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gpio: Add a Gateworks PLD GPIO driver

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This adds a driver for Gateworks PLD GPIO, that exist in
two instances on the Gateworks Cambria GW2358-4 router
platform at least.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij
2019-02-01 21:41:31 +01:00
parent 35b21b6ef8
commit 2a0b0a57fa
3 changed files with 145 additions and 0 deletions
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7
drivers/gpio/Kconfig
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@@ -831,6 +831,13 @@ config GPIO_ADNP
enough to represent all pins, but the driver will assume a
register layout for 64 pins (8 registers).
config GPIO_GW_PLD
tristate "Gateworks PLD GPIO Expander"
depends on OF_GPIO
help
Say yes here to provide access to the Gateworks I2C PLD GPIO
Expander. This is used at least on the Cambria GW2358-4.
config GPIO_MAX7300
tristate "Maxim MAX7300 GPIO expander"
select GPIO_MAX730X