[PATCH 1/6] dt-bindings: mtd: qcom,nandc: Document the SDX75 NAND

[Kaushal Kumar <quic_kaushalk@xxxxxxxxxxx>]

Document the QPIC NAND controller v2.1.1 being used in
SDX75 SoC and it uses BAM DMA.

SDX75 NAND controller has DMA-coherent and iommu support
so define them in the properties section, without which
'dtbs_check' reports the following error:

  nand-controller@1cc8000: Unevaluated properties are not
  allowed ('dma-coherent', 'iommus' were unexpected)

Signed-off-by: Kaushal Kumar <quic_kaushalk@xxxxxxxxxxx>
---
 .../devicetree/bindings/mtd/qcom,nandc.yaml   | 23 ++++++++++++++-----
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
index 35b4206ea918..8b77e8837205 100644
--- a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
+++ b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
@@ -11,12 +11,17 @@ maintainers:
 
 properties:
   compatible:
-    enum:
-      - qcom,ipq806x-nand
-      - qcom,ipq4019-nand
-      - qcom,ipq6018-nand
-      - qcom,ipq8074-nand
-      - qcom,sdx55-nand
+    OneOf:
+      - items:
+          - enum:
+              - qcom,sdx75-nand
+          - const: qcom,sdx55-nand
+      - items:
+          - const: qcom,ipq806x-nand
+          - const: qcom,ipq4019-nand
+          - const: qcom,ipq6018-nand
+          - const: qcom,ipq8074-nand
+          - const: qcom,sdx55-nand
 
   reg:
     maxItems: 1
@@ -31,6 +36,12 @@ properties:
       - const: core
       - const: aon
 
+  dma-coherent: true
+
+  iommus:
+    minItems: 1
+    maxItems: 3
+
   qcom,cmd-crci:
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
-- 
2.17.1