diff options
Diffstat (limited to 'include/misc.h')
| -rw-r--r-- | include/misc.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/misc.h b/include/misc.h index ce2f05dfd4..50515852b2 100644 --- a/include/misc.h +++ b/include/misc.h @@ -60,6 +60,23 @@ int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size, void *rx_msg, int rx_size); /** + * misc_set_enabled() - Enable or disable a device. + * @dev: the device to enable or disable. + * @val: the flag that tells the driver to either enable or disable the device. + * + * The semantics of "disable" and "enable" should be understood here as + * activating or deactivating the device's primary function, hence a "disabled" + * device should be dormant, but still answer to commands and queries. + * + * A probed device may start in a disabled or enabled state, depending on the + * driver and hardware. + * + * Return: -ve on error, 0 if the previous state was "disabled", 1 if the + * previous state was "enabled" + */ +int misc_set_enabled(struct udevice *dev, bool val); + +/* * struct misc_ops - Driver model Misc operations * * The uclass interface is implemented by all miscellaneous devices which @@ -112,6 +129,16 @@ struct misc_ops { */ int (*call)(struct udevice *dev, int msgid, void *tx_msg, int tx_size, void *rx_msg, int rx_size); + /** + * Enable or disable a device, optional. + * @dev: the device to enable. + * @val: the flag that tells the driver to either enable or disable the + * device. + * + * Return: -ve on error, 0 if the previous state was "disabled", 1 if + * the previous state was "enabled" + */ + int (*set_enabled)(struct udevice *dev, bool val); }; #endif /* _MISC_H_ */ |