Re: [PATCH] coresight: platform: check the availability of the endpoint before parse

[Jie Gan]

On 3/20/2026 5:23 PM, Leo Yan wrote:
> Hi Jie,
>
> On Fri, Mar 20, 2026 at 04:44:54PM +0800, Jie Gan wrote:
>
> [...]
>
> > It's about the coresight_find_device_by_fwnode() returns NULL, resulting in
> > -EPROBE_DEFER. So the probe process will re-start after several seconds, but
> > always failed because we have a "disabled" device node in DT(we can see this
> > device in DT, but it never becomes available). It's ok if the device only
> > has one remote device, but has issue with more than one remote devices.
> >
> > Consider below situation:
> >
> >        device0
> >     |          |
> >    device1  device2(status = "disabled")
> >
> > The probe of device0 succeeds only when device1 and device2 are available at
> > probe time. But I think it's ok to probe the device0 only with device1
> > available.
>
> Thanks a lot for details.  We might need to report warning or error if
> all remote endpoints fail (e.g., device1/device2 both are disabled),
> this is a rare case so would be low priority.
>
> For this patch:
>
> Reviewed-by: Leo Yan <leo.yan@xxxxxxx>

Gentle ping.

Thanks,
Jie