1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * i2c-smbus.h - SMBus extensions to the I2C p 3 * i2c-smbus.h - SMBus extensions to the I2C protocol
4 * 4 *
5 * Copyright (C) 2010-2019 Jean Delvare <jdelv 5 * Copyright (C) 2010-2019 Jean Delvare <jdelvare@suse.de>
6 */ 6 */
7 7
8 #ifndef _LINUX_I2C_SMBUS_H 8 #ifndef _LINUX_I2C_SMBUS_H
9 #define _LINUX_I2C_SMBUS_H 9 #define _LINUX_I2C_SMBUS_H
10 10
11 #include <linux/i2c.h> 11 #include <linux/i2c.h>
12 #include <linux/spinlock.h> 12 #include <linux/spinlock.h>
13 #include <linux/workqueue.h> 13 #include <linux/workqueue.h>
14 14
15 15
16 /** 16 /**
17 * i2c_smbus_alert_setup - platform data for t 17 * i2c_smbus_alert_setup - platform data for the smbus_alert i2c client
18 * @irq: IRQ number, if the smbus_alert driver 18 * @irq: IRQ number, if the smbus_alert driver should take care of interrupt
19 * handling 19 * handling
20 * 20 *
21 * If irq is not specified, the smbus_alert dr 21 * If irq is not specified, the smbus_alert driver doesn't take care of
22 * interrupt handling. In that case it is up t 22 * interrupt handling. In that case it is up to the I2C bus driver to either
23 * handle the interrupts or to poll for alerts 23 * handle the interrupts or to poll for alerts.
24 */ 24 */
25 struct i2c_smbus_alert_setup { 25 struct i2c_smbus_alert_setup {
26 int irq; 26 int irq;
27 }; 27 };
28 28
29 struct i2c_client *i2c_new_smbus_alert_device( 29 struct i2c_client *i2c_new_smbus_alert_device(struct i2c_adapter *adapter,
30 30 struct i2c_smbus_alert_setup *setup);
31 int i2c_handle_smbus_alert(struct i2c_client * 31 int i2c_handle_smbus_alert(struct i2c_client *ara);
32 32
33 #if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED !! 33 #if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_OF)
34 struct i2c_client *i2c_new_slave_host_notify_d !! 34 int of_i2c_setup_smbus_alert(struct i2c_adapter *adap);
35 void i2c_free_slave_host_notify_device(struct <<
36 #else 35 #else
37 static inline struct i2c_client *i2c_new_slave !! 36 static inline int of_i2c_setup_smbus_alert(struct i2c_adapter *adap)
38 { <<
39 return ERR_PTR(-ENOSYS); <<
40 } <<
41 static inline void i2c_free_slave_host_notify_ <<
42 { 37 {
>> 38 return 0;
43 } 39 }
44 #endif 40 #endif
45 41
46 #if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED 42 #if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_DMI)
47 void i2c_register_spd(struct i2c_adapter *adap 43 void i2c_register_spd(struct i2c_adapter *adap);
48 #else 44 #else
49 static inline void i2c_register_spd(struct i2c 45 static inline void i2c_register_spd(struct i2c_adapter *adap) { }
50 #endif 46 #endif
51 47
52 #endif /* _LINUX_I2C_SMBUS_H */ 48 #endif /* _LINUX_I2C_SMBUS_H */
53 49
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