diff options
author | Alex Dubov <oakad@yahoo.com> | 2006-12-11 01:55:37 +1100 |
---|---|---|
committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-02-04 20:54:10 +0100 |
commit | 41d78f7405659b55e082c5f0b3d1b625e75e1294 (patch) | |
tree | a9606dc48016abe80b797139b6156dc53b77d418 /drivers/misc | |
parent | 8b40adab9c6cb63cede72c3ce3c3fee1157719e0 (diff) |
tifm_core: add suspend/resume infrastructure for tifm devices
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/misc')
-rw-r--r-- | drivers/misc/tifm_core.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c index 4d62dab2ada3..6b10ebe9d936 100644 --- a/drivers/misc/tifm_core.c +++ b/drivers/misc/tifm_core.c @@ -14,7 +14,7 @@ #include <linux/idr.h> #define DRIVER_NAME "tifm_core" -#define DRIVER_VERSION "0.6" +#define DRIVER_VERSION "0.7" static DEFINE_IDR(tifm_adapter_idr); static DEFINE_SPINLOCK(tifm_adapter_lock); @@ -60,10 +60,41 @@ static int tifm_uevent(struct device *dev, char **envp, int num_envp, return 0; } +#ifdef CONFIG_PM + +static int tifm_device_suspend(struct device *dev, pm_message_t state) +{ + struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev); + struct tifm_driver *drv = fm_dev->drv; + + if (drv && drv->suspend) + return drv->suspend(fm_dev, state); + return 0; +} + +static int tifm_device_resume(struct device *dev) +{ + struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev); + struct tifm_driver *drv = fm_dev->drv; + + if (drv && drv->resume) + return drv->resume(fm_dev); + return 0; +} + +#else + +#define tifm_device_suspend NULL +#define tifm_device_resume NULL + +#endif /* CONFIG_PM */ + static struct bus_type tifm_bus_type = { .name = "tifm", .match = tifm_match, .uevent = tifm_uevent, + .suspend = tifm_device_suspend, + .resume = tifm_device_resume }; static void tifm_free(struct class_device *cdev) @@ -233,6 +264,8 @@ int tifm_register_driver(struct tifm_driver *drv) drv->driver.bus = &tifm_bus_type; drv->driver.probe = tifm_device_probe; drv->driver.remove = tifm_device_remove; + drv->driver.suspend = tifm_device_suspend; + drv->driver.resume = tifm_device_resume; return driver_register(&drv->driver); } |