On 17/03/2025 12:03, Jjian Zhou wrote: > + > + ret = devm_request_threaded_irq(dev, irq, NULL, > + mtk_vcp_mbox_irq_thread, IRQF_ONESHOT, > + dev_name(dev), mbox->chans); > + if (ret < 0) > + return ret; > + > + platform_set_drvdata(pdev, priv); > + > + dev_dbg(dev, "MTK VCP mailbox initialized\n"); Drop Best regards, Krzysztof