[PATCH 1/3] gpio: 74x164: Add support for the daisy-chaining

Linus Walleij linus.walleij at linaro.org
Tue Sep 11 13:05:58 EDT 2012

On Mon, Sep 10, 2012 at 10:35 PM, Maxime Ripard
<maxime.ripard at free-electrons.com> wrote:

> The shift registers have an output pin that, when enabled, propagates
> the values of its internal register to the pins. If another value comes
> to the register while the output pin is disabled, this new value will
> makae the older shift into the next register in the chain.
> This patch adds support for daisy-chaining the registers, using the
> regular SPI chip select mechanism to manage the output pin, and the
> registers-number dt property to set the number of chained registers.
> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>

OK cool, but I just realized that this driver was added just two
years ago by Gabor and Miguel, so I'd like to get their feedback
before continuing.

I know I already merged the DT support and stuff, but better
late than never.

Please include them on future postings of patches to this
driver... (See To: line)

Miguel, Gabor: please look at this, I hope you can get hold
of the patches. Please also check the stuff I've already merged

Linus Walleij

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