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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * PTP hardware clock driver for the FemtoClock3 family of timing and4 * synchronization devices.5 *6 * Copyright (C) 2023 Integrated Device Technology, Inc., a Renesas Company.7 */8#ifndef PTP_IDTFC3_H9#define PTP_IDTFC3_H10 11#include <linux/ktime.h>12#include <linux/ptp_clock.h>13#include <linux/regmap.h>14 15#define FW_FILENAME "idtfc3.bin"16 17#define MAX_FFO_PPB (244000)18#define TDC_GET_PERIOD (10)19 20struct idtfc3 {21 struct ptp_clock_info caps;22 struct ptp_clock *ptp_clock;23 struct device *dev;24 /* Mutex to protect operations from being interrupted */25 struct mutex *lock;26 struct device *mfd;27 struct regmap *regmap;28 struct idtfc3_hw_param hw_param;29 u32 sub_sync_count;30 u32 ns_per_sync;31 int tdc_offset_sign;32 u64 tdc_apll_freq;33 u32 time_ref_freq;34 u16 fod_n;35 u8 lpf_mode;36 /* Time counter */37 u32 last_counter;38 s64 ns;39 u32 ns_per_counter;40 u32 tc_update_period;41 u32 tc_write_timeout;42 s64 tod_write_overhead;43};44 45#endif /* PTP_IDTFC3_H */46