Re: [PATCH] soc: imx8m: Probe the SoC driver late

[Marek Vasut]

On 9/25/24 6:04 PM, Arnd Bergmann wrote:
> On Wed, Sep 25, 2024, at 16:00, Marek Vasut wrote:
> > With driver_async_probe=* on kernel command line, the following trace is
> > produced because on i.MX8M Plus hardware because the soc-imx8m.c driver
> > calls of_clk_get_by_name() which returns -EPROBE_DEFER because the clock
> > driver is not yet probed. This was not detected during regular testing
> > without driver_async_probe.
> >
> > Attempt to fix it by probing the SoC driver late, but I don't think that
> > is the correct approach here.
>
> I think the correct fix would be to propagate the -EPROBE_DEFER
> and return that from imx8_soc_init(), so it gets retried again
> after the clock driver.
I already tried that, but if I return -EPROBE_DEFER from 
device_initcall, it doesn't get retriggered . I suspect EPROBE_DEFER 
works only for proper drivers ?