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Subject[PATCH v3 2/2] dt-bindings: Document the Synopsys GPIO via CREG bindings
Date
This patch adds documentation of device tree bindings for the Synopsys
GPIO via CREG driver.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
---
.../devicetree/bindings/gpio/snps,creg-gpio.txt | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/snps,creg-gpio.txt

diff --git a/Documentation/devicetree/bindings/gpio/snps,creg-gpio.txt b/Documentation/devicetree/bindings/gpio/snps,creg-gpio.txt
new file mode 100644
index 000000000000..11aba2f34066
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/snps,creg-gpio.txt
@@ -0,0 +1,18 @@
+Synopsys GPIO via CREG (Control REGisters) driver
+
+Required properties:
+- compatible : "snps,creg-gpio-hsdk" or "snps,creg-gpio-axs10x".
+- reg : Exactly one register range with length 0x4.
+- #gpio-cells : Should be one - the pin number.
+- gpio-controller : Marks the device node as a GPIO controller.
+- ngpios : Number of GPIO pins.
+
+Example:
+
+gpio: gpio@f00014b0 {
+ compatible = "snps,creg-gpio-hsdk";
+ reg = <0xf00014b0 0x4>;
+ gpio-controller;
+ #gpio-cells = <1>;
+ ngpios = <2>;
+};
--
2.14.4
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