[PATCH v3 1/1] pinctrl: at91: Add set_multiple GPIO chip feature
linus.walleij at linaro.org
Tue May 5 08:16:49 PDT 2015
On Thu, Apr 2, 2015 at 11:55 AM, 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
> Signed-off-by: Alexander Stein <alexanders83 at web.de>
> I Just realized that some implementations have less than 32 pins. Thus
> BITS_MASK(chip->ngpio) as suggested by Jean-Christophe is actually required.
> I missed that, sorry for the noise.
> Changes in v3:
> * As not all GPIO controllers have 32 pins take ngpio into account
> Mask the set- and clear-mask to the supported GPIO pins
No more comments on v3 so patch applied for v4.2.
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