dt-bindings: soc: samsung: usi: refer to dtschema for SPI

After adding DT schema for Samsung SPI controller, the Samsung USI
bindings can reference it directly for proper schema validation.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220324134106.103588-1-krzk@kernel.org

diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
index a98ed66d092e8960ed1c469c468251b2304a63cf..55417a649970d943223bdbc09bf6577343df52fe 100644 (file)
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
@@ -77,7 +77,7 @@ patternProperties:
     description: Child node describing underlying UART/serial
 
   "^spi@[0-9a-f]+$":
-    type: object
+    $ref: /schemas/spi/samsung,spi.yaml
     description: Child node describing underlying SPI
 
 required: