[PATCH v8 1/3] spi: dt-bindings: Add spi-device-addr peripheral property
Janani Sunil <[email protected]>
| Newsgroups | org.kernel.vger.linux-spi,org.infradead.lists.linux-riscv,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-doc,org.kernel.vger.linux-iio,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Some SPI devices support sharing a single chip select across multiple physical chips by encoding a device address in the SPI frame itself. Add the generic spi-device-addr property for describing these hardware addresses. The property is placed on the SPI peripheral node and may contain multiple addresses. Acked-by: Nuno Sá <[email protected]> Reviewed-by: Conor Dooley <[email protected]> Reviewed-by: Marcus Folkesson <[email protected]> Signed-off-by: Janani Sunil <[email protected]> --- Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml index 880a9f624566..4894196c8f9c 100644 --- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml +++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml @@ -142,6 +142,13 @@ properties: minItems: 2 maxItems: 4 + spi-device-addr: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + Device addresses used when multiple peripherals share a single chip + select. The array allows one logical peripheral to comprise multiple + physical devices, with one address per physical device. + st,spi-midi-ns: deprecated: true description: | -- 2.43.0