Messages in this thread | | | From | Jassi Brar <> | Date | Wed, 18 Sep 2019 09:22:54 -0500 | Subject | Re: [PATCH V6 2/2] mailbox: introduce ARM SMC based mailbox |
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On Wed, Sep 18, 2019 at 8:58 AM Andre Przywara <andre.przywara@arm.com> 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
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