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| author |   Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2015-01-16 13:56:02 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-02-02 10:11:25 -0800 |
| commit | cb8763417224340f9a6092092077c801ce686eba (patch) | |
| tree | 8d630bbf75d44789789362939424e9389483a34e /drivers/tty/serial/sh-sci.c | |
| parent | pty: Fix overlimit memory use (diff) | |
| download | linux-dev-cb8763417224340f9a6092092077c801ce686eba.tar.xz linux-dev-cb8763417224340f9a6092092077c801ce686eba.zip | |
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: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index e032963989fc..4f784f8bf264 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -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, |