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authorWilliam Breathitt Gray <vilhelm.gray@gmail.com>2018-03-22 14:00:00 +0100
committerLinus Walleij <linus.walleij@linaro.org>2018-03-26 10:24:55 +0200
commitca37081595a2fa1d67c962d416392d36ae8d05ad (patch)
treea0ceffbfacf61076bc33c1830fbea1979e48aeb4 /drivers/gpio/gpio-104-dio-48e.c
parentgpio: pci-idio-16: Implement get_multiple callback (diff)
downloadlinux-ca37081595a2fa1d67c962d416392d36ae8d05ad.tar.xz
linux-ca37081595a2fa1d67c962d416392d36ae8d05ad.zip
gpio: pcie-idio-24: Implement get_multiple/set_multiple callbacks
The ACCES I/O PCIe-IDIO-24 series of devices provides 24 optically-isolated digital I/O accessed via six 8-bit ports. Since eight input lines are acquired on a single port input read -- and similarly eight output lines are set on a single port output write -- the PCIe-IDIO-24 GPIO driver may improve multiple I/O reads/writes by utilizing a get_multiple/set_multiple callbacks. This patch implements the idio_24_gpio_get_multiple function which serves as the respective get_multiple callback, and implements the idio_24_gpio_set_multiple function which serves as the respective set_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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