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Message-ID: <20231207142904.GE8867@google.com>
Date: Thu, 7 Dec 2023 14:29:04 +0000
From: Lee Jones <lee@...nel.org>
To: Min Li <lnimi@...mail.com>
Cc: richardcochran@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, Min Li <min.li.xe@...esas.com>
Subject: Re: [PATCH net-next v2 2/2] ptp: add FemtoClock3 Wireless as ptp
 hardware clock

On Wed, 29 Nov 2023, Min Li wrote:

> From: Min Li <min.li.xe@...esas.com>
> 
> The RENESAS FemtoClock3 Wireless is a high-performance jitter attenuator,
> frequency translator, and clock synthesizer. The device is comprised of 3
> digital PLLs (DPLL) to track CLKIN inputs and three independent low phase
> noise fractional output dividers (FOD) that output low phase noise clocks.
> 
> FemtoClock3 supports one Time Synchronization (Time Sync) channel to enable
> an external processor to control the phase and frequency of the Time Sync
> channel and to take phase measurements using the TDC. Intended applications
> are synchronization using the precision time protocol (PTP) and
> synchronization with 0.5 Hz and 1 Hz signals from GNSS.
> 
> Signed-off-by: Min Li <min.li.xe@...esas.com>
> ---
>  drivers/ptp/Kconfig                |   12 +
>  drivers/ptp/Makefile               |    1 +
>  drivers/ptp/ptp_fc3.c              | 1036 ++++++++++++++++++++++++++++
>  drivers/ptp/ptp_fc3.h              |   45 ++

>  include/linux/mfd/idtRC38xxx_reg.h |  273 ++++++++

Acked-by: Lee Jones <lee@...nel.org>

>  5 files changed, 1367 insertions(+)
>  create mode 100644 drivers/ptp/ptp_fc3.c
>  create mode 100644 drivers/ptp/ptp_fc3.h
>  create mode 100644 include/linux/mfd/idtRC38xxx_reg.h

-- 
Lee Jones [李琼斯]

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