From df6df93c8a73f6f9be38d4128fe25a5ee613d66c Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Mon, 25 Jan 2016 10:37:31 -0600 Subject: gpio: Add driver for SPI serializers Add generic parallel-in/serial-out shift register GPIO driver. This includes SPI compatible devices like SN74165 serial-out shift registers and the SN65HVS88x series of industrial serializers that can be read over the SPI bus and used for GPI (General Purpose Input). Signed-off-by: Andrew F. Davis Tested-by: Sean Nyekjaer Signed-off-by: Linus Walleij --- drivers/gpio/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/gpio/Kconfig') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index f52b25964bc6..d003abeb1756 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1048,6 +1048,12 @@ config GPIO_MC33880 SPI driver for Freescale MC33880 high-side/low-side switch. This provides GPIO interface supporting inputs and outputs. +config GPIO_PISOSR + tristate "Generic parallel-in/serial-out shift register" + help + GPIO driver for SPI compatible parallel-in/serial-out shift + registers. These are input only devices. + endmenu menu "SPI or I2C GPIO expanders" -- cgit v1.2.3