Hi Laurent,
On Mon, Sep 5, 2016 at 10:25 AM, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> On Monday 05 Sep 2016 10:20:52 Geert Uytterhoeven wrote:
>> On Mon, Sep 5, 2016 at 10:17 AM, Laurent Pinchart wrote:
>> >> BTW, it seems I missed a few more s2ram resume errors:
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fe920000.vsp failed to resume noirq: error -13
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fe960000.vsp failed to resume noirq: error -13
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fe9a0000.vsp failed to resume noirq: error -13
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fe9b0000.vsp failed to resume noirq: error -13
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fe9c0000.vsp failed to resume noirq: error -13
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fea20000.vsp failed to resume noirq: error -13
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fea28000.vsp failed to resume noirq: error -13
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -13
>> >> PM: Device fea30000.vsp failed to resume noirq: error -13
>> >> vsp1 fea38000.vsp: failed to reset wpf.0
>> >> dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns -110
>> >> PM: Device fea38000.vsp failed to resume noirq: error -110
>> >>
>> >> -13 == -EACCES, returned by rcar_fcp_enable() as pm_runtime_get_sync()
>> >> is called too early during system resume,
>> >
>> > Do you have a fix for this ? :-)
>>
>> Unfortuately not.
>
> Is this caused by the fact that pm_runtime_get_sync() is called on the FCP
> device before the FCP gets system-resumed ? Lovely PM order dependency :-/
It's called from resume_noirq. IIRC, it's called a second time from resume.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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