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List:       linux-tegra
Subject:    Re: [PATCH 08/31] cpufreq: tegra20: Migrate to dev_pm_opp_set_config()
From:       Viresh Kumar <viresh.kumar () linaro ! org>
Date:       2022-05-30 7:53:08
Message-ID: 20220530075256.lpw6bhupejy2dnqi () vireshk-i7
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On 29-05-22, 19:59, Dmitry Osipenko wrote:
> > Please keep the PTR_ERR_OR_ZERO.

Ahh, sorry about that. Fixed.

> > tegra20-cpufreq tegra20-cpufreq: failed to set OPP config: -1042688000
> 
> With that fixed, now there is another error:
> 
> [    1.761945] cpu cpu0: _of_add_opp_table_v2: no supported OPPs
> [    1.761960] cpu cpu0: OPP table can't be empty

So we failed to find any OPPs which work with the hardware version of
updated with dev_pm_opp_set_config(). I tried to follow the path and
see if there is something wrong here. Failed to find that :(

> I see this on Tegra30, but not on Tegra20. Apparently OPP table
> refcounting is broken on Tegra30 by this patchset. To make it clear,
> there are no error without these OPP patches applied. I may take a
> closer look if will be needed, just ping me.

Yes, it would be very helpful as I don't have the necessary hardware.

-- 
viresh
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