aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@s-opensource.com>2017-07-17 11:17:36 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-07-17 11:17:36 -0300
commita3db9d60a118571e696b684a6e8c692a2b064941 (patch)
treeff7bae0f79b7a2ee0bce03de4f883550200c52a9 /Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
parent2748e76ddb2967c4030171342ebdd3faa6a5e8e8 (diff)
parent5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff)
downloadlinux-a3db9d60a118571e696b684a6e8c692a2b064941.tar.gz
Merge tag 'v4.13-rc1' into patchwork
Linux v4.13-rc1 * tag 'v4.13-rc1': (11136 commits) Linux v4.13-rc1 random: reorder READ_ONCE() in get_random_uXX random: suppress spammy warnings about unseeded randomness replace incorrect strscpy use in FORTIFY_SOURCE kmod: throttle kmod thread limit kmod: add test driver to stress test the module loader MAINTAINERS: give kmod some maintainer love xtensa: use generic fb.h fault-inject: add /proc/<pid>/fail-nth fault-inject: simplify access check for fail-nth fault-inject: make fail-nth read/write interface symmetric fault-inject: parse as natural 1-based value for fail-nth write interface fault-inject: automatically detect the number base for fail-nth write interface kernel/watchdog.c: use better pr_fmt prefix MAINTAINERS: move the befs tree to kernel.org lib/atomic64_test.c: add a test that atomic64_inc_not_zero() returns an int mm: fix overflow check in expand_upwards() ubifs: Set double hash cookie also for RENAME_EXCHANGE ubifs: Massage assert in ubifs_xattr_set() wrt. init_xattrs ubifs: Don't leak kernel memory to the MTD ...
Diffstat (limited to 'Documentation/devicetree/bindings/gpio/ingenic,gpio.txt')
-rw-r--r--Documentation/devicetree/bindings/gpio/ingenic,gpio.txt46
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
new file mode 100644
index 000000000000..7988aeb725f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
@@ -0,0 +1,46 @@
+Ingenic jz47xx GPIO controller
+
+That the Ingenic GPIO driver node must be a sub-node of the Ingenic pinctrl
+driver node.
+
+Required properties:
+--------------------
+
+ - compatible: Must contain one of:
+ - "ingenic,jz4740-gpio"
+ - "ingenic,jz4770-gpio"
+ - "ingenic,jz4780-gpio"
+ - reg: The GPIO bank number.
+ - interrupt-controller: Marks the device node as an interrupt controller.
+ - interrupts: Interrupt specifier for the controllers interrupt.
+ - #interrupt-cells: Should be 2. Refer to
+ ../interrupt-controller/interrupts.txt for more details.
+ - gpio-controller: Marks the device node as a GPIO controller.
+ - #gpio-cells: Should be 2. The first cell is the GPIO number and the second
+ cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
+ GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
+ - gpio-ranges: Range of pins managed by the GPIO controller. Refer to
+ 'gpio.txt' in this directory for more details.
+
+Example:
+--------
+
+&pinctrl {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpa: gpio@0 {
+ compatible = "ingenic,jz4740-gpio";
+ reg = <0>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 0 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <28>;
+ };
+};