linux-kernel - Re: [PATCH net 2/3] net: phy: micrel: Remove latency from driver

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Message-ID: <YkcGsiEmnk9sKjEj@lunn.ch>
Date:   Fri, 1 Apr 2022 16:05:38 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     "Allan W. Nielsen" <allan.nielsen@...rochip.com>
Cc:     Horatiu Vultur <horatiu.vultur@...rochip.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, hkallweit1@...il.com,
        linux@...linux.org.uk, Divya.Koppera@...rochip.com,
        davem@...emloft.net, kuba@...nel.org, richardcochran@...il.com,
        UNGLinuxDriver@...rochip.com
Subject: Re: [PATCH net 2/3] net: phy: micrel: Remove latency from driver

> I would like to keep the default values. With default values, you can
> get PTP working (accuracy is not great - but it is much better than
> if set to zero).
> 
> There is no risk of bootloaders to pre-load other values, as the kernel
> will reset the PHY, and after reset we will be back to these numbers.

O.K, that is what i wanted to know. It should be reasonable safe to
assume these values, and userspace daemons can apply whatever
correction they want, assuming this is what the hardware is doing.

       Andrew