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

From: [email-masked] (Kevin Hilman)
Date: Fri, 19 Aug 2016 11:19:13 -0500

Heiko Stuebner <[email-masked]> writes:

> Am Donnerstag, 18. August 2016, 13:28:58 CEST schrieb Kevin Hilman:
>> Finlye Xiao <[email-masked]> writes:
>> > From: Finley Xiao <[email-masked]>
>> > 
>> > 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 <[email-masked]>
>> 
>> 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