linux-kernel - Re: [PATCH RFC v2 3/5] net: stmmac: dwmac-meson8b: use picoseconds for the RGMII RX delay

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Message-ID: <88c043ba-e7a4-6b4d-f93f-efdf6c525e95@gmail.com>
Date:   Tue, 17 Nov 2020 10:36:00 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        davem@...emloft.net, kuba@...nel.org,
        linux-amlogic@...ts.infradead.org, devicetree@...r.kernel.org,
        robh+dt@...nel.org, netdev@...r.kernel.org
Cc:     jianxin.pan@...ogic.com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, khilman@...libre.com,
        narmstrong@...libre.com, jbrunet@...libre.com, andrew@...n.ch
Subject: Re: [PATCH RFC v2 3/5] net: stmmac: dwmac-meson8b: use picoseconds
 for the RGMII RX delay

On 11/15/20 10:52 AM, Martin Blumenstingl wrote:
> Amlogic Meson G12A, G12B and SM1 SoCs have a more advanced RGMII RX
> delay register which allows picoseconds precision. Parse the new
> "amlogic,rgmii-rx-delay-ps" property or fall back to the old
> "amlogic,rx-delay-ns".
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>

Maybe also issue a warning when the 'amlogic,rx-delay-ns' property is
found in addition to the 'amlogic,rgmii-rx-delay-ps'? Up to you how to
manage existing DTBs being deployed.
-- 
Florian