gpio: pci-idio-16: Implement get_multiple callback

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The ACCES I/O PCI-IDIO-16 series of devices provides 16
optically-isolated digital inputs accessed via two 8-bit ports. Since
eight input lines are acquired on a single port input read, the
PCI-IDIO-16 GPIO driver may improve multiple input reads by utilizing a
get_multiple callback. This patch implements the
idio_16_gpio_get_multiple function which serves as the respective
get_multiple callback.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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William Breathitt Gray 2018-03-22 08:59:48 -04:00 • committed by Linus Walleij

parent 15f59cfff9

commit 810ebfc5ef

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drivers/gpio/gpio-pci-idio-16.c

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