linux-kernel - Re: [PATCH v4 08/12] gpio: add ti-ssp gpio driver

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Message-ID: <129498.93810.qm@web180302.mail.gq1.yahoo.com>
Date:	Wed, 3 Nov 2010 05:35:54 -0700 (PDT)
From:	David Brownell <david-b@...bell.net>
To:	Linus Walleij <linus.ml.walleij@...il.com>
Cc:	davinci-linux-open-source@...ux.davincidsp.com,
	broonie@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org,
	rpurdie@...ys.net, Cyril Chemparathy <cyril@...com>,
	spi-devel-general@...ts.sourceforge.net,
	linux-arm-kernel@...ts.infradead.org, lrg@...mlogic.co.uk
Subject: Re: [PATCH v4 08/12] gpio: add ti-ssp gpio driver



--- On Wed, 11/3/10, Linus Walleij <linus.ml.walleij@...il.com> wrote:
\
> Date: Wednesday, November 3, 2010, 3:18 AM
> 2010/11/3 David Brownell <david-b@...bell.net>:
> 
> > That seems like
> > a better structure for various vendors' "SSP"
> > hardware (multifunction serial interface logic)
> 
> Incidentally the ARM PrimeCell PL022 is called SSP,
> "Synchronous Serial Port" and is not multifunction at all.

ISTR coming across that IP module; are you sure
that it only supports a single serial protocol,
instead of just a "small" variety" (multi)?
Unless the hardware only supports one protocol,
my point holds.

I wasn't implying that modules named SSP have
more in common than tending to support
more than a single serial protocol.  If they
only support one, they get names like"USART"
or sometimes CODEC.

- Dave

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