u-boot/doc/device-tree-bindings/gpio
Vignesh R 5746b0df9c gpio: Add driver for TI PCF8575 I2C GPIO expander
TI's PCF8575 is a 16-bit I2C GPIO expander.The device features a
16-bit quasi-bidirectional I/O ports. Each quasi-bidirectional I/O can
be used as an input or output without the use of a data-direction
control signal. The I/Os should be high before being used as inputs.
Read the device documentation for more details[1].

This driver is based on pcf857x driver available in Linux v4.7 kernel.
It supports basic reading and writing of gpio pins.

[1] http://www.ti.com/lit/ds/symlink/pcf8575.pdf

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
2016-08-08 13:32:53 -04:00
..
altera_pio.txt nios2 : convert altera_pio to driver model 2015-10-23 07:37:03 +08:00
gpio-msm.txt gpio: Add support for Qualcomm gpio controller 2016-04-01 17:18:07 -04:00
gpio-pcf857x.txt gpio: Add driver for TI PCF8575 I2C GPIO expander 2016-08-08 13:32:53 -04:00
gpio-samsung.txt dm: exynos: Bring in GPIO device tree binding 2015-01-29 17:09:50 -07:00
gpio.txt Documentation: gpio: fix bindings document 2015-02-19 06:19:19 -07:00
intel,x86-broadwell-pinctrl.txt x86: broadwell: Add a pinctrl driver 2016-03-17 10:27:26 +08:00
intel,x86-pinctrl.txt x86: Update x86-pinctrl driver device-tree-bindings doc 2016-06-12 12:19:35 +08:00
nvidia,tegra20-gpio.txt dm: tegra: Bring in GPIO device tree binding 2015-01-29 17:09:50 -07:00
nvidia,tegra186-gpio.txt gpio: add Tegra186 GPIO driver 2016-05-31 09:54:24 -07:00
pm8916_gpio.txt gpio: Add support for Qualcomm PM8916 gpios 2016-04-01 17:18:13 -04:00