On Mon 26 Jun 13:20 PDT 2017, Suman Anna wrote: > On 06/26/2017 03:06 PM, Bjorn Andersson wrote: > > On Mon 26 Jun 08:54 PDT 2017, Suman Anna wrote: > >> On 06/25/2017 03:15 PM, Bjorn Andersson wrote: [..] > > I still would like to have resources allocated at probe() time, so I > > would appreciate a follow up patch moving the request_irq()s to probe, > > per above comment (but we can take that after v4.13). > > OK thanks. This is a common theme across all the remoteproc drivers > supporting rpmsg, and I definitely need to disable them in probe since > the boot or the virtio/rpmsg devices are not guaranteed to be present in > the probe. > We have a consistent struct rproc after rproc_alloc(). So before the virtio device (rpmsg in your case) calls virtio_find_vqs() rvring->vq will be NULL and rproc_vq_interrupt() is a nop. So AFAICT it should be fine to register this at probe time and leave it enabled...but there's a lot of moving parts involved here, so it's possible that I'm missing something. But in for both interrupts it's important to disable them before calling rproc_free(), as this will free the memory passed to the interrupt handler. Regards, Bjorn -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
