[PATCH v15 1/4] dt-bindings: i2c: pca954x: Correct interrupt support

[Patrick Rudolph <patrick.rudolph@9elements.com>]

Only some of the PCA954x compatible ICs have interrupt
capability, but the binding advertises it on all ICs.

Sync the dt-binding with the driver and only advertise it on:
 - nxp,pca9542
 - nxp,pca9543
 - nxp,pca9544
 - nxp,pca9545

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../bindings/i2c/i2c-mux-pca954x.yaml         | 23 +++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
index 9f1726d0356b..e5c1070903ef 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
@@ -12,9 +12,6 @@ maintainers:
 description:
   The binding supports NXP PCA954x and PCA984x I2C mux/switch devices.
 
-allOf:
-  - $ref: /schemas/i2c/i2c-mux.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -63,6 +60,24 @@ required:
   - compatible
   - reg
 
+allOf:
+  - $ref: /schemas/i2c/i2c-mux.yaml#
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - nxp,pca9542
+                - nxp,pca9543
+                - nxp,pca9544
+                - nxp,pca9545
+    then:
+      properties:
+        interrupts: false
+        "#interrupt-cells": false
+        interrupt-controller: false
+
 unevaluatedProperties: false
 
 examples:
@@ -74,7 +89,7 @@ examples:
         #size-cells = <0>;
 
         i2c-mux@74 {
-            compatible = "nxp,pca9548";
+            compatible = "nxp,pca9545";
             #address-cells = <1>;
             #size-cells = <0>;
             reg = <0x74>;
-- 
2.41.0