From: Richard Cochran <richardcochran@gmail.com>
To: Min Li <lnimi@hotmail.com>
Cc: lee@kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, Min Li <min.li.xe@renesas.com>
Subject: Re: [PATCH net-next v6 1/2] ptp: introduce PTP_CLOCK_EXTOFF event for the measured external offset
Date: Thu, 4 Jan 2024 17:49:45 -0800 [thread overview]
Message-ID: <ZZdgOUmn2fzHMZwC@hoboy.vegasvil.org> (raw)
In-Reply-To: <PH7PR03MB7064CD80AD7DA745B3F6790FA0672@PH7PR03MB7064.namprd03.prod.outlook.com>
On Thu, Jan 04, 2024 at 12:12:11PM -0500, Min Li wrote:
> From: Min Li <min.li.xe@renesas.com>
>
> This change is for the PHC devices that can measure the phase offset
> between PHC signal and the external signal, such as the 1PPS signal of
> GNSS. Reporting PTP_CLOCK_EXTOFF to user space will be piggy-backed to
> the existing ptp_extts_event so that application such as ts2phc can
> poll the external offset the same way as extts. Hence, ts2phc can use
> the offset to achieve the alignment between PHC and the external signal
> by the help of either SW or HW filters.
>
> Signed-off-by: Min Li <min.li.xe@renesas.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
prev parent reply other threads:[~2024-01-05 1:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-04 17:12 Min Li
2024-01-05 1:49 ` Richard Cochran [this message]
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