mirror of https://gitee.com/openkylin/linux.git
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>
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@ -2605,7 +2605,7 @@ static int sci_probe(struct platform_device *dev)
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return 0;
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}
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static int sci_suspend(struct device *dev)
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static __maybe_unused int sci_suspend(struct device *dev)
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{
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struct sci_port *sport = dev_get_drvdata(dev);
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@ -2615,7 +2615,7 @@ static int sci_suspend(struct device *dev)
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return 0;
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}
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static int sci_resume(struct device *dev)
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static __maybe_unused int sci_resume(struct device *dev)
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{
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struct sci_port *sport = dev_get_drvdata(dev);
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@ -2625,10 +2625,7 @@ static int sci_resume(struct device *dev)
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return 0;
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}
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static const struct dev_pm_ops sci_dev_pm_ops = {
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.suspend = sci_suspend,
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.resume = sci_resume,
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};
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static SIMPLE_DEV_PM_OPS(sci_dev_pm_ops, sci_suspend, sci_resume);
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static struct platform_driver sci_driver = {
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.probe = sci_probe,
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