test: dm: add a test for MDIO MUX DM uclass

[platform/kernel/u-boot.git] / arch / sandbox / dts / test.dts

diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 531c1af..a085676 100644 (file)
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -824,7 +824,28 @@
                dma-names = "m2m", "tx0", "rx0";
        };
 
-       mdio-test {
+       /*
+        * keep mdio-mux ahead of mdio so that the mux is removed first at the
+        * end of the test.  If parent mdio is removed first, clean-up of the
+        * mux will trigger a 2nd probe of parent-mdio, leaving parent-mdio
+        * active at the end of the test.  That it turn doesn't allow the mdio
+        * class to be destroyed, triggering an error.
+        */
+       mdio-mux-test {
+               compatible = "sandbox,mdio-mux";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               mdio-parent-bus = <&mdio>;
+
+               mdio-ch-test@0 {
+                       reg = <0>;
+               };
+               mdio-ch-test@1 {
+                       reg = <1>;
+               };
+       };
+
+       mdio: mdio-test {
                compatible = "sandbox,mdio";
        };
 };