Add Device Tree binding documentation for the clocks
outputs in the Maxim 77802 Power Management IC.

Signed-off-by: Javier Martinez Canillas <javier.marti...@collabora.co.uk>
---

Changes since v5:
 - Fix typo error in DT binding. Suggested by Andreas Farber.
 - Add "clock-output-names" as an optional property since now is supported.

Changes since v4: None

Changes since v3:
 - Don't use the same clock driver name in clock-names since it's a consumer
   concept and most probably will be different. Suggested by Doug Anderson.

Changes since v2:
 - Split the DT binding documentation in a separate patch
---
 .../devicetree/bindings/clock/maxim,max77802.txt   | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/maxim,max77802.txt

diff --git a/Documentation/devicetree/bindings/clock/maxim,max77802.txt 
b/Documentation/devicetree/bindings/clock/maxim,max77802.txt
new file mode 100644
index 0000000..c6dc783
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/maxim,max77802.txt
@@ -0,0 +1,44 @@
+Binding for Maxim MAX77802 32k clock generator block
+
+This is a part of device tree bindings of MAX77802 multi-function device.
+More information can be found in bindings/mfd/max77802.txt file.
+
+The MAX77802 contains two 32.768khz clock outputs that can be controlled
+(gated/ungated) over I2C.
+
+Following properties should be present in main device node of the MFD chip.
+
+Required properties:
+- #clock-cells: From common clock binding; shall be set to 1.
+
+Optional properties:
+- clock-output-names: From common clock binding.
+
+Each clock is assigned an identifier and client nodes can use this identifier
+to specify the clock which they consume. Following indices are allowed:
+     - 0: 32khz_ap clock,
+     - 1: 32khz_cp clock.
+
+Clocks are defined as preprocessor macros in dt-bindings/clock/maxim,max77802.h
+header and can be used in device tree sources.
+
+Example: Node of the MFD chip
+
+       max77802: max77802@09 {
+               compatible = "maxim,max77802";
+               interrupt-parent = <&wakeup_eint>;
+               interrupts = <26 0>;
+               reg = <0x09>;
+               #clock-cells = <1>;
+
+               /* ... */
+       };
+
+Example: Clock consumer node
+
+       foo@0 {
+               compatible = "bar,foo";
+               /* ... */
+               clock-names = "my-clock";
+               clocks = <&max77802 MAX77802_CLK_32K_AP>;
+       };
-- 
2.0.0.rc2

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