linux-kernel - Re: [PATCH v11 net-next 9/9] mfd: ocelot: add support for the vsc7512 chip via spi

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Message-ID: <20220628202422.GF855398@euler>
Date:   Tue, 28 Jun 2022 13:24:22 -0700
From:   Colin Foster <colin.foster@...advantage.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-gpio@...r.kernel.org,
        Vladimir Oltean <vladimir.oltean@....com>,
        Lee Jones <lee.jones@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        UNGLinuxDriver@...rochip.com,
        Linus Walleij <linus.walleij@...aro.org>,
        Wolfram Sang <wsa@...nel.org>,
        Terry Bowman <terry.bowman@....com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: Re: [PATCH v11 net-next 9/9] mfd: ocelot: add support for the
 vsc7512 chip via spi

On Tue, Jun 28, 2022 at 01:07:51PM -0700, Randy Dunlap wrote:
> 
> 
> On 6/28/22 01:17, Colin Foster wrote:
> > --- a/drivers/mfd/Kconfig
> > +++ b/drivers/mfd/Kconfig
> > @@ -962,6 +962,24 @@ config MFD_MENF21BMC
> >  	  This driver can also be built as a module. If so the module
> >  	  will be called menf21bmc.
> >  
> > +config MFD_OCELOT
> > +	bool "Microsemi Ocelot External Control Support"
> > +	depends on SPI_MASTER
> > +	select MFD_CORE
> > +	select REGMAP_SPI
> > +	help
> > +	  Ocelot is a family of networking chips that support multiple ethernet
> > +	  and fibre interfaces. In addition to networking, they contain several
> > +	  other functions, including pictrl, MDIO, and communication with
> 
> 	Is that                      pinctrl,
> ?

Yep. Good catch. Thanks!

> 
> > +	  external chips. While some chips have an internal processor capable of
> > +	  running an OS, others don't. All chips can be controlled externally
> > +	  through different interfaces, including SPI, I2C, and PCIe.
> > +
> > +	  Say yes here to add support for Ocelot chips (VSC7511, VSC7512,
> > +	  VSC7513, VSC7514) controlled externally.
> > +
> > +	  If unsure, say N.
> 
> -- 
> ~Randy