From a56cde41340ac4049fa6edac9e6cfbcd2804074e Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 14 Feb 2023 15:26:43 +0100 Subject: dt-bindings: mtd: jedec,spi-nor: Document CPOL/CPHA support SPI EEPROMs typically support both SPI Mode 0 (CPOL=CPHA=0) and Mode 3 (CPOL=CPHA=1). However, using the latter is currently flagged as an error by "make dtbs_check", e.g.: arch/arm/boot/dts/r8a7791-koelsch.dtb: flash@0: Unevaluated properties are not allowed ('spi-cpha', 'spi-cpol' were unexpected) From schema: Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml Fix this by documenting support for CPOL=CPHA=1. Fixes: 233363aba72ac638 ("spi/panel: dt-bindings: drop CPHA and CPOL from common properties") Cc: stable@vger.kernel.org Signed-off-by: Geert Uytterhoeven Reviewed-by: Miquel Raynal Reviewed-by: Krzysztof Kozlowski Reviewed-by: Tudor Ambarus Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/afe470603028db9374930b0c57464b1f6d52bdd3.1676384304.git.geert+renesas@glider.be --- Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml index 3fe981b14e2c..54736362378e 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml @@ -76,6 +76,13 @@ properties: If "broken-flash-reset" is present then having this property does not make any difference. + spi-cpol: true + spi-cpha: true + +dependencies: + spi-cpol: [ spi-cpha ] + spi-cpha: [ spi-cpol ] + unevaluatedProperties: false examples: -- cgit v1.2.3