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From: Luca Weiss <luca@z3ntu.xyz>
To: linux-kernel@vger.kernel.org
Cc: Brian Masney <masneyb@onstation.org>,
	Amit Kucheria <amit.kucheria@linaro.org>,
	linux-arm-msm <linux-arm-msm@vger.kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Eduardo Valentin <edubezval@gmail.com>,
	Andy Gross <andy.gross@linaro.org>,
	Andy Gross <agross@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Rob Herring <robh+dt@kernel.org>, Zhang Rui <rui.zhang@intel.com>,
	Marc Gonzalez <marc.w.gonzalez@free.fr>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	Linux PM list <linux-pm@vger.kernel.org>
Subject: Re: [PATCH 00/15] thermal: qcom: tsens: Add interrupt support
Date: Mon, 29 Jul 2019 11:32:52 +0200
Message-ID: <2123341.TWUfUUIiFt@g550jk> (raw)
In-Reply-To: <20190729090735.GA897@onstation.org>


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On Montag, 29. Juli 2019 11:07:35 CEST Brian Masney wrote:
> On Sat, Jul 27, 2019 at 12:58:54PM +0530, Amit Kucheria wrote:
> > On Fri, Jul 26, 2019 at 4:59 PM Brian Masney <masneyb@onstation.org> wrote:
> > > On Fri, Jul 26, 2019 at 04:40:16PM +0530, Amit Kucheria wrote:
> > > > How well does cpufreq work on 8974? I haven't looked at it yet but
> > > > we'll need it for thermal throttling.
> > > 
> > > I'm not sure how to tell if the frequency is dynamically changed during
> > > runtime on arm. x86-64 shows this information in /proc/cpuinfo. Here's
> > 
> > > the /proc/cpuinfo on the Nexus 5:
> > Nah. /proc/cpuinfo won't show what we need.
> > 
> > Try the following:
> > 
> > $ grep "" /sys/devices/system/cpu/cpufreq/policy?/*
> > 
> > More specifically, the following files have the information you need.
> > Run watch -n1 on them.
> > 
> > $ grep "" /sys/devices/system/cpu/cpufreq/policy?/scaling_*_freq
> 
> There's no cpufreq directory on msm8974:
> 
>     # ls -1 /sys/devices/system/cpu/
>     cpu0
>     cpu1
>     cpu2
>     cpu3
>     cpuidle
>     hotplug
>     isolated
>     kernel_max
>     modalias
>     offline
>     online
>     possible
>     power
>     present
>     smt
>     uevent
> 
> I'm using qcom_defconfig.
> 
> Brian

Hi Brian,
cpufreq isn't supported on msm8974 yet.
I have these patches [0] in my tree but I'm not sure they work correctly, but I haven't tested much with them. Feel free to try them on hammerhead.

Luca

[0] https://github.com/z3ntu/linux/compare/b0917f53ada0e929896a094b451219cd8091366e...6459ca6aff498c9d12acd35709b4903effc4c3f8

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  reply index

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-25 22:18 Amit Kucheria
2019-07-25 22:18 ` [PATCH 01/15] drivers: thermal: tsens: Get rid of id field in tsens_sensor Amit Kucheria
2019-08-17  4:01   ` Stephen Boyd
2019-08-19 11:55   ` Daniel Lezcano
2019-07-25 22:18 ` [PATCH 02/15] drivers: thermal: tsens: Simplify code flow in tsens_probe Amit Kucheria
2019-08-17  4:02   ` Stephen Boyd
2019-08-19 11:57   ` Daniel Lezcano
2019-07-25 22:18 ` [PATCH 03/15] drivers: thermal: tsens: Add __func__ identifier to debug statements Amit Kucheria
2019-08-17  4:03   ` Stephen Boyd
2019-08-19 13:19   ` Daniel Lezcano
2019-07-25 22:18 ` [PATCH 04/15] drivers: thermal: tsens: Add debugfs support Amit Kucheria
2019-08-17  4:07   ` Stephen Boyd
2019-08-19  7:58     ` Amit Kucheria
2019-08-19 14:27       ` Stephen Boyd
2019-08-21 12:55         ` Amit Kucheria
2019-08-26 20:55           ` Stephen Boyd
2019-07-25 22:18 ` [PATCH 05/15] arm: dts: msm8974: thermal: Add thermal zones for each sensor Amit Kucheria
2019-08-08 20:49   ` Brian Masney
2019-07-25 22:18 ` [PATCH 06/15] arm64: dts: msm8916: thermal: Fixup HW ids for cpu sensors Amit Kucheria
2019-08-13 13:25   ` Daniel Lezcano
2019-07-25 22:18 ` [PATCH 07/15] dt: thermal: tsens: Document interrupt support in tsens driver Amit Kucheria
2019-08-16 21:36   ` Rob Herring
2019-08-16 22:02     ` Amit Kucheria
2019-08-17  4:10       ` Stephen Boyd
2019-08-17 19:25       ` Rob Herring
2019-08-19  7:10         ` Amit Kucheria
2019-08-19 13:07           ` Rob Herring
2019-07-25 22:18 ` [PATCH 08/15] arm64: dts: sdm845: thermal: Add interrupt support Amit Kucheria
2019-07-25 22:18 ` [PATCH 09/15] arm64: dts: msm8996: " Amit Kucheria
2019-07-25 22:18 ` [PATCH 10/15] arm64: dts: msm8998: " Amit Kucheria
2019-07-25 22:18 ` [PATCH 11/15] arm64: dts: qcs404: " Amit Kucheria
2019-07-25 22:18 ` [PATCH 12/15] arm64: dts: msm8974: " Amit Kucheria
2019-07-29  9:03   ` Luca Weiss
2019-07-29  9:29     ` Amit Kucheria
2019-08-08 20:49   ` Brian Masney
2019-07-25 22:18 ` [PATCH 13/15] arm64: dts: msm8916: " Amit Kucheria
2019-07-25 22:18 ` [PATCH 14/15] drivers: thermal: tsens: Create function to return sign-extended temperature Amit Kucheria
2019-08-17  4:16   ` Stephen Boyd
2019-08-19 20:51     ` Amit Kucheria
2019-07-25 22:18 ` [PATCH 15/15] drivers: thermal: tsens: Add interrupt support Amit Kucheria
2019-08-17  6:09   ` Stephen Boyd
2019-08-22 13:40     ` Amit Kucheria
2019-07-26 10:36 ` [PATCH 00/15] thermal: qcom: " Brian Masney
2019-07-26 11:10   ` Amit Kucheria
2019-07-26 11:29     ` Brian Masney
2019-07-27  7:28       ` Amit Kucheria
2019-07-29  9:07         ` Brian Masney
2019-07-29  9:32           ` Luca Weiss [this message]
2019-07-29  9:50             ` Amit Kucheria
2019-08-12 15:28               ` Niklas Cassel
2019-08-08 13:04 ` Amit Kucheria
2019-10-16  7:33 Amit Kucheria
2019-10-16  7:59 ` Daniel Lezcano
2019-10-16  8:35   ` Amit Kucheria
2019-10-16  8:46     ` Daniel Lezcano

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