description: | NXP i.MX Message Unit as Zephyr MBOX compatible: "nxp,mbox-imx-mu" include: [base.yaml, mailbox-controller.yaml] properties: interrupts: required: true rx-channels: type: int enum: [1, 2, 3, 4] description: | Number of receive channels enabled on this instance. Setting this value to N, will enable channels 0 to N-1, consecutively. It should be set by the receiver core coupled with this MU instance. For example, if receiver A wants to Rx on channels 0 to 3, then A must set rx-channels of muA as follows: mruA { rx-channels = <4>; status = "okay"; }; mbox-cells: - channel