gpio: add Tegra186 GPIO driver
Tegra186's GPIO controller register layout is significantly different from
previous chips, so add a new driver for it. In fact, there are two
different GPIO controllers in Tegra186 that share a similar register
layout, but very different port mapping. This driver covers both.
The DT binding is already present in the Linux kernel (in linux-next via
the Tegra tree so far).
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org> # v1
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index ddec1ef..3c43101 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -31,6 +31,7 @@
obj-$(CONFIG_SANDBOX_GPIO) += sandbox.o
obj-$(CONFIG_SPEAR_GPIO) += spear_gpio.o
obj-$(CONFIG_TEGRA_GPIO) += tegra_gpio.o
+obj-$(CONFIG_TEGRA186_GPIO) += tegra186_gpio.o
obj-$(CONFIG_DA8XX_GPIO) += da8xx_gpio.o
obj-$(CONFIG_DM644X_GPIO) += da8xx_gpio.o
obj-$(CONFIG_ALTERA_PIO) += altera_pio.o