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| author | David Brownell <david-b@pacbell.net> | 2006-09-03 13:16:45 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-25 21:08:38 -0700 |
| commit | 386415d88b1ae50304f9c61aa3e0db082fa90428 (patch) | |
| tree | 15672b43c03e0fc17ac0c8339883e7b4fb1a5073 | |
| parent | bb84c89f94851161f387285d0a449b4a3f29f4df (diff) | |
| download | kernel_samsung_espresso10-386415d88b1ae50304f9c61aa3e0db082fa90428.zip kernel_samsung_espresso10-386415d88b1ae50304f9c61aa3e0db082fa90428.tar.gz kernel_samsung_espresso10-386415d88b1ae50304f9c61aa3e0db082fa90428.tar.bz2 | |
PM: platform_bus and late_suspend/early_resume
Teach platform_bus about the new suspend_late/resume_early PM calls,
issued with IRQs off. Do we really need sysdev and friends any more,
or can janitors start switching its users over to platform_device so
we can do a minor code-ectomy?
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/base/platform.c | 30 | ||||
| -rw-r--r-- | include/linux/platform_device.h | 2 |
2 files changed, 30 insertions, 2 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 2b8755d..940ce41 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -505,12 +505,36 @@ static int platform_match(struct device * dev, struct device_driver * drv) return (strncmp(pdev->name, drv->name, BUS_ID_SIZE) == 0); } -static int platform_suspend(struct device * dev, pm_message_t state) +static int platform_suspend(struct device *dev, pm_message_t mesg) { int ret = 0; if (dev->driver && dev->driver->suspend) - ret = dev->driver->suspend(dev, state); + ret = dev->driver->suspend(dev, mesg); + + return ret; +} + +static int platform_suspend_late(struct device *dev, pm_message_t mesg) +{ + struct platform_driver *drv = to_platform_driver(dev->driver); + struct platform_device *pdev = container_of(dev, struct platform_device, dev); + int ret = 0; + + if (dev->driver && drv->suspend_late) + ret = drv->suspend_late(pdev, mesg); + + return ret; +} + +static int platform_resume_early(struct device *dev) +{ + struct platform_driver *drv = to_platform_driver(dev->driver); + struct platform_device *pdev = container_of(dev, struct platform_device, dev); + int ret = 0; + + if (dev->driver && drv->resume_early) + ret = drv->resume_early(pdev); return ret; } @@ -531,6 +555,8 @@ struct bus_type platform_bus_type = { .match = platform_match, .uevent = platform_uevent, .suspend = platform_suspend, + .suspend_late = platform_suspend_late, + .resume_early = platform_resume_early, .resume = platform_resume, }; EXPORT_SYMBOL_GPL(platform_bus_type); diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 782090c..29cd6de 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -49,6 +49,8 @@ struct platform_driver { int (*remove)(struct platform_device *); void (*shutdown)(struct platform_device *); int (*suspend)(struct platform_device *, pm_message_t state); + int (*suspend_late)(struct platform_device *, pm_message_t state); + int (*resume_early)(struct platform_device *); int (*resume)(struct platform_device *); struct device_driver driver; }; |