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authorRussell King <rmk+kernel@armlinux.org.uk>2016-08-31 08:49:44 +0100
committerLinus Walleij <linus.walleij@linaro.org>2017-03-24 14:04:46 +0100
commit380639c7cc786ec663e43eb3896ccf9172a46900 (patch)
treeb51574a49f52ff542c8c915a582450ac06de68b8 /drivers/gpio/Makefile
parentc65d1fd350fa28de79e86e18ef73b902a67c791a (diff)
gpio: add generic single-register fixed-direction GPIO driver
Add a simple, generic, single register fixed-direction GPIO driver. This is able to support a single register with a mixture of inputs and outputs. This is different from gpio-mmio and gpio-74xx-mmio: * gpio-mmio doesn't allow a fixed direction, it assumes there is always a direction register. * gpio-74xx-mmio only supports all-in or all-out setups * gpio-74xx-mmio is DT only, this needs to support legacy too * they don't double-read when getting the GPIO value, as required by some implementations that this driver supports * we need to always do 32-bit reads, which bgpio doesn't guarantee * the current output state may not be readable from the hardware register - reading may reflect input status but not output status. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/Makefile')
-rw-r--r--drivers/gpio/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index bd995dc2a84a..095598e856ca 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -98,6 +98,7 @@ obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o
obj-$(CONFIG_GPIO_RC5T583) += gpio-rc5t583.o
obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o
obj-$(CONFIG_GPIO_RCAR) += gpio-rcar.o
+obj-$(CONFIG_GPIO_REG) += gpio-reg.o
obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o
obj-$(CONFIG_GPIO_SCH) += gpio-sch.o
obj-$(CONFIG_GPIO_SCH311X) += gpio-sch311x.o