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authorYinbo Zhu <zhuyinbo@loongson.cn>2023-03-02 11:17:11 +0300
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-03-06 12:44:28 +0300
commit7944d3b7fe86067509751473aa917fdfd662d92c (patch)
tree9cc688da2b5e0e11b2ec151c17a358a3b01eee1c /drivers/gpio/Kconfig
parentdb2056e21c666ec83d5ecbaf973fe5505405e8e0 (diff)
downloadlinux-7944d3b7fe86067509751473aa917fdfd662d92c.tar.xz
gpio: loongson: add gpio driver support
The Loongson platforms GPIO controller contains 60 GPIO pins in total, 4 of which are dedicated GPIO pins, and the remaining 56 are reused with other functions. Each GPIO can set input/output and has the interrupt capability. This driver added support for Loongson GPIO controller and support to use DTS or ACPI to descibe GPIO device resources. Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn> Signed-off-by: Liu Peibao <liupeibao@loongson.cn> Signed-off-by: Juxin Gao <gaojuxin@loongson.cn> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/Kconfig')
-rw-r--r--drivers/gpio/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 13be729710f2..98114768c86a 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -380,6 +380,18 @@ config GPIO_LOONGSON
help
Driver for GPIO functionality on Loongson-2F/3A/3B processors.
+config GPIO_LOONGSON_64BIT
+ tristate "Loongson 64 bit GPIO support"
+ depends on LOONGARCH || COMPILE_TEST
+ select OF_GPIO
+ select GPIO_GENERIC
+ help
+ Say yes here to support the GPIO functionality of a number of
+ Loongson series of chips. The Loongson GPIO controller supports
+ up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
+ the remaining 56 are reused with other functions, with edge or
+ level triggered interrupts.
+
config GPIO_LPC18XX
tristate "NXP LPC18XX/43XX GPIO support"
default y if ARCH_LPC18XX