Re: [PATCH v2 1/4] nvmem: rockchip-efuse: Change initcall to subsys

Heiko Stuebner [off-list ref] writes:

Am Donnerstag, 18. August 2016, 13:28:58 CEST schrieb Kevin Hilman:

quoted

Finlye Xiao [off-list ref] writes:

quoted

From: Finley Xiao <redacted>

We will register a cpufreq notifier for adjusting opp's voltage, and it
need to fetch cpu's leakage from efuse in the notifier_call. so the efuse
driver should probe before cpufreq driver.

Signed-off-by: Finley Xiao <redacted>

Why can't this be handled with deferred probling?  initcall ordering is
a can of worms.

I think the issue is less between efuse and avs driver, but more between avs 
driver and cpufreq. The avs driver aims to modify the opp table and thus wants 
to do that / register the notifier before cpufreq starts.

And as there is no direct connection between cpufreq and the avs driver, 
making cpufreq defer probing is probably not really easy.

Thanks for the explanation.

Sounds like something that belongs in the changelog.

Kevin


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