From b440915af2e41daff7ee33e1d0ec29af5c37a1bf Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Thu, 27 Aug 2020 10:51:55 +0200 Subject: [PATCH] dt-bindings: mtd: Document boolean NAND ECC properties Document nand-use-soft-ecc-engine and nand-no-ecc-engine properties. The former is here to force software correction, the latter prevents any correction to happen. These properties (along with nand-ecc-engine) are supposed to be more accurate than the current nand-ecc-modes wich is very misleading and very often people think it is mandatory while the core should be relied upon to decide which correction to handle. nand-ecc-mode was already inacurate, but it becomes totally problematic with setups where there are several hardware engines. Signed-off-by: Miquel Raynal Reviewed-by: Rob Herring Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-8-miquel.raynal@bootlin.com --- Documentation/devicetree/bindings/mtd/nand-controller.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/nand-controller.yaml b/Documentation/devicetree/bindings/mtd/nand-controller.yaml index ba7f8e4..e79bb6d 100644 --- a/Documentation/devicetree/bindings/mtd/nand-controller.yaml +++ b/Documentation/devicetree/bindings/mtd/nand-controller.yaml @@ -68,6 +68,14 @@ patternProperties: 3/ The ECC engine is external, in this case the phandle should reference the specific ECC engine node. + nand-use-soft-ecc-engine: + type: boolean + description: Use a software ECC engine. + + nand-no-ecc-engine: + type: boolean + description: Do not use any ECC correction. + nand-ecc-placement: allOf: - $ref: /schemas/types.yaml#/definitions/string -- 2.7.4