From: Kevin Hilman <khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
To: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
Cc: Finlye Xiao <finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
nm-l0cyMroinI0@public.gmane.org,
rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org,
viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
jay.xu-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
rocky.hao-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
tim.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
tony.xie-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
ulysses.huang-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
lin.huang-TNX95d0MmH7DzftRWevZcw@public.gmane.org
Subject: Re: [PATCH v2 1/4] nvmem: rockchip-efuse: Change initcall to subsys
Date: Fri, 19 Aug 2016 11:19:13 -0500 [thread overview]
Message-ID: <m2a8g8n33y.fsf@baylibre.com> (raw)
In-Reply-To: <2844104.lMUOkH8YJy@phil> (Heiko Stuebner's message of "Fri, 19 Aug 2016 00:29:55 +0200")
Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org> writes:
> Am Donnerstag, 18. August 2016, 13:28:58 CEST schrieb Kevin Hilman:
>> Finlye Xiao <finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org> writes:
>> > From: Finley Xiao <finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
>> >
>> > 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 <finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
>>
>> 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
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2016-08-19 16:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-18 8:52 [PATCH v2 0/4] PM / AVS: add Rockchip cpu avs Finlye Xiao
[not found] ` <1471510341-63926-1-git-send-email-finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-08-18 8:52 ` [PATCH v2 1/4] nvmem: rockchip-efuse: Change initcall to subsys Finlye Xiao
[not found] ` <1471510341-63926-2-git-send-email-finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-08-18 18:28 ` Kevin Hilman
[not found] ` <m2mvkaq6c5.fsf-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2016-08-18 22:29 ` Heiko Stuebner
2016-08-19 16:19 ` Kevin Hilman [this message]
2016-08-18 8:52 ` [PATCH v2 2/4] of: introduce of_property_read_s32_index Finlye Xiao
2016-08-18 8:52 ` [PATCH v2 4/4] PM / AVS: rockchip-cpu-avs: add driver handling Rockchip cpu avs Finlye Xiao
[not found] ` <1471510341-63926-5-git-send-email-finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-08-18 19:02 ` Kevin Hilman
2016-08-29 6:08 ` Viresh Kumar
2016-09-12 21:55 ` Stephen Boyd
[not found] ` <20160912215515.GF7243-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-09-26 3:55 ` Viresh Kumar
2016-09-26 8:05 ` Heiko Stuebner
2016-09-27 8:40 ` Finley Xiao
2016-09-27 22:14 ` Stephen Boyd
2016-08-18 8:52 ` [PATCH v2 3/4] dt-bindings: add binding document for " Finlye Xiao
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=m2a8g8n33y.fsf@baylibre.com \
--to=khilman-rdvid1duhrbwk0htik3j/w@public.gmane.org \
--cc=dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org \
--cc=finley.xiao-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
--cc=frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org \
--cc=jay.xu-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
--cc=lin.huang-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=mark.rutland-5wv7dgnIgG8@public.gmane.org \
--cc=maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org \
--cc=nm-l0cyMroinI0@public.gmane.org \
--cc=rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org \
--cc=robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=rocky.hao-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
--cc=sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org \
--cc=sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
--cc=tim.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
--cc=tony.xie-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
--cc=ulysses.huang-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
--cc=viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
--cc=wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).