diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 8 | ||||
| -rw-r--r-- | include/linux/pci.h | 1 | ||||
| -rw-r--r-- | include/linux/platform_device.h | 1 | ||||
| -rw-r--r-- | include/linux/pm.h | 76 |
4 files changed, 29 insertions, 57 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 1a3686d..4a52005 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -65,7 +65,7 @@ struct bus_type { int (*resume_early)(struct device *dev); int (*resume)(struct device *dev); - struct pm_ext_ops *pm; + struct dev_pm_ops *pm; struct bus_type_private *p; }; @@ -133,7 +133,7 @@ struct device_driver { int (*resume) (struct device *dev); struct attribute_group **groups; - struct pm_ops *pm; + struct dev_pm_ops *pm; struct driver_private *p; }; @@ -198,7 +198,7 @@ struct class { int (*suspend)(struct device *dev, pm_message_t state); int (*resume)(struct device *dev); - struct pm_ops *pm; + struct dev_pm_ops *pm; struct class_private *p; }; @@ -291,7 +291,7 @@ struct device_type { int (*suspend)(struct device *dev, pm_message_t state); int (*resume)(struct device *dev); - struct pm_ops *pm; + struct dev_pm_ops *pm; }; /* interface for exporting device attributes */ diff --git a/include/linux/pci.h b/include/linux/pci.h index 03b0b8c..4bb156b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -421,7 +421,6 @@ struct pci_driver { int (*resume_early) (struct pci_dev *dev); int (*resume) (struct pci_dev *dev); /* Device woken up */ void (*shutdown) (struct pci_dev *dev); - struct pm_ext_ops *pm; struct pci_error_handlers *err_handler; struct device_driver driver; struct pci_dynids dynids; diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 4b8cc6a..9a34269 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -55,7 +55,6 @@ struct platform_driver { int (*suspend_late)(struct platform_device *, pm_message_t state); int (*resume_early)(struct platform_device *); int (*resume)(struct platform_device *); - struct pm_ext_ops *pm; struct device_driver driver; }; diff --git a/include/linux/pm.h b/include/linux/pm.h index 42de400..5785666 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -41,7 +41,7 @@ typedef struct pm_message { } pm_message_t; /** - * struct pm_ops - device PM callbacks + * struct dev_pm_ops - device PM callbacks * * Several driver power state transitions are externally visible, affecting * the state of pending I/O queues and (for drivers that touch hardware) @@ -126,46 +126,6 @@ typedef struct pm_message { * On most platforms, there are no restrictions on availability of * resources like clocks during @restore(). * - * All of the above callbacks, except for @complete(), return error codes. - * However, the error codes returned by the resume operations, @resume(), - * @thaw(), and @restore(), do not cause the PM core to abort the resume - * transition during which they are returned. The error codes returned in - * that cases are only printed by the PM core to the system logs for debugging - * purposes. Still, it is recommended that drivers only return error codes - * from their resume methods in case of an unrecoverable failure (i.e. when the - * device being handled refuses to resume and becomes unusable) to allow us to - * modify the PM core in the future, so that it can avoid attempting to handle - * devices that failed to resume and their children. - * - * It is allowed to unregister devices while the above callbacks are being - * executed. However, it is not allowed to unregister a device from within any - * of its own callbacks. - */ - -struct pm_ops { - int (*prepare)(struct device *dev); - void (*complete)(struct device *dev); - int (*suspend)(struct device *dev); - int (*resume)(struct device *dev); - int (*freeze)(struct device *dev); - int (*thaw)(struct device *dev); - int (*poweroff)(struct device *dev); - int (*restore)(struct device *dev); -}; - -/** - * struct pm_ext_ops - extended device PM callbacks - * - * Some devices require certain operations related to suspend and hibernation - * to be carried out with interrupts disabled. Thus, 'struct pm_ext_ops' below - * is defined, adding callbacks to be executed with interrupts disabled to - * 'struct pm_ops'. - * - * The following callbacks included in 'struct pm_ext_ops' are executed with - * the nonboot CPUs switched off and with interrupts disabled on the only - * functional CPU. They also are executed with the PM core list of devices - * locked, so they must NOT unregister any devices. - * * @suspend_noirq: Complete the operations of ->suspend() by carrying out any * actions required for suspending the device that need interrupts to be * disabled @@ -190,18 +150,32 @@ struct pm_ops { * actions required for restoring the operations of the device that need * interrupts to be disabled * - * All of the above callbacks return error codes, but the error codes returned - * by the resume operations, @resume_noirq(), @thaw_noirq(), and - * @restore_noirq(), do not cause the PM core to abort the resume transition - * during which they are returned. The error codes returned in that cases are - * only printed by the PM core to the system logs for debugging purposes. - * Still, as stated above, it is recommended that drivers only return error - * codes from their resume methods if the device being handled fails to resume - * and is not usable any more. + * All of the above callbacks, except for @complete(), return error codes. + * However, the error codes returned by the resume operations, @resume(), + * @thaw(), @restore(), @resume_noirq(), @thaw_noirq(), and @restore_noirq() do + * not cause the PM core to abort the resume transition during which they are + * returned. The error codes returned in that cases are only printed by the PM + * core to the system logs for debugging purposes. Still, it is recommended + * that drivers only return error codes from their resume methods in case of an + * unrecoverable failure (i.e. when the device being handled refuses to resume + * and becomes unusable) to allow us to modify the PM core in the future, so + * that it can avoid attempting to handle devices that failed to resume and + * their children. + * + * It is allowed to unregister devices while the above callbacks are being + * executed. However, it is not allowed to unregister a device from within any + * of its own callbacks. */ -struct pm_ext_ops { - struct pm_ops base; +struct dev_pm_ops { + int (*prepare)(struct device *dev); + void (*complete)(struct device *dev); + int (*suspend)(struct device *dev); + int (*resume)(struct device *dev); + int (*freeze)(struct device *dev); + int (*thaw)(struct device *dev); + int (*poweroff)(struct device *dev); + int (*restore)(struct device *dev); int (*suspend_noirq)(struct device *dev); int (*resume_noirq)(struct device *dev); int (*freeze_noirq)(struct device *dev); |