linux-kernel - Re: [PATCH 1/2] spi: support inter-word delay requirement for devices

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Message-ID: <CAMuHMdVzstrjbKvNr8mbW_XLH6sYE+Asd=St-bZKt+rKjJhd+g@mail.gmail.com>
Date:   Mon, 28 Jan 2019 12:54:06 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Jonas Bonn <jonas@...rbonn.se>
Cc:     Mark Brown <broonie@...nel.org>,
        Baolin Wang <baolin.wang@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-spi <linux-spi@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        DTML <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/2] spi: support inter-word delay requirement for devices

Hi Jonas,

On Mon, Jan 28, 2019 at 12:51 PM Jonas Bonn <jonas@...rbonn.se> wrote:
> On 28/01/2019 12:47, Mark Brown wrote:
> > On Mon, Jan 28, 2019 at 08:41:05AM +0100, Geert Uytterhoeven wrote:
> >> On Sat, Jan 26, 2019 at 4:40 PM Jonas Bonn <jonas@...rbonn.se> wrote:
> >
> >>> spi-3wire: again, only set by MAXIM DS-1302 which always needs this
> >>> setting; driver could set this
> >
> >> For DS1302, this is probable true.
> >> Some devices may support both 4-wire or 3-wire mode?
> >
> > IIRC yes.
>
> Just for the record, the datasheet says it's exclusively 3-wire.  But
> it's not important...

With "some devices" I meant "some other non-DS1302 devices supporting
3-wire mode". Sorry for being unclear.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds