text: /* SPDX-License-Identifier: GPL-2.0-or-later */
  /*
   * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
  
   */
  #ifndef __VIA_I2C_H__
  #define __VIA_I2C_H__
  
  #include <linux/i2c.h>
  #include <linux/i2c-algo-bit.h>
  
  struct via_i2c_stuff {
  	u16 i2c_port;			/* GPIO or I2C port */
  	u16 is_active;			/* Being used as I2C? */
  	struct i2c_adapter adapter;
  	struct i2c_algo_bit_data algo;
  };
  
  
  int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata);
  int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data);
  int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len);
  struct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which);
  
  extern int viafb_i2c_init(void);
  extern void viafb_i2c_exit(void);
  #endif /* __VIA_I2C_H__ */
  