diff options
| author | Geert Uytterhoeven <[email protected]> | 2023-02-14 15:26:43 +0100 |
|---|---|---|
| committer | Miquel Raynal <[email protected]> | 2023-03-22 16:59:08 +0100 |
| commit | a56cde41340ac4049fa6edac9e6cfbcd2804074e (patch) | |
| tree | 1461c526bca70369413ca20d167d52f85ee169bc | |
| parent | 75dce6a941e3f16c3b4878c8b2f46d5d07c619ce (diff) | |
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: [email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Miquel Raynal <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Tudor Ambarus <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/afe470603028db9374930b0c57464b1f6d52bdd3.1676384304.git.geert+renesas@glider.be
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml | 7 |
1 files changed, 7 insertions, 0 deletions
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: |