diff --git a/Documentation/powerpc/dts-bindings/mtd-physmap.txt b/Documentation/powerpc/dts-bindings/mtd-physmap.txt
index cd474f9..ab1115e 100644
--- a/Documentation/powerpc/dts-bindings/mtd-physmap.txt
+++ b/Documentation/powerpc/dts-bindings/mtd-physmap.txt
@@ -8,8 +8,6 @@ file systems on embedded devices.
  - reg : Address range of the flash chip
  - bank-width : Width (in bytes) of the flash bank.  Equal to the
    device width times the number of interleaved chips.
- - device-width : (optional) Width of a single flash chip.  If
-   omitted, assumed to be equal to 'bank-width'.
  - #address-cells, #size-cells : Must be present if the flash has
    sub-nodes representing partitions (see below).  In this case
    both #address-cells and #size-cells must be equal to 1.
@@ -48,7 +46,6 @@ Example:
 		compatible = "amd,am29lv128ml", "cfi-flash";
 		reg = <ff000000 01000000>;
 		bank-width = <4>;
-		device-width = <1>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 		fs@0 {