[PATCH-v2 3/5] mfd: devicetree: bindings: Add clock subdevice node information

[Vaibhav Hiremath]

This patch updates the binding documentation for optional
clocks node and related information for buffered 32KHz clock.

Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@xxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/mfd/88pm800.txt | 27 +++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/88pm800.txt b/Documentation/devicetree/bindings/mfd/88pm800.txt
index 2c82fcb..bc6cb02 100644
--- a/Documentation/devicetree/bindings/mfd/88pm800.txt
+++ b/Documentation/devicetree/bindings/mfd/88pm800.txt
@@ -15,6 +15,26 @@ Optional properties :
   Without this both BUCK1A and BUCK1B operates independently with 3A capacity.
   (This property is only applicable to 88PM860)
 
+Optional nodes:
+- clocks: 88pm800 family of devices provide multiple buffered 32.768
+  KHz outputs, so to register these as clocks with common clock framework
+  instantiate a sub-node named "clocks". It uses the common clock binding
+  documented in :
+  [Documentation/devicetree/bindings/clock/clock-bindings.txt]
+
+  - #clock-cells: should be 1.
+
+  - The following is the list of clocks generated by the controller. Each clock
+    is assigned an identifier and client nodes use this identifier to specify
+    the clock which they consume.
+    Clock		ID           	Devices
+    ----------------------------------------------------------
+    pm800_clk32k_1	0		88PM800 and 88PM860
+    pm800_clk32k_2	1		88PM800 and 88PM860
+    pm800_clk32k_3	2		88PM800
+
+  - compatible: Should be : "marvell,88pm800-clk"
+
 88pm80x family of devices consists of varied group of sub-devices:
 
 Device		 	Supply Names	 Description
@@ -22,6 +42,7 @@ Device		 	Supply Names	 Description
 88pm80x-onkey		:		: On key
 88pm80x-rtc		:		: RTC
 88pm80x-regulator	:		: Regulators
+88pm80x-clk		:		: 32KHz Clk provider
 
 Example:
 
@@ -33,6 +54,12 @@ Example:
 		interrupt-controller;
 		#interrupt-cells = <1>;
 
+		pm800clk: clocks {
+			compatible = "marvell,88pm800-clk";
+			#clock-cells = <1>;
+			clock-output-names = "xx", "yy", "zz";
+		};
+
 		regulators {
 			compatible = "marvell,88pm80x-regulator";
 
-- 
1.9.1

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