| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * PTP hardware clock driver for the FemtoClock3 family of timing and | |
| * synchronization devices. | |
| * | |
| * Copyright (C) 2023 Integrated Device Technology, Inc., a Renesas Company. | |
| */ | |
| #ifndef PTP_IDTFC3_H | |
| #define PTP_IDTFC3_H | |
| #include <linux/ktime.h> | |
| #include <linux/ptp_clock.h> | |
| #include <linux/regmap.h> | |
| #define FW_FILENAME "idtfc3.bin" | |
| #define MAX_FFO_PPB (244000) | |
| #define TDC_GET_PERIOD (10) | |
| struct idtfc3 { | |
| struct ptp_clock_info caps; | |
| struct ptp_clock *ptp_clock; | |
| struct device *dev; | |
| /* Mutex to protect operations from being interrupted */ | |
| struct mutex *lock; | |
| struct device *mfd; | |
| struct regmap *regmap; | |
| struct idtfc3_hw_param hw_param; | |
| u32 sub_sync_count; | |
| u32 ns_per_sync; | |
| int tdc_offset_sign; | |
| u64 tdc_apll_freq; | |
| u32 time_ref_freq; | |
| u16 fod_n; | |
| u8 lpf_mode; | |
| /* Time counter */ | |
| u32 last_counter; | |
| s64 ns; | |
| u32 ns_per_counter; | |
| u32 tc_update_period; | |
| u32 tc_write_timeout; | |
| s64 tod_write_overhead; | |
| }; | |
| #endif /* PTP_IDTFC3_H */ |