume(struct device *dev)

static __maybe_unused int sci_resume(struct device *dev)

{

	struct sci_port *sport = dev_get_drvdata(dev);
@@ -2625,10 +2625,7 @@ static int sci_resume(struct device *dev) 
	return 0;

}



static const struct dev_pm_ops sci_dev_pm_ops = {

	.suspend	= sci_suspend,

	.resume		= sci_resume,

};

static SIMPLE_DEV_PM_OPS(sci_dev_pm_ops, sci_suspend, sci_resume);



static struct platform_driver sci_driver = {

	.probe		= sci_probe,