linux-kernel - Re: [PATCH v3 1/5] dt-bindings: net: dwmac-meson: use picoseconds for the RGMII RX delay

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Date:   Mon, 28 Dec 2020 13:06:55 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-amlogic@...ts.infradead.org, devicetree@...r.kernel.org,
        netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, robh+dt@...nel.org,
        andrew@...n.ch, jianxin.pan@...ogic.com, narmstrong@...libre.com,
        khilman@...libre.com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, jbrunet@...libre.com
Subject: Re: [PATCH v3 1/5] dt-bindings: net: dwmac-meson: use picoseconds for
 the RGMII RX delay



On 12/23/2020 3:29 PM, Martin Blumenstingl wrote:
> Amlogic Meson G12A, G12B and SM1 SoCs have a more advanced RGMII RX
> delay register which allows picoseconds precision. Deprecate the old
> "amlogic,rx-delay-ns" in favour of the generic "rx-internal-delay-ps"
> property.
> 
> For older SoCs the only known supported values were 0ns and 2ns. The new
> SoCs have support for RGMII RX delays between 0ps and 3000ps in 200ps
> steps.
> 
> Don't carry over the description for the "rx-internal-delay-ps" property
> and inherit that from ethernet-controller.yaml instead.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

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