From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 .../devicetree/bindings/gpio/gpio-74x164.txt       | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-74x164.txt

(limited to 'Documentation/devicetree/bindings/gpio/gpio-74x164.txt')

diff --git a/Documentation/devicetree/bindings/gpio/gpio-74x164.txt b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
new file mode 100644
index 00000000..cc260802
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
@@ -0,0 +1,22 @@
+* Generic 8-bits shift register GPIO driver
+
+Required properties:
+- compatible : Should be "fairchild,74hc595"
+- reg : chip select number
+- gpio-controller : Marks the device node as a gpio controller.
+- #gpio-cells : Should be two.  The first cell is the pin number and
+  the second cell is used to specify the gpio polarity:
+      0 = active high
+      1 = active low
+- registers-number: Number of daisy-chained shift registers
+
+Example:
+
+gpio5: gpio5@0 {
+	compatible = "fairchild,74hc595";
+	reg = <0>;
+	gpio-controller;
+	#gpio-cells = <2>;
+	registers-number = <4>;
+	spi-max-frequency = <100000>;
+};
-- 
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