[PATCH v3 3/6] dt-bindings: clock: add DT binding for the TBG clocks on Armada 3700

[Gregory CLEMENT]

This commit adds the DT binding documentation for the Time Base Generator
clock used in the Marvell Armada 3700 SoCs.

Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
---
 .../bindings/clock/armada3700-tbg-clock.txt        | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/armada3700-tbg-clock.txt

diff --git a/Documentation/devicetree/bindings/clock/armada3700-tbg-clock.txt b/Documentation/devicetree/bindings/clock/armada3700-tbg-clock.txt
new file mode 100644
index 000000000000..0ba1d83ff363
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/armada3700-tbg-clock.txt
@@ -0,0 +1,27 @@
+* Time Base Generator Clock bindings for Marvell Armada 37xx SoCs
+
+Marvell Armada 37xx SoCs provde Time Base Generator clocks which are
+used as parent clocks for the peripheral clocks.
+
+The TBG clock consumer should specify the desired clock by having the
+clock ID in its "clocks" phandle cell.
+
+The following is a list of provided IDs and clock names on Armada 3700:
+ 0 = TBG A P
+ 1 = TBG B P
+ 2 = TBG A S
+ 3 = TBG B S
+
+Required properties:
+- compatible : shall be "marvell,armada-3700-tbg-clock"
+- reg : must be the register address of North Bridge PLL register
+- #clock-cells : from common clock binding; shall be set to 1
+
+Example:
+
+tbg: tbg@13200 {
+	compatible = "marvell,armada-3700-tbg-clock";
+	reg = <0x13200 0x1000>;
+	clocks = <&xtalclk>;
+	#clock-cells = <1>;
+};
-- 
2.5.0