| 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 |