linux-kernel - Re: [PATCH] eeprom: at25: Convert the driver to the spi-mem interface

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Message-ID: <20190903170850.6aee808b@collabora.com>
Date:   Tue, 3 Sep 2019 17:08:50 +0200
From:   Boris Brezillon <boris.brezillon@...labora.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mark Brown <broonie@...nel.org>,
        linux-spi <linux-spi@...r.kernel.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        MTD Maling List <linux-mtd@...ts.infradead.org>
Subject: Re: [PATCH] eeprom: at25: Convert the driver to the spi-mem
 interface

Hi Geert,

On Tue, 3 Sep 2019 17:06:52 +0200
Geert Uytterhoeven <geert@...ux-m68k.org> wrote:

> On Thu, Apr 25, 2019 at 9:44 PM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> > On Sat, Mar 30, 2019 at 03:16:37PM +0100, Boris Brezillon wrote:  
> > > The AT25 protocol fits pretty well in the spi-mem model. Convert the
> > > at25 spi driver to a spi-mem driver and use the dirmap API instead of
> > > forging SPI messages manually.
> > > This makes the driver compatible with spi-mem-only controllers
> > > (controllers implementing only the spi_mem ops).
> > >
> > > Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> > > Signed-off-by: Boris Brezillon <boris.brezillon@...labora.com>
> > > ---
> > >  drivers/misc/eeprom/at25.c | 282 +++++++++++++++++++++++--------------
> > >  1 file changed, 176 insertions(+), 106 deletions(-)  
> >
> > Will there be a new version of this to fix up the problems that 0-day
> > found in it?  
> 
> gmail-whitespace-damaged fix:
> 
> diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
> index f2abe27010eff133..98145d7d43d0c728 100644
> --- a/drivers/misc/eeprom/Kconfig
> +++ b/drivers/misc/eeprom/Kconfig
> @@ -36,6 +36,7 @@ config EEPROM_AT25
>         depends on SPI && SYSFS
>         select NVMEM
>         select NVMEM_SYSFS
> +       select SPI_MEM
>         help
>           Enable this driver to get read/write support to most SPI EEPROMs,
>           after you configure the board init code to know about each eeprom
> 
> Boris: what's the plan?

Sorry, I don't have time to respin this patch. Feel free to send a new
version if you need it.

Regards,

Boris