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From: Stephan Gerhold <stephan@gerhold.net>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Nishanth Menon <nm@ti.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Stephen Boyd <sboyd@kernel.org>,
	Viresh Kumar <vireshk@kernel.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Stephan Gerhold <stephan.gerhold@kernkonzept.com>,
	linux-pm@vger.kernel.org,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Konrad Dybcio <konrad.dybcio@linaro.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH V2 0/3] OPP: Simplify required-opp handling
Date: Fri, 3 Nov 2023 10:24:08 +0100	[thread overview]
Message-ID: <ZUS8OC6tY4sxS5RA@gerhold.net> (raw)
In-Reply-To: <20231103052854.bc7jqaubc5uj6ncj@vireshk-i7>

On Fri, Nov 03, 2023 at 10:58:54AM +0530, Viresh Kumar wrote:
> On 30-10-23, 15:54, Viresh Kumar wrote:
> > I wasn't able to test this locally (despite trying to hack it around) and need
> > help from someone who is `virt_devs` field of `struct dev_pm_opp_config`.
> > 
> > Pushed here:
> > 
> > git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git opp/required-opps
> > 
> > V1->V2:
> > - Support opp-level 0, drop vote i.e..
> > - Fix OPP pointer while calling dev_pm_opp_set_opp() recursively.
> > - Minor checks and fixes.
> > - Add Reviewed-by from Ulf.
> 
> Stephan, Ulf,
> 
> Any feedback on this before I merge it ?
> 

Sorry for the delay. I tested this successfully on the MSM8909 board on
Wednesday (with the single genpd, and without opp-level 0 there), but
until now didn't find time to test it on the MSM8916 board with the
multiple genpds and the opp-level 0.

The opp-level 0 works fine now, thanks for fixing that!

The warning in _link_required_opps() when using the parent genpd setup
[1] is still present though. Given that this setup is an existing
feature in the genpd core I would appreciate if we try to find a
solution before merging this patch set. It's kind of a regression
otherwise since the warning isn't present without this patch set.
Maybe someone else is already actively using such a setup.

Thanks!
Stephan

[1]: https://lore.kernel.org/linux-pm/ZTkciw5AwufxQYnB@gerhold.net/

  parent reply	other threads:[~2023-11-03  9:24 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-30 10:24 Viresh Kumar
2023-10-30 10:24 ` [PATCH V2 1/3] OPP: Level zero is valid Viresh Kumar
2023-10-30 18:47   ` Konrad Dybcio
2023-10-31  5:26     ` Viresh Kumar
2023-10-31 10:07       ` Konrad Dybcio
2023-11-06 15:41   ` Ulf Hansson
2023-10-30 10:24 ` [PATCH V2 2/3] OPP: Use _set_opp_level() for single genpd case Viresh Kumar
2023-10-30 10:24 ` [PATCH V2 3/3] OPP: Call dev_pm_opp_set_opp() for required OPPs Viresh Kumar
2023-11-03  5:28 ` [PATCH V2 0/3] OPP: Simplify required-opp handling Viresh Kumar
2023-11-03  9:20   ` Ulf Hansson
2023-11-03  9:24   ` Stephan Gerhold [this message]
2023-11-03  9:27     ` Viresh Kumar
2023-11-16 10:43     ` Viresh Kumar

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