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From: Francesco Dolcini <francesco.dolcini@toradex.com>
To: Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Marcel Ziswiler <marcel.ziswiler@toradex.com>,
	Denys Drozdov <denys.drozdov@toradex.com>,
	Stefan Agner <stefan@agner.ch>
Subject: [PATCH v1 0/2] Enable i.MX7 SOLO temperature sensor
Date: Fri, 14 Jan 2022 16:18:45 +0100	[thread overview]
Message-ID: <20220114151847.290518-1-francesco.dolcini@toradex.com> (raw)

To be able to read the T junction on i.MX CPU the imx-cpufreq-dt needs to be
loaded, however this is currently not the case for i.MX7S given that it does
have only one operating frequency.

Add "fsl,imx7s" to cpufreq-dt-platdev blocklist and a single frequency
operating point to the CPU.

With that it is now possible to correctly read the CPU T junction.

Tested on Toradex Colibri iMX7S

[    6.232577] imx-cpufreq-dt imx-cpufreq-dt: cpu speed grade 0 mkt segment 1 supported-hw 0x1 0x2
...
[    6.880624] imx_thermal 30360000.anatop:tempmon: Extended Commercial CPU temperature grade - max:105C critical:100C passive:95C

root@colibri-imx7-02983025:~# cat /sys/class/thermal/thermal_zone0/temp 
38000


Denys Drozdov (1):
  ARM: dts: imx7s: Define operating points table for cpufreq

Stefan Agner (1):
  cpufreq: Add i.MX7S to cpufreq-dt-platdev blocklist

 arch/arm/boot/dts/imx7s.dtsi         | 16 ++++++++++++++++
 drivers/cpufreq/cpufreq-dt-platdev.c |  2 ++
 2 files changed, 18 insertions(+)

-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Francesco Dolcini <francesco.dolcini@toradex.com>
To: Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Marcel Ziswiler <marcel.ziswiler@toradex.com>,
	Denys Drozdov <denys.drozdov@toradex.com>,
	Stefan Agner <stefan@agner.ch>
Subject: [PATCH v1 0/2] Enable i.MX7 SOLO temperature sensor
Date: Fri, 14 Jan 2022 16:18:45 +0100	[thread overview]
Message-ID: <20220114151847.290518-1-francesco.dolcini@toradex.com> (raw)

To be able to read the T junction on i.MX CPU the imx-cpufreq-dt needs to be
loaded, however this is currently not the case for i.MX7S given that it does
have only one operating frequency.

Add "fsl,imx7s" to cpufreq-dt-platdev blocklist and a single frequency
operating point to the CPU.

With that it is now possible to correctly read the CPU T junction.

Tested on Toradex Colibri iMX7S

[    6.232577] imx-cpufreq-dt imx-cpufreq-dt: cpu speed grade 0 mkt segment 1 supported-hw 0x1 0x2
...
[    6.880624] imx_thermal 30360000.anatop:tempmon: Extended Commercial CPU temperature grade - max:105C critical:100C passive:95C

root@colibri-imx7-02983025:~# cat /sys/class/thermal/thermal_zone0/temp 
38000


Denys Drozdov (1):
  ARM: dts: imx7s: Define operating points table for cpufreq

Stefan Agner (1):
  cpufreq: Add i.MX7S to cpufreq-dt-platdev blocklist

 arch/arm/boot/dts/imx7s.dtsi         | 16 ++++++++++++++++
 drivers/cpufreq/cpufreq-dt-platdev.c |  2 ++
 2 files changed, 18 insertions(+)

-- 
2.25.1


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             reply	other threads:[~2022-01-14 15:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-14 15:18 Francesco Dolcini [this message]
2022-01-14 15:18 ` [PATCH v1 0/2] Enable i.MX7 SOLO temperature sensor Francesco Dolcini
2022-01-14 15:18 ` [PATCH v1 1/2] ARM: dts: imx7s: Define operating points table for cpufreq Francesco Dolcini
2022-01-14 15:18   ` Francesco Dolcini
2022-01-14 15:18 ` [PATCH v1 2/2] cpufreq: Add i.MX7S to cpufreq-dt-platdev blocklist Francesco Dolcini
2022-01-14 15:18   ` Francesco Dolcini

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