[PATCH] dt-bindings: aspeed-lpc: Make parameter optional

[Vijay Khemka]

Memory-region and flash phandle is not a required parameter, it is
optional to describe in device tree and needed only use basis.

Signed-off-by: Vijay Khemka <vijaykhemka at fb.com>
---
 Documentation/devicetree/bindings/mfd/aspeed-lpc.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
index 34dd89087cff..ff0cb28903dd 100644
--- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
+++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
@@ -135,6 +135,10 @@ Required properties:
 - clocks:	contains a phandle to the syscon node describing the clocks.
 		There should then be one cell representing the clock to use
 
+Optional properties:
+These below properties are optional and required only if one need to use it
+through ioctl.
+
 - memory-region: A phandle to a reserved_memory region to be used for the LPC
 		to AHB mapping
 
-- 
2.17.1