1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright (C) IBM Corporation 2023 */ 3 4 #ifndef DRIVERS_FSI_MASTER_I2CR_H 5 #define DRIVERS_FSI_MASTER_I2CR_H 6 7 #include <linux/i2c.h> 8 #include <linux/mutex.h> 9 10 #include "fsi-master.h" 11 12 struct i2c_client; 13 14 struct fsi_master_i2cr { 15 struct fsi_master master; 16 struct mutex lock; /* protect HW access */ 17 struct i2c_client *client; 18 }; 19 20 #define to_fsi_master_i2cr(m) container_of(m, struct fsi_master_i2cr, master) 21 22 int fsi_master_i2cr_read(struct fsi_master_i2cr *i2cr, u32 addr, u64 *data); 23 int fsi_master_i2cr_write(struct fsi_master_i2cr *i2cr, u32 addr, u64 data); 24 25 static inline bool is_fsi_master_i2cr(struct fsi_master *master) 26 { 27 if (master->dev.parent && master->dev.parent->type == &i2c_client_type) 28 return true; 29 30 return false; 31 } 32 33 #endif /* DRIVERS_FSI_MASTER_I2CR_H */ 34