Hi, This series adds bindings for slave-specific SPI controller properties. See patch 1 for more info on the motivations behind this. This is the best approach that I came up with with my limited knowledge of JSON schema. It has some limitations that are mentioned in patch 1. I don't know of any better ways to model this. Suggestions are welcome! Changes in v2: - Move other subnode properties listed in spi-controller.yaml to spi-slave-props.yaml - Move the Cadence controller-specific properties out of spi-slave-props.yaml. They will be added in a separate file. - Add a reference to spi-slave-props.yaml in spi-controller.yaml. - Update description. Pratyush Yadav (3): spi: dt-bindings: add schema listing slave-specific properties spi: dt-bindings: cdns,qspi-nor: Move slave-specific properties out dt-bindings: mtd: spi-nor: Add a reference to spi-slave-props.yaml .../bindings/mtd/jedec,spi-nor.yaml | 3 +- .../spi/cdns,qspi-nor-slave-props.yaml | 42 +++++++++ .../bindings/spi/cdns,qspi-nor.yaml | 33 ------- .../bindings/spi/spi-controller.yaml | 69 +------------- .../bindings/spi/spi-slave-props.yaml | 93 +++++++++++++++++++ 5 files changed, 139 insertions(+), 101 deletions(-) create mode 100644 Documentation/devicetree/bindings/spi/cdns,qspi-nor-slave-props.yaml create mode 100644 Documentation/devicetree/bindings/spi/spi-slave-props.yaml -- 2.33.1.835.ge9e5ba39a7