ENGR00329352-2 doc: syscon: add clocks as optional property

User can specify clocks in devicetree which is used for accessing the registers
in this regmap.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
(cherry picked from commit da7e2a7123dfab6e7ad23e4db072ef4611a2b6cd)

diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt b/Documentation/devicetree/bindings/mfd/syscon.txt
index fe8150bb3248e9920f8a24f4b91efe39440b38d6..c17f40e27702091d17fdba5ed1b2e4a34eb19eba 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/syscon.txt
+++ b/Documentation/devicetree/bindings/mfd/syscon.txt
@@ -13,6 +13,9 @@ Required properties:
 - compatible: Should contain "syscon".
 - reg: the register region can be accessed from syscon
 
+Optional properties:
+- clocks: clock used for accessing the regmap
+
 Examples:
 gpr: iomuxc-gpr@020e0000 {
        compatible = "fsl,imx6q-iomuxc-gpr", "syscon";