Most of Freescale/NXP GPMI device trees use size-cells==1 (even when
actually not needed except few boards).  This fixes dtbs_check warnings
like:

    arch/arm64/boot/dts/freescale/imx8mm-beacon-kit.dt.yaml: 
nand-controller@33002000: #size-cells:0:0: 0 was expected

Signed-off-by: Krzysztof Kozlowski <[email protected]>
---
 Documentation/devicetree/bindings/mtd/nand-controller.yaml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mtd/nand-controller.yaml 
b/Documentation/devicetree/bindings/mtd/nand-controller.yaml
index 40fc5b0b2b8c..0879e1108837 100644
--- a/Documentation/devicetree/bindings/mtd/nand-controller.yaml
+++ b/Documentation/devicetree/bindings/mtd/nand-controller.yaml
@@ -34,7 +34,10 @@ properties:
     const: 1
 
   "#size-cells":
-    const: 0
+    description:
+      Depends on your controller. Put zero unless you need a mapping between CS
+      lines and dedicated memory regions.
+    enum: [0, 1]
 
   ranges: true
 
-- 
2.17.1

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