linux-kernel - Re: [PATCH v4 3/7] mfd: Add base driver for Netronix embedded controller

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Message-ID: <X8ed7stMOGhnZ18T@latitude>
Date:   Wed, 2 Dec 2020 15:00:14 +0100
From:   Jonathan Neuschäfer <j.neuschaefer@....net>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Jonathan Neuschäfer <j.neuschaefer@....net>,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Sam Ravnborg <sam@...nborg.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Heiko Stuebner <heiko.stuebner@...obroma-systems.com>,
        Stephan Gerhold <stephan@...hold.net>,
        Lubomir Rintel <lkundrak@...sk>,
        Mark Brown <broonie@...nel.org>, allen <allen.chen@....com.tw>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, linux-pwm@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Heiko Stuebner <heiko@...ech.de>,
        Josua Mayer <josua.mayer@....eu>,
        Andreas Kemnade <andreas@...nade.info>,
        Arnd Bergmann <arnd@...db.de>, Daniel Palmer <daniel@...f.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: Re: [PATCH v4 3/7] mfd: Add base driver for Netronix embedded
 controller

On Wed, Dec 02, 2020 at 01:05:20PM +0000, Lee Jones wrote:
> On Sun, 22 Nov 2020, Jonathan Neuschäfer wrote:
[...]
> > +	/* Bail out if we encounter an unknown firmware version */
> > +	switch (version) {
> > +	case 0xd726: /* found in Kobo Aura */
> 
> No magic numbers.
> 
> Please submit a subsequent patch to define this.

Will do.

But I don't think I'll be able to give it a more meaningful name than
NTXEC_VERSION_D726. I don't have a good overview of which versions
appear in which devices. "0xd726 found in Kobo Aura" only means that;
I don't know if it's the only version used in the Kobo Aura, and I don't
know if the Kobo Aura is the only device where it is used.


Thanks,
Jonathan Neuschäfer

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