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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> |
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| .. | ||
| altera_pio.txt | ||
| gpio-msm.txt | ||
| gpio-pcf857x.txt | ||
| gpio-samsung.txt | ||
| gpio.txt | ||
| intel,x86-broadwell-pinctrl.txt | ||
| intel,x86-pinctrl.txt | ||
| nvidia,tegra20-gpio.txt | ||
| nvidia,tegra186-gpio.txt | ||
| pm8916_gpio.txt | ||