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-rw-r--r--dts/src/arm/omap2420.dtsi1
1 files changed, 1 insertions, 0 deletions
diff --git a/dts/src/arm/omap2420.dtsi b/dts/src/arm/omap2420.dtsi
index ae89aad015..e2b2e93d7b 100644
--- a/dts/src/arm/omap2420.dtsi
+++ b/dts/src/arm/omap2420.dtsi
@@ -157,6 +157,7 @@
interrupts = <26>, <34>;
interrupt-names = "dsp", "iva";
ti,hwmods = "mailbox";
+ #mbox-cells = <1>;
ti,mbox-num-users = <4>;
ti,mbox-num-fifos = <6>;
mbox_dsp: dsp {