linux-kernel - Re: [PATCH v2] GPIO: add support for 74HC164 serial-in/parallel-out 8-bit shift register

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Message-ID: <887649.75421.qm@web180316.mail.gq1.yahoo.com>
Date:	Mon, 30 Aug 2010 16:43:04 -0700 (PDT)
From:	David Brownell <david-b@...bell.net>
To:	Willy Tarreau <w@....eu>, Florian Fainelli <florian@...nwrt.org>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Miguel Gaio <miguel.gaio@...xo.com>,
	Juhos Gabor <juhosg@...nwrt.org>,
	dbrownell@...rs.sourceforge.net
Subject: Re: [PATCH v2] GPIO: add support for 74HC164 serial-in/parallel-out 8-bit shift register

generic to all
> 74HC164 chips

Not just HC-series logic, also HCT, AC, etc (as
I noted previously).

I'm glad you took NXP (one of the N vendors)
out of the name, but I think you should also
 take the logic series out; "74x164 might be sufficiently generic.
           
> pdata->gpio_pin_clk, err);

I'm a bit puzzled why you don't just hook the
chip up using standard SPI signals... ISTR they
matched up directly to what the chip needs, so
no GPIOs were needed for interface glue.
>

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