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From: Thara Gopinath <thara.gopinath@linaro.org>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Eduardo Valentin <edubezval@gmail.com>,
	Zhang Rui <rui.zhang@intel.com>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Andy Gross <agross@kernel.org>,
	amit.kucheria@verdurent.com, Mark Rutland <mark.rutland@arm.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Linux PM <linux-pm@vger.kernel.org>,
	DTML <devicetree@vger.kernel.org>,
	linux-arm-msm <linux-arm-msm@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 1/7] PM/Domains: Add support for retrieving genpd performance states information
Date: Thu, 17 Oct 2019 12:11:17 -0400	[thread overview]
Message-ID: <5DA892A5.5070007@linaro.org> (raw)
In-Reply-To: <CAPDyKFr76VHypqGxYL-1HS3uu3_KYeO+dGJ7q1Nj=uXiQgY98A@mail.gmail.com>

On 10/17/2019 04:49 AM, Ulf Hansson wrote:
> On Wed, 16 Oct 2019 at 21:37, Thara Gopinath <thara.gopinath@linaro.org> wrote:
>>
>> Add two new APIs in the genpd framework,
>> dev_pm_genpd_get_performance_state to return the current performance
>> state of a power domain and dev_pm_genpd_performance_state_count to
>> return the total number of performance states supported by a
>> power domain. Since the genpd framework does not maintain
>> a count of number of performance states supported by a power domain,
>> introduce a new callback(.get_performance_state_count) that can be used
>> to retrieve this information from power domain drivers.
>>
>> These APIs are added to aid the implementation of a power domain as
>> a warming device. Linux kernel cooling device framework(into which
>> warming device can be plugged in) requires during initialization to be
>> provided with the maximum number of states that can be supported. When
>> a power domain acts as a warming device, the max state is the max number
>> of perfomrance states supported by the power domain. The cooling
>> device framework implements API to retrieve the current state of the
>> cooling device. This in turn translates to the current performance
>> state of the power domain.
>>
>> Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
> 
> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
> 
Thanks Ulf! Do you think this patch be merged separate from the series.
Then I can drop it from the series.

-- 
Warm Regards
Thara

  reply	other threads:[~2019-10-17 16:11 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-16 19:37 [PATCH v3 0/7]Introduce Power domain based warming device driver Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 1/7] PM/Domains: Add support for retrieving genpd performance states information Thara Gopinath
2019-10-17  8:49   ` Ulf Hansson
2019-10-17 16:11     ` Thara Gopinath [this message]
2019-10-16 19:37 ` [PATCH v3 2/7] soc: qcom: rpmhpd: Introduce function to retrieve power domain performance state count Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 3/7] thermal: core: Add late init hook to cooling device ops Thara Gopinath
2019-12-03 17:04   ` Amit Kucheria
2019-12-03 17:09     ` Thara Gopinath
2019-12-03 17:11     ` Amit Kucheria
2019-10-16 19:37 ` [PATCH v3 4/7] thermal: Add generic power domain warming device driver Thara Gopinath
2019-10-17  8:47   ` Ulf Hansson
2019-10-17 15:46     ` Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 5/7] soc: qcom: Extend RPMh power controller driver to register warming devices Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 6/7] dt-bindings: soc: qcom: Extend RPMh power controller binding to describe thermal warming device Thara Gopinath
2019-10-17  9:04   ` Ulf Hansson
2019-10-17 15:28     ` Thara Gopinath
2019-10-17 15:43       ` Ulf Hansson
2019-10-17 16:10         ` Thara Gopinath
2019-10-29  1:36           ` Rob Herring
2019-10-29 10:06             ` Ulf Hansson
2019-10-29 20:16               ` Rob Herring
2019-10-30  9:27                 ` Ulf Hansson
2019-10-30 14:27                 ` Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 7/7] arm64: dts: qcom: Add mx power domain as " Thara Gopinath
2019-10-29  1:31   ` Rob Herring
2019-10-30 14:23     ` Thara Gopinath

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