[PATCH v2 07/13] dt-bindings: mfd: atmel,sama5d2-flexcom: Add USART child node ref binding

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FLEXCOM, among other functionalities, has the ability to offer the USART
serial communication protocol. To have the FLEXCOM binding properly
validate its USART children nodes, we must reference the correct binding.
To differentiate between the SPI of FLEXCOM and the SPI of USART in SPI
mode, use the clock-names property, since the latter's respective
property is supposed to contain the "usart" string.

Signed-off-by: Sergiu Moga <sergiu.moga@xxxxxxxxxxxxx>
---


v1 -> v2:
- Nothing



 .../bindings/mfd/atmel,sama5d2-flexcom.yaml      | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/atmel,sama5d2-flexcom.yaml b/Documentation/devicetree/bindings/mfd/atmel,sama5d2-flexcom.yaml
index 0db0f2728b65..b5fb509f07ec 100644
--- a/Documentation/devicetree/bindings/mfd/atmel,sama5d2-flexcom.yaml
+++ b/Documentation/devicetree/bindings/mfd/atmel,sama5d2-flexcom.yaml
@@ -72,13 +72,21 @@ properties:
 
 patternProperties:
   "^serial@[0-9a-f]+$":
-    type: object
+    $ref: /schemas/serial/atmel,at91-usart.yaml
     description:
-      Child node describing USART. See atmel-usart.txt for details
-      of USART bindings.
+      Child node describing USART.
 
   "^spi@[0-9a-f]+$":
-    $ref: /schemas/spi/atmel,at91rm9200-spi.yaml
+    allOf:
+      - if:
+          properties:
+            clock-names:
+              contains:
+                const: usart
+        then:
+          $ref: /schemas/serial/atmel,at91-usart.yaml
+        else:
+          $ref: /schemas/spi/atmel,at91rm9200-spi.yaml
     description:
       Child node describing SPI.
 
-- 
2.25.1




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