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* [PATCH v1 0/2] Enable i.MX7 SOLO temperature sensor
@ 2022-01-14 15:18 ` Francesco Dolcini
  0 siblings, 0 replies; 6+ messages in thread
From: Francesco Dolcini @ 2022-01-14 15:18 UTC (permalink / raw)
  To: Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
	Fabio Estevam, NXP Linux Team, Rafael J. Wysocki, Viresh Kumar,
	Matthias Brugger
  Cc: Francesco Dolcini, devicetree, linux-arm-kernel, linux-pm,
	linux-kernel, Marcel Ziswiler, Denys Drozdov, Stefan Agner

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


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [PATCH v1 0/2] Enable i.MX7 SOLO temperature sensor
@ 2022-01-14 15:18 ` Francesco Dolcini
  0 siblings, 0 replies; 6+ messages in thread
From: Francesco Dolcini @ 2022-01-14 15:18 UTC (permalink / raw)
  To: Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
	Fabio Estevam, NXP Linux Team, Rafael J. Wysocki, Viresh Kumar,
	Matthias Brugger
  Cc: Francesco Dolcini, devicetree, linux-arm-kernel, linux-pm,
	linux-kernel, Marcel Ziswiler, Denys Drozdov, Stefan Agner

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


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 6+ messages in thread
* [PATCH v1 1/2] ARM: dts: imx7s: Define operating points table for cpufreq
  2022-01-14 15:18 ` Francesco Dolcini
@ 2022-01-14 15:18   ` Francesco Dolcini
  -1 siblings, 0 replies; 6+ messages in thread
From: Francesco Dolcini @ 2022-01-14 15:18 UTC (permalink / raw)
  To: Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
	Fabio Estevam, NXP Linux Team, Rafael J. Wysocki, Viresh Kumar,
	Matthias Brugger
  Cc: Denys Drozdov, devicetree, linux-arm-kernel, linux-pm,
	linux-kernel, Marcel Ziswiler, Francesco Dolcini

From: Denys Drozdov <denys.drozdov@toradex.com>

Processor operating points for imx7s.dtsi should be properly defined to
perform correct imx-cpufreq-dt probe and registration and provide an
access to the temperature sensors using the i.MX thermal driver.

Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 arch/arm/boot/dts/imx7s.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 52a9aeecdbb2..5af6d58666f4 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -76,6 +76,22 @@ cpu0: cpu@0 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clks IMX7D_CLK_ARM>;
 			cpu-idle-states = <&cpu_sleep_wait>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			#cooling-cells = <2>;
+			nvmem-cells = <&fuse_grade>;
+			nvmem-cell-names = "speed_grade";
+		};
+	};
+
+	cpu0_opp_table: opp-table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-792000000 {
+			opp-hz = /bits/ 64 <792000000>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <150000>;
+			opp-supported-hw = <0xf>, <0xf>;
 		};
 	};
 
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH v1 1/2] ARM: dts: imx7s: Define operating points table for cpufreq
@ 2022-01-14 15:18   ` Francesco Dolcini
  0 siblings, 0 replies; 6+ messages in thread
From: Francesco Dolcini @ 2022-01-14 15:18 UTC (permalink / raw)
  To: Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
	Fabio Estevam, NXP Linux Team, Rafael J. Wysocki, Viresh Kumar,
	Matthias Brugger
  Cc: Denys Drozdov, devicetree, linux-arm-kernel, linux-pm,
	linux-kernel, Marcel Ziswiler, Francesco Dolcini

From: Denys Drozdov <denys.drozdov@toradex.com>

Processor operating points for imx7s.dtsi should be properly defined to
perform correct imx-cpufreq-dt probe and registration and provide an
access to the temperature sensors using the i.MX thermal driver.

Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 arch/arm/boot/dts/imx7s.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 52a9aeecdbb2..5af6d58666f4 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -76,6 +76,22 @@ cpu0: cpu@0 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clks IMX7D_CLK_ARM>;
 			cpu-idle-states = <&cpu_sleep_wait>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			#cooling-cells = <2>;
+			nvmem-cells = <&fuse_grade>;
+			nvmem-cell-names = "speed_grade";
+		};
+	};
+
+	cpu0_opp_table: opp-table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-792000000 {
+			opp-hz = /bits/ 64 <792000000>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <150000>;
+			opp-supported-hw = <0xf>, <0xf>;
 		};
 	};
 
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH v1 2/2] cpufreq: Add i.MX7S to cpufreq-dt-platdev blocklist
  2022-01-14 15:18 ` Francesco Dolcini
@ 2022-01-14 15:18   ` Francesco Dolcini
  -1 siblings, 0 replies; 6+ messages in thread
From: Francesco Dolcini @ 2022-01-14 15:18 UTC (permalink / raw)
  To: Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
	Fabio Estevam, NXP Linux Team, Rafael J. Wysocki, Viresh Kumar,
	Matthias Brugger
  Cc: Stefan Agner, devicetree, linux-arm-kernel, linux-pm,
	linux-kernel, Marcel Ziswiler, Denys Drozdov, Stefan Agner,
	Francesco Dolcini

From: Stefan Agner <stefan.agner@toradex.com>

The i.MX 7Solo currently does not have multiple operating points,
however, in order for the i.MX Thermal driver to successfully probe
a cpufreq device is required. Add it to the cpufreq-dt-platdev
driver's blocklist to allow using imx-cpufreq-dt.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Cc: Stefan Agner <stefan@agner.ch>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 drivers/cpufreq/cpufreq-dt-platdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index ca1d103ec449..2e08f8564a12 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -110,6 +110,8 @@ static const struct of_device_id blocklist[] __initconst = {
 
 	{ .compatible = "fsl,imx7ulp", },
 	{ .compatible = "fsl,imx7d", },
+	{ .compatible = "fsl,imx7s", },
+
 	{ .compatible = "fsl,imx8mq", },
 	{ .compatible = "fsl,imx8mm", },
 	{ .compatible = "fsl,imx8mn", },
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH v1 2/2] cpufreq: Add i.MX7S to cpufreq-dt-platdev blocklist
@ 2022-01-14 15:18   ` Francesco Dolcini
  0 siblings, 0 replies; 6+ messages in thread
From: Francesco Dolcini @ 2022-01-14 15:18 UTC (permalink / raw)
  To: Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
	Fabio Estevam, NXP Linux Team, Rafael J. Wysocki, Viresh Kumar,
	Matthias Brugger
  Cc: Stefan Agner, devicetree, linux-arm-kernel, linux-pm,
	linux-kernel, Marcel Ziswiler, Denys Drozdov, Stefan Agner,
	Francesco Dolcini

From: Stefan Agner <stefan.agner@toradex.com>

The i.MX 7Solo currently does not have multiple operating points,
however, in order for the i.MX Thermal driver to successfully probe
a cpufreq device is required. Add it to the cpufreq-dt-platdev
driver's blocklist to allow using imx-cpufreq-dt.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Cc: Stefan Agner <stefan@agner.ch>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 drivers/cpufreq/cpufreq-dt-platdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index ca1d103ec449..2e08f8564a12 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -110,6 +110,8 @@ static const struct of_device_id blocklist[] __initconst = {
 
 	{ .compatible = "fsl,imx7ulp", },
 	{ .compatible = "fsl,imx7d", },
+	{ .compatible = "fsl,imx7s", },
+
 	{ .compatible = "fsl,imx8mq", },
 	{ .compatible = "fsl,imx8mm", },
 	{ .compatible = "fsl,imx8mn", },
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-01-14 15:21 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-14 15:18 [PATCH v1 0/2] Enable i.MX7 SOLO temperature sensor Francesco Dolcini
2022-01-14 15:18 ` 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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