ASoC: dt-bindings: sound: cirrus: cs530x: Add SPI bus support

The CS530x device family supports multiple control interfaces.
At present, only the I2C interface is implemented. Adding support
for the SPI control interface, operating at up to 24 MHz.

Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://patch.msgid.link/20251023090327.58275-12-vitalyr@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs530x.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs530x.yaml
index 04ed197f91ebc949aa581829594df750e1a3bba6..7600fff0e3b71b0a98ecc630d179907ab338d461 100644 (file)
--- a/Documentation/devicetree/bindings/sound/cirrus,cs530x.yaml
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs530x.yaml
@@ -15,6 +15,7 @@ description:
 
 allOf:
   - $ref: dai-common.yaml#
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
 
 properties:
   compatible:
@@ -30,6 +31,9 @@ properties:
   reg:
     maxItems: 1
 
+  spi-max-frequency:
+    maximum: 24000000
+
   '#sound-dai-cells':
     const: 1