[PATCH v3 04/17] dt-bindings: mtd: Describe nand-ecc-mode

[Miquel Raynal]

This property has been extensively used for almost two decades already,
a lot of device trees use it, this is not the preferred way to configure
the ECC engines but we cannot just ignore it. Describe the property,
list the exact strings which have once been supported and mark it
deprecated.

Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
Reviewed-by: Rob Herring <robh at kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
---
 Documentation/devicetree/bindings/mtd/raw-nand-chip.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/raw-nand-chip.yaml b/Documentation/devicetree/bindings/mtd/raw-nand-chip.yaml
index a0488bf60971..cd9ac60b048b 100644
--- a/Documentation/devicetree/bindings/mtd/raw-nand-chip.yaml
+++ b/Documentation/devicetree/bindings/mtd/raw-nand-chip.yaml
@@ -41,6 +41,14 @@ properties:
     enum: [ oob, interleaved ]
     deprecated: true
 
+  nand-ecc-mode:
+    description:
+      Legacy ECC configuration mixing the ECC engine choice and
+      configuration.
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [none, soft, soft_bch, hw, hw_syndrome, on-die]
+    deprecated: true
+
   nand-bus-width:
     description:
       Bus width to the NAND chip
-- 
2.34.1