On Wed, Sep 18, 2019 at 8:58 AM Andre Przywara <andre.przywara@xxxxxxx> wrote: > > > > Also there is mbox_chan_txdone() with which a controller driver can signal TX completion explicitly. > > > > > No. Controller can use that only if it has specified txdone_irq, which > > is not the case here. > > I see. So does the framework handle the case where both txdone_poll and txdone_irq are false? > Of course. If there is no IRQ or POLL mechanism for controller to detect tx-done, the only way left is for client driver to know by some 'ack' response (if any). The client should call mbox_client_txdone() Thanks
