From: Sudeep Holla <sudeep.holla@arm.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Nicola Mazzucato <nicola.mazzucato@arm.com>,
linux-kernel@vger.kernel.org, rjw@rjwysocki.net,
linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
lukasz.luba@arm.com, Sudeep Holla <sudeep.holla@arm.com>
Subject: Re: [PATCH 2/2] cpufreq: arm_scmi: Set fast_switch_possible conditionally
Date: Thu, 18 Jun 2020 09:08:33 +0100 [thread overview]
Message-ID: <20200618080833.GA20559@bogus> (raw)
In-Reply-To: <20200618061420.5q7xsldakax2zro5@vireshk-i7>
On Thu, Jun 18, 2020 at 11:44:20AM +0530, Viresh Kumar wrote:
> On 17-06-20, 13:47, Sudeep Holla wrote:
> > This is first step towards avoiding polling based cpufreq set if firmware
> > has fast access registers that bypass normal mailbox based messaging.
> >
> > If you happy with this and provide ack, I will take this along with scmi
> > changes via ARM SoC. Hope that is fine by you.
>
> Sudeep,
>
> I am not sure how it concerns me frankly :)
>
Sorry I wasn't clear.
> AFAICT, this is enabling fast switch based on some mechanism (internal
> to scmi) and so either the cpufreq driver will have fast-switch
> enabled or not, and both are fine by the cpufreq core.
>
Indeed.
> And so I am confused on why my Ack is important here :)
>
Generally ARM SoC team expects a stamp from other subsystem maintainers
if they are pulling it. I understand there is more firmware aspect than
cpufreq aspect here, but still we may need your stamp to this 😉 for
logistic reasons.
--
Regards,
Sudeep
next prev parent reply other threads:[~2020-06-18 8:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <159378759580.7741.1360234334350850998.b4-ty@arm.com>
[not found] ` <159378764840.7835.7289029317816454363.b4-ty@arm.com>
2020-06-17 9:43 ` [PATCH 1/2] firmware: arm_scmi: Add fast_switch_possible() api Nicola Mazzucato
2020-06-17 9:43 ` [PATCH 2/2] cpufreq: arm_scmi: Set fast_switch_possible conditionally Nicola Mazzucato
2020-06-17 12:47 ` Sudeep Holla
2020-06-18 6:14 ` Viresh Kumar
2020-06-18 8:08 ` Sudeep Holla [this message]
2020-06-18 9:54 ` Viresh Kumar
2020-07-03 14:49 ` [PATCH 1/2] firmware: arm_scmi: Add fast_switch_possible() api Sudeep Holla
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