Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH] rtc-cmos: fix suspend/resume | Date | Thu, 16 Dec 2010 22:05:39 +0100 |
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On Thursday, December 16, 2010, Daniel Drake wrote: > From: Paul Fox <pgf@laptop.org> > > rtc-cmos was setting suspend/resume hooks at the device_driver level. > However, the platform bus code (drivers/base/platform.c) only looks > for resume hooks at the dev_pm_ops level, or within the platform_driver. > > Switch rtc_cmos to use dev_pm_ops so that suspend/resume code is > executed again. > > Signed-off-by: Paul Fox <pgf@laptop.org> > Signed-off-by: Daniel Drake <dsd@laptop.org> > --- > drivers/rtc/rtc-cmos.c | 14 +++++++++----- > 1 files changed, 9 insertions(+), 5 deletions(-) > > diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c > index 5856167..dfa5547 100644 > --- a/drivers/rtc/rtc-cmos.c > +++ b/drivers/rtc/rtc-cmos.c > @@ -850,7 +850,7 @@ static void __exit cmos_do_remove(struct device *dev) > > #ifdef CONFIG_PM > > -static int cmos_suspend(struct device *dev, pm_message_t mesg) > +static int cmos_suspend(struct device *dev) > { > struct cmos_rtc *cmos = dev_get_drvdata(dev); > unsigned char tmp; > @@ -898,7 +898,7 @@ static int cmos_suspend(struct device *dev, pm_message_t mesg) > */ > static inline int cmos_poweroff(struct device *dev) > { > - return cmos_suspend(dev, PMSG_HIBERNATE); > + return cmos_suspend(dev); > } > > static int cmos_resume(struct device *dev) > @@ -1077,7 +1077,7 @@ static void __exit cmos_pnp_remove(struct pnp_dev *pnp) > > static int cmos_pnp_suspend(struct pnp_dev *pnp, pm_message_t mesg) > { > - return cmos_suspend(&pnp->dev, mesg); > + return cmos_suspend(&pnp->dev); > } > > static int cmos_pnp_resume(struct pnp_dev *pnp) > @@ -1152,13 +1152,17 @@ static void cmos_platform_shutdown(struct platform_device *pdev) > /* work with hotplug and coldplug */ > MODULE_ALIAS("platform:rtc_cmos"); > > +static struct dev_pm_ops cmos_pm_ops = { > + .suspend = cmos_suspend, > + .resume = cmos_resume, > +};
That's not enough. Please also specify hibernation callbacks as documented in Documentation/power/devices.txt (they can point to the same routines as the suspend/resume ones).
Thanks, Rafael
> + > static struct platform_driver cmos_platform_driver = { > .remove = __exit_p(cmos_platform_remove), > .shutdown = cmos_platform_shutdown, > .driver = { > .name = (char *) driver_name, > - .suspend = cmos_suspend, > - .resume = cmos_resume, > + .pm = &cmos_pm_ops, > } > }; > >
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