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| author | Emanuele Ghidoli <emanuele.ghidoli@toradex.com> | 2023-03-13 18:09:50 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-03-15 13:49:18 +0100 |
| commit | 03810031c91dfe448cd116ee987d5dc4139006f4 (patch) | |
| tree | d22f48029de80b3c4e723d4066a0358031b534a8 /drivers/gpio/Kconfig | |
| parent | d41116f7e476f5211af77454e9938a87a09a179b (diff) | |
| download | linux-stable-03810031c91dfe448cd116ee987d5dc4139006f4.tar.gz linux-stable-03810031c91dfe448cd116ee987d5dc4139006f4.tar.bz2 linux-stable-03810031c91dfe448cd116ee987d5dc4139006f4.zip | |
gpio: fxl6408: add I2C GPIO expander driver
Add minimal driver for Fairchild FXL6408 8-bit I2C-controlled GPIO expander
using the generic regmap based GPIO driver (GPIO_REGMAP).
The driver implements setting the GPIO direction, reading inputs
and writing outputs.
In addition to that the FXL6408 has the following functionalities:
- allows to monitor input ports for data transitions with an interrupt pin
- all inputs can be configured with pull-up or pull-down resistors
Datasheet: https://www.onsemi.com/download/data-sheet/pdf/fxl6408-d.pdf
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Co-developed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
[Bartosz: order includes alphabetically]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 5ef2bfbd805b..68f58b0ba79f 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1007,6 +1007,16 @@ config GPIO_ADNP enough to represent all pins, but the driver will assume a register layout for 64 pins (8 registers). +config GPIO_FXL6408 + tristate "FXL6408 I2C GPIO expander" + select GPIO_REGMAP + select REGMAP_I2C + help + GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander. + + To compile this driver as a module, choose M here: the module will + be called gpio-fxl6408. + config GPIO_GW_PLD tristate "Gateworks PLD GPIO Expander" depends on OF_GPIO |