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/* 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 */
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