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

Linus Walleij linus.walleij at linaro.org
Tue Sep 11 17:51:04 EDT 2012

On Tue, Sep 11, 2012 at 7:05 PM, Linus Walleij <linus.walleij at linaro.org> wrote:
> 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.

Tentatively applied waiting for feedback from Miguel...

Linus Walleij

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