[PATCH] dt-bindings: mtd: spi-nor: clarify the need for spi-nor compatibles

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Most SPI NOR devices do not require a specific compatible, their ID can
in general be discovered with the JEDEC READ ID opcode. In this case,
only the "jedec,spi-nor" generic compatible is expected. Clarify this
information in the compatible description to (i) help device-tree
writers and (ii) prevent further attempts to extend this list with
useless information.

Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
---
 Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
index 7149784a36ac..bef071163e38 100644
--- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
+++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
@@ -43,8 +43,10 @@ properties:
           - const: jedec,spi-nor
       - const: jedec,spi-nor
     description:
-      Must also include "jedec,spi-nor" for any SPI NOR flash that can be
-      identified by the JEDEC READ ID opcode (0x9F).
+      SPI NOR flashes compatible with the JEDEC standard or which may be
+      identified with the JEDEC READ ID opcode (0x9F) do not deserve a
+      specific compatible. They should instead only be matched against
+      the generic "jedec,spi-nor" compatible.
 
   reg:
     minItems: 1
-- 
2.34.1




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