[PATCH v4 01/20] dt-bindings: mrvl,mmp-timer: add clock

[Lubomir Rintel]

The timer needs the timer clock to be enabled, otherwise it stops
ticking.

Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>

---
Changes since v1:
- Made the clock optional, to keep compatibility with DTs without it

 Documentation/devicetree/bindings/timer/mrvl,mmp-timer.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/timer/mrvl,mmp-timer.txt b/Documentation/devicetree/bindings/timer/mrvl,mmp-timer.txt
index 9a6e251462e7..b8f02c663521 100644
--- a/Documentation/devicetree/bindings/timer/mrvl,mmp-timer.txt
+++ b/Documentation/devicetree/bindings/timer/mrvl,mmp-timer.txt
@@ -5,9 +5,13 @@ Required properties:
 - reg : Address and length of the register set of timer controller.
 - interrupts : Should be the interrupt number.
 
+Optional properties:
+- clocks : Should contain a single entry describing the clock input.
+
 Example:
 	timer0: timer@d4014000 {
 		compatible = "mrvl,mmp-timer";
 		reg = <0xd4014000 0x100>;
 		interrupts = <13>;
+		clocks = <&coreclk 2>;
 	};
-- 
2.19.1