linux-kernel - Re: [PATCH net-next v9 00/16] add support for Renesas RZ/N1 ethernet subsystem devices

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Message-ID: <20220627093815.25ba1bb6@fixe.home>
Date:   Mon, 27 Jun 2022 09:38:15 +0200
From:   Clément Léger <clement.leger@...tlin.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Herve Codina <herve.codina@...tlin.com>,
        Miquèl Raynal <miquel.raynal@...tlin.com>,
        Milan Stevanovic <milan.stevanovic@...com>,
        Jimmy Lalande <jimmy.lalande@...com>,
        Pascal Eberhard <pascal.eberhard@...com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v9 00/16] add support for Renesas RZ/N1
 ethernet subsystem devices

Le Sat, 25 Jun 2022 00:43:30 +0300,
Vladimir Oltean <olteanv@...il.com> a écrit :

> On Fri, Jun 24, 2022 at 04:39:45PM +0200, Clément Léger wrote:
> > The Renesas RZ/N1 SoCs features an ethernet subsystem which contains
> > (most notably) a switch, two GMACs, and a MII converter [1]. This
> > series adds support for the switch and the MII converter.
> > 
> > The MII converter present on this SoC has been represented as a PCS
> > which sit between the MACs and the PHY. This PCS driver is probed from
> > the device-tree since it requires to be configured. Indeed the MII
> > converter also contains the registers that are handling the muxing of
> > ports (Switch, MAC, HSR, RTOS, etc) internally to the SoC.
> > 
> > The switch driver is based on DSA and exposes 4 ports + 1 CPU
> > management port. It include basic bridging support as well as FDB and
> > statistics support.
> > 
> > Link: [1] https://www.renesas.com/us/en/document/mah/rzn1d-group-rzn1s-group-rzn1l-group-users-manual-r-engine-and-ethernet-peripherals
> > 
> > -----
> > Changes in V9:
> > - Cover letter:
> >   - Remove comment about RZN1 patches that are now in the master branch.
> > - Commits:
> >   - Add Vladimir Oltean Reviewed-by
> > - PCS:
> >   - Add "Depends on OF" for PCS_RZN1_MIIC due to error found by intel
> >     kernel test robot <lkp@...el.com>.
> >   - Check return value of of_property_read_u32() for
> >     "renesas,miic-switch-portin" property before setting conf.
> >   - Return miic_parse_dt() return value in miic_probe() on error
> > - Switch:
> >   - Add "Depends on OF" for NET_DSA_RZN1_A5PSW due to errors found by
> >     intel kernel test robot <lkp@...el.com>.
> > - DT:
> >   - Add spaces between switch port and '{'  
> 
> I took one more look through the series and this looks good, thanks.

Hi Vladimir,

Thanks for the review.

Clément

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



-- 
Clément Léger,
Embedded Linux and Kernel engineer at Bootlin
https://bootlin.com