linux-kernel - Re: [PATCH v6 3/3] mmc: Add driver for LiteX's LiteSDCard interface

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Date:   Fri, 7 Jan 2022 19:12:43 +0900
From:   Stafford Horne <shorne@...il.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     "Gabriel L. Somlo" <gsomlo@...il.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        Karol Gugala <kgugala@...micro.com>,
        Mateusz Holenko <mholenko@...micro.com>,
        Kamil Rakoczy <krakoczy@...micro.com>,
        mdudek@...ernships.antmicro.com,
        Paul Mackerras <paulus@...abs.org>,
        Joel Stanley <joel@....id.au>, david.abdurachmanov@...ive.com,
        Florent Kermarrec <florent@...oy-digital.fr>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: [PATCH v6 3/3] mmc: Add driver for LiteX's LiteSDCard interface

On Fri, Jan 07, 2022 at 10:36:12AM +0100, Geert Uytterhoeven wrote:
> Hi Gabriel,
> 
> On Thu, Jan 6, 2022 at 11:50 PM Gabriel L. Somlo <gsomlo@...il.com> wrote:
> > On Thu, Jan 06, 2022 at 08:19:39PM +0200, Andy Shevchenko wrote:
> > > On Thu, Jan 6, 2022 at 7:48 PM Gabriel Somlo <gsomlo@...il.com> wrote:
> > > >
> > > > LiteX (https://github.com/enjoy-digital/litex) is a SoC framework
> > > > that targets FPGAs. LiteSDCard is a small footprint, configurable
> > > > SDCard core commonly used in LiteX designs.
> > > >
> > > > The driver was first written in May 2020 and has been maintained
> > > > cooperatively by the LiteX community. Thanks to all contributors!
> > >
> > > > +config MMC_LITEX
> > > > +       tristate "LiteX MMC Host Controller support"
> > > > +       depends on OF
> > > > +       depends on PPC_MICROWATT || LITEX || COMPILE_TEST
> > > > +       help
> > > > +         This selects support for the MMC Host Controller found in LiteX SoCs.
> > > > +
> > > > +         If unsure, say N.
> > >
> > > What would be the module name if built as a module?
> >
> > litex_mmc.ko -- why are you asking? I.e., should I mention that anywhere
> > in the Kconfig blurb (I don't see other blurbs doing that, fwiw)?
> 
> Many (most?) blurbs do mention the module name.

I was doubting this as well, but I searched and its true.  The text 'module will
be called' shows up many times, there is also different text.

 $ grep -r 'module will be called' drivers/ | wc
   1347    9023   9086

 $ grep -r 'tristate \"' drivers/ | wc
   7169   47486  521795

So maybe >10% have module name in the blurb.  Example:

          To compile this driver as a module, choose M here: the
          module will be called tifm_sd.

Thanks,

-Stafford