linux-kernel - Re: [PATCH 2/2] eeprom: ee1004: Deal with nack on page selection

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Message-ID: <CAN39uTpQj=ebjhydX2LnukkMAS-_Qi-nBMsUCjE4J-B_4HN8LQ@mail.gmail.com>
Date:   Mon, 6 May 2019 15:30:26 +0100
From:   Dreamcat4 <dreamcat4@...il.com>
To:     Jarkko Nikula <jarkko.nikula@...ux.intel.com>
Cc:     Jean Delvare <jdelvare@...e.de>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux I2C <linux-i2c@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 2/2] eeprom: ee1004: Deal with nack on page selection

Don't mind either way, please do as you see fit

On Mon, May 6, 2019 at 3:04 PM Jarkko Nikula
<jarkko.nikula@...ux.intel.com> wrote:
>
> On 5/6/19 4:16 PM, Jean Delvare wrote:
> > Some EE1004 implementations will not properly ack page selection
> > commands. They still set the page correctly, so there is no actual
> > error. Deal with this case gracefully by checking the currently
> > selected page after we receive a nack. If the page is set right then
> > we can continue.
> >
> > Signed-off-by: Jean Delvare <jdelvare@...e.de>
> > Tested-by: Jarkko Nikula <jarkko.nikula@...ux.intel.com>
> > Cc: Arnd Bergmann <arnd@...db.de>
> > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > ---
> >   drivers/misc/eeprom/ee1004.c |   12 +++++++++++-
> >   1 file changed, 11 insertions(+), 1 deletion(-)
> >
> Does Dreamcat4 deserve reported and tested by tags here? I guess
> anonymous address is fine with those tags?
>
> (I re-tested these two patches on top of v5.1 and they make decode-dimms
> working on a machine with 2-4 * Crucial DD4 dimms)
>
> --
> Jarkko