Re: [PATCH v7 1/7] spi: dt-bindings: Add spi-device-addr peripheral property

Conor Dooley <[email protected]> Wed, 22 Jul 2026 17:39:53 +0100

Newsgroups	org.kernel.vger.linux-spi,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-doc,org.kernel.vger.linux-iio,org.kernel.vger.linux-kernel
Message-ID	<20260722-shoptalk-sublevel-35d09e42e31d@spud>

On Wed, Jul 22, 2026 at 09:54:13AM +0200, Janani Sunil wrote:
> 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.
> 
> Signed-off-by: Janani Sunil <[email protected]>

Reviewed-by: Conor Dooley <[email protected]>
pw-bot: not-applicable

> ---
>  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..b59d047cf117 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 device.
> +
>    st,spi-midi-ns:
>      deprecated: true
>      description: |
> 
> -- 
> 2.43.0
>

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