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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * i2c-smbus.h - SMBus extensions to the I2C protocol
- *
- * Copyright (C) 2010-2019 Jean Delvare <[email protected]>
- */
- #ifndef _LINUX_I2C_SMBUS_H
- #define _LINUX_I2C_SMBUS_H
- #include <linux/i2c.h>
- #include <linux/spinlock.h>
- #include <linux/workqueue.h>
- /**
- * i2c_smbus_alert_setup - platform data for the smbus_alert i2c client
- * @irq: IRQ number, if the smbus_alert driver should take care of interrupt
- * handling
- *
- * If irq is not specified, the smbus_alert driver doesn't take care of
- * interrupt handling. In that case it is up to the I2C bus driver to either
- * handle the interrupts or to poll for alerts.
- */
- struct i2c_smbus_alert_setup {
- int irq;
- };
- struct i2c_client *i2c_new_smbus_alert_device(struct i2c_adapter *adapter,
- struct i2c_smbus_alert_setup *setup);
- int i2c_handle_smbus_alert(struct i2c_client *ara);
- #if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_I2C_SLAVE)
- struct i2c_client *i2c_new_slave_host_notify_device(struct i2c_adapter *adapter);
- void i2c_free_slave_host_notify_device(struct i2c_client *client);
- #else
- static inline struct i2c_client *i2c_new_slave_host_notify_device(struct i2c_adapter *adapter)
- {
- return ERR_PTR(-ENOSYS);
- }
- static inline void i2c_free_slave_host_notify_device(struct i2c_client *client)
- {
- }
- #endif
- #if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_DMI)
- void i2c_register_spd(struct i2c_adapter *adap);
- #else
- static inline void i2c_register_spd(struct i2c_adapter *adap) { }
- #endif
- #endif /* _LINUX_I2C_SMBUS_H */
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