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| author | Joel Stanley <joel@jms.id.au> | 2016-08-30 17:24:27 +0930 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-09-07 16:56:47 +0200 |
| commit | 361b79119a4b7f53f728913b5ed2c8d2d10c16f5 (patch) | |
| tree | bb31d4df905d64d1973d3ab9a97bd3ee73d6abc7 /drivers/gpio/Kconfig | |
| parent | 19de85134ee92d927044cc620961a322bfde9119 (diff) | |
| download | linux-stable-361b79119a4b7f53f728913b5ed2c8d2d10c16f5.tar.gz linux-stable-361b79119a4b7f53f728913b5ed2c8d2d10c16f5.tar.bz2 linux-stable-361b79119a4b7f53f728913b5ed2c8d2d10c16f5.zip | |
gpio: Add Aspeed driver
The Aspeed SoCs contain GPIOs banked by letter, where each bank contains
8 pins. The GPIO banks are then grouped in sets of four in the register
layout.
The implementation exposes multiple banks through the one driver and
requests and releases pins via the pinctrl subsystem. The hardware
supports generation of interrupts from all GPIO-capable pins.
A number of hardware features are not yet supported: Configuration of
interrupt direction (ARM or LPC), debouncing, and WDT reset tolerance
for output ports.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 5eb7c864d4a5..17842e6a56dc 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -106,6 +106,13 @@ config GPIO_AMDPT driver for GPIO functionality on Promontory IOHub Require ACPI ASL code to enumerate as a platform device. +config GPIO_ASPEED + tristate "Aspeed GPIO support" + depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO + select GPIOLIB_IRQCHIP + help + Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. + config GPIO_ATH79 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" default y if ATH79 |