[PATCH 1/2] pinctrl: at91: Add set_multiple GPIO chip feature

[Linus Walleij]

On Fri, Mar 20, 2015 at 8:12 PM, Alexander Stein <alexanders83 at web.de> wrote:

> This adds the callback for set_multiple.
> As this controller has a separate set and clear register, we can't write
> directly to PIO_ODSR as this would required a cached variable and would
> race with at91_gpio_set.
> So build masks for the PIO_SODR and PIO_CODR registers and write them
> together.
>
> Signed-off-by: Alexander Stein <alexanders83 at web.de>
> ---
> This was tested by using an own test driver which uses
> gpiod_set_array_cansleep to set multiple GPIOs at once.

I remember J-C brought this up ages ago, so I hope he will be delighted
to see we can now, FINALLY, do this!

J-C can I have your review on this?

Yours,
Linus Walleij