[PATCH 5/7] gpio: 74x164: Add support for the daisy-chaining
linus.walleij at linaro.org
Fri Sep 7 17:07:33 EDT 2012
On Fri, Sep 7, 2012 at 2:18 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>
I'm stalling 5 thru 7 waiting for Florians comments to be addressed.
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