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Date:   Wed, 4 Jan 2023 16:08:52 +0200
From:   Vladimir Oltean <olteanv@gmail.com>
To:     Arun Ramadoss <arun.ramadoss@microchip.com>
Cc:     linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        woojung.huh@microchip.com, UNGLinuxDriver@microchip.com,
        andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com,
        davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com, linux@armlinux.org.uk,
        Tristram.Ha@microchip.com, richardcochran@gmail.com,
        ceggers@arri.de
Subject: Re: [Patch net-next v7 04/13] net: dsa: microchip: ptp: manipulating
 absolute time using ptp hw clock
Message-ID: <20230104140852.udslp3zjwfgbpq3i@skbuf>
References: <20230104084316.4281-1-arun.ramadoss@microchip.com>
 <20230104084316.4281-1-arun.ramadoss@microchip.com>
 <20230104084316.4281-5-arun.ramadoss@microchip.com>
 <20230104084316.4281-5-arun.ramadoss@microchip.com>
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On Wed, Jan 04, 2023 at 02:13:07PM +0530, Arun Ramadoss wrote:
> From: Christian Eggers <ceggers@arri.de>
> 
> This patch is used for reconstructing the absolute time from the 32bit
> hardware time stamping value. The do_aux ioctl is used for reading the
> ptp hardware clock and store it to global variable.
> The timestamped value in tail tag during rx and register during tx are
> 32 bit value (2 bit seconds and 30 bit nanoseconds). The time taken to
> read entire ptp clock will be time consuming. In order to speed up, the
> software clock is maintained. This clock time will be added to 32 bit
> timestamp to get the absolute time stamp.
> 
> Signed-off-by: Christian Eggers <ceggers@arri.de>
> Co-developed-by: Arun Ramadoss <arun.ramadoss@microchip.com>
> Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
> ---

Reviewed-by: Vladimir Oltean <olteanv@gmail.com>