linux-kernel - Re: [PATCH net-next v2 00/14] net: dsa: add support for MT7988

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Message-ID: <53d89480-936d-25b1-6422-cda7769de369@arinc9.com>
Date:   Mon, 3 Apr 2023 20:08:19 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Daniel Golle <daniel@...rotopia.org>, devicetree@...r.kernel.org,
        netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Russell King <linux@...linux.org.uk>
Cc:     Sam Shih <Sam.Shih@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        John Crispin <john@...ozen.org>, Felix Fietkau <nbd@....name>
Subject: Re: [PATCH net-next v2 00/14] net: dsa: add support for MT7988

On 3.04.2023 04:16, Daniel Golle wrote:
> The MediaTek MT7988 SoC comes with a built-in switch very similar to
> previous MT7530 and MT7531. However, the switch address space is mapped
> into the SoCs memory space rather than being connected via MDIO.
> Using MMIO simplifies register access and also removes the need for a bus
> lock, and for that reason also makes interrupt handling more light-weight.
> 
> Note that this is different from previous SoCs like MT7621 and MT7623N
> which also came with an integrated MT7530-like switch which yet had to be
> accessed via MDIO.
> 
> Split-off the part of the driver registering an MDIO driver, then add
> another module acting as MMIO/platform driver.
> 
> The whole series has been tested on various MediaTek boards:
>   * MT7623A + MT7530 (BPi-R2)
>   * MT7986A + MT7531 (BPi-R3)
>   * MT7988A reference board

You did not address the incorrect information I pointed out here. Now 
that the patch series is applied, people reading this on the merge 
branch commit will be misled by the misinformation.

> 
> Changes since v1:
>   * use 'internal' PHY mode where appropriate
>   * use regmap_update_bits in mt7530_rmw
>   * improve dt-bindings

As a maintainer of the said dt-bindings, I pointed out almost 7 things 
for you to change. Of those 7 points, you only did one, a trivial 
grammar change. The patch series is applied now so one of us maintainers 
(you are one too now) need to fix it with additional patches.

Arınç