Merge tag 'amd-drm-fixes-5.15-2021-10-21' of https://gitlab.freedesktop.org/agd5f...
[platform/kernel/linux-starfive.git] / include / linux / via_i2c.h
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
4  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
5
6  */
7 #ifndef __VIA_I2C_H__
8 #define __VIA_I2C_H__
9
10 #include <linux/i2c.h>
11 #include <linux/i2c-algo-bit.h>
12
13 struct via_i2c_stuff {
14         u16 i2c_port;                   /* GPIO or I2C port */
15         u16 is_active;                  /* Being used as I2C? */
16         struct i2c_adapter adapter;
17         struct i2c_algo_bit_data algo;
18 };
19
20
21 int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata);
22 int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data);
23 int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len);
24 struct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which);
25
26 extern int viafb_i2c_init(void);
27 extern void viafb_i2c_exit(void);
28 #endif /* __VIA_I2C_H__ */