Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
46 lines
1022 B
C
46 lines
1022 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* PTP hardware clock driver for the FemtoClock3 family of timing and
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* synchronization devices.
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*
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* Copyright (C) 2023 Integrated Device Technology, Inc., a Renesas Company.
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*/
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#ifndef PTP_IDTFC3_H
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#define PTP_IDTFC3_H
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#include <linux/ktime.h>
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#include <linux/ptp_clock.h>
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#include <linux/regmap.h>
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#define FW_FILENAME "idtfc3.bin"
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#define MAX_FFO_PPB (244000)
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#define TDC_GET_PERIOD (10)
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struct idtfc3 {
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struct ptp_clock_info caps;
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struct ptp_clock *ptp_clock;
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struct device *dev;
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/* Mutex to protect operations from being interrupted */
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struct mutex *lock;
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struct device *mfd;
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struct regmap *regmap;
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struct idtfc3_hw_param hw_param;
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u32 sub_sync_count;
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u32 ns_per_sync;
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int tdc_offset_sign;
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u64 tdc_apll_freq;
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u32 time_ref_freq;
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u16 fod_n;
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u8 lpf_mode;
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/* Time counter */
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u32 last_counter;
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s64 ns;
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u32 ns_per_counter;
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u32 tc_update_period;
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u32 tc_write_timeout;
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s64 tod_write_overhead;
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};
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#endif /* PTP_IDTFC3_H */
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