Messages in this thread | | | Date | Mon, 24 Oct 2022 16:00:01 +0200 | Subject | Re: [PATCH] clk: imx8mp: register driver at arch_initcall time | From | Ahmad Fatoum <> |
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Hello Rasmus,
On 24.10.22 15:48, Rasmus Villemoes wrote: > On 28/09/2022 14.41, Rasmus Villemoes wrote: >> We have an imx8mp-based board with an external gpio-triggered >> watchdog. Currently, we don't get to handle that in time before it >> resets the board. >> >> The probe of the watchdog device gets deferred because the SOC's GPIO >> controller is not yet ready, and the probe of that in turn gets deferred >> because its clock provider (namely, this driver) is not yet >> ready. Altogether, the watchdog does not get handled until the late >> initcall deferred_probe_initcall has made sure all leftover devices >> have been probed, and that's way too late. >> >> Aside from being necessary for our board, this also reduces total boot >> time because fewer device probes get deferred. > > ping
Module build is unaffected, because arch_initcall expands to module_init if it's built as a module, right? Noting that in the commit message would be good I think.
Also, did you try booting with fw_devlink=on? This should have resolved your issue too. Not sure what other issues it may cause on i.MX8MP.
Cheers, Ahmad
> > Rasmus > >
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