[PATCH v10 1/3] spi: dt-bindings: Add spi-device-addr peripheral property

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 <nuno.sa@analog.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Janani Sunil <janani.sunil@analog.com>
---
 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