[PATCH 4/4] dt-bindings: gpio: document bindings supported by gpio-mpc8xxx.c

[Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>]

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
 .../devicetree/bindings/gpio/gpio-mpc8xxx.txt      | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt

diff --git a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
new file mode 100644
index 000000000000..0449fc4013f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
@@ -0,0 +1,24 @@
+* Freescale MPC512x/MPC8xxx GPIO controller
+
+Required properties:
+- compatible : Should be "fsl,<soc>-gpio"
+  The following <soc>s are known to be supported:
+    mpc5121, mpc5125, mpc8349, mpc8572, mpc8610, pq3, qoriq
+- reg : Address and length of the register set for the device
+- interrupts : Should be the port interrupt shared by all 32 pins.
+- #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
+
+Example:
+
+gpio0: gpio@1100 {
+	compatible = "fsl,mpc5125-gpio";
+	#gpio-cells = <2>;
+	reg = <0x1100 0x080>;
+	interrupts = <78 0x8>;
+	status = "okay";
+};
+
+
-- 
2.1.4

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