From e9ced25e41588a2ff95280b4d3dabf3a0865513b Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Mon, 21 Dec 2020 19:13:02 +0100 Subject: ARM: dts: meson: move iio-hwmon for the SoC temperature to meson.dtsi The SoC temperature can be retrieved from ADC channel 8 on all 32-bit SoCs (Meson6, Meson8, Meson8b and Meson8m2). Move the iio-hwmon instance to meson.dtsi instead of duplicating it in all board.dts. If the temperature sensor calibration data is missing for a board then iio-hwmon will simply not probe. Signed-off-by: Martin Blumenstingl Reviewed-by: Neil Armstrong Signed-off-by: Kevin Hilman Link: https://lore.kernel.org/r/20201221181306.904272-2-martin.blumenstingl@googlemail.com --- arch/arm/boot/dts/meson.dtsi | 5 +++++ arch/arm/boot/dts/meson8b-ec100.dts | 5 ----- arch/arm/boot/dts/meson8b-mxq.dts | 5 ----- arch/arm/boot/dts/meson8b-odroidc1.dts | 5 ----- arch/arm/boot/dts/meson8m2-mxiii-plus.dts | 5 ----- 5 files changed, 5 insertions(+), 20 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 7649dd1e0b9e..5f074f7aa1a2 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -11,6 +11,11 @@ #size-cells = <1>; interrupt-parent = <&gic>; + iio-hwmon { + compatible = "iio-hwmon"; + io-channels = <&saradc 8>; + }; + soc { compatible = "simple-bus"; #address-cells = <1>; diff --git a/arch/arm/boot/dts/meson8b-ec100.dts b/arch/arm/boot/dts/meson8b-ec100.dts index ed06102a4014..8e48ccc6b634 100644 --- a/arch/arm/boot/dts/meson8b-ec100.dts +++ b/arch/arm/boot/dts/meson8b-ec100.dts @@ -70,11 +70,6 @@ timeout-ms = <20000>; }; - iio-hwmon { - compatible = "iio-hwmon"; - io-channels = <&saradc 8>; - }; - leds { compatible = "gpio-leds"; diff --git a/arch/arm/boot/dts/meson8b-mxq.dts b/arch/arm/boot/dts/meson8b-mxq.dts index 33037ef62d0a..f3937d55472d 100644 --- a/arch/arm/boot/dts/meson8b-mxq.dts +++ b/arch/arm/boot/dts/meson8b-mxq.dts @@ -27,11 +27,6 @@ reg = <0x40000000 0x40000000>; }; - iio-hwmon { - compatible = "iio-hwmon"; - io-channels = <&saradc 8>; - }; - vcck: regulator-vcck { compatible = "pwm-regulator"; diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts index 5963566dbcc9..c440ef94e082 100644 --- a/arch/arm/boot/dts/meson8b-odroidc1.dts +++ b/arch/arm/boot/dts/meson8b-odroidc1.dts @@ -85,11 +85,6 @@ 1800000 1>; }; - iio-hwmon { - compatible = "iio-hwmon"; - io-channels = <&saradc 8>; - }; - rtc32k_xtal: rtc32k-xtal-clk { /* X3 in the schematics */ compatible = "fixed-clock"; diff --git a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts index 8f4eb1ed4581..fa6d55f1cfb9 100644 --- a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts +++ b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts @@ -45,11 +45,6 @@ }; }; - iio-hwmon { - compatible = "iio-hwmon"; - io-channels = <&saradc 8>; - }; - vcc_3v3: regulator-vcc3v3 { compatible = "regulator-fixed"; regulator-name = "VCC3V3"; -- cgit v1.2.3 From c8559511107120403f7810428f50fc68fd77ed5a Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Mon, 21 Dec 2020 19:13:03 +0100 Subject: ARM: dts: meson: add the ADC thermal sensor to meson.dtsi The SoC temperature can be retrieved from ADC channel 8 on all 32-bit SoCs (Meson6, Meson8, Meson8b and Meson8m2). Add a "generic-adc-thermal" instance to meson.dtsi so the thermal sensor is available for all SoCs. If the temperature sensor calibration data is missing for a board then the "generic-adc-thermal" will not probe and not register a thermal sensor. Signed-off-by: Martin Blumenstingl Reviewed-by: Neil Armstrong Signed-off-by: Kevin Hilman Link: https://lore.kernel.org/r/20201221181306.904272-3-martin.blumenstingl@googlemail.com --- arch/arm/boot/dts/meson.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 5f074f7aa1a2..e0ca5f08d07d 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -298,6 +298,13 @@ }; }; + thermal_sensor: thermal-sensor { + compatible = "generic-adc-thermal"; + #thermal-sensor-cells = <0>; + io-channels = <&saradc 8>; + io-channel-names = "sensor-channel"; + }; + xtal: xtal-clk { compatible = "fixed-clock"; clock-frequency = <24000000>; -- cgit v1.2.3 From ecdb744b1f819949f783508331ff6ff8a6a45730 Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Mon, 21 Dec 2020 19:13:04 +0100 Subject: ARM: dts: meson8: add the thermal-zones with cooling configuration MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The vendor kernel uses the following thermal-zone settings: <= 70°C: - CPU frequency limited to 1.608GHz - GPU limited to 511MHz and 5 cores (pixel processors) <= 80°C: - CPU frequency limited to 1.2GHz - GPU limited to 435MHz and 4 cores (pixel processors) <= 90°C: - CPU frequency limited to 0.804GHz - GPU limited to 328MHz and 3 cores (pixel processors) Add simplified thermal configuration which is taken from the GXBB/GXL/GXM SoC family (which uses the same manufacturing process and has the same maximum junction temperature of 125°C). With this the thermal framework will try to keep the SoC temperature at or below 80°C which is identical to the vendor kernel (with the exception of one GPU pixel processor). The number of GPU cores are not taken into account as this is not supported. Signed-off-by: Martin Blumenstingl Reviewed-by: Neil Armstrong Signed-off-by: Kevin Hilman Link: https://lore.kernel.org/r/20201221181306.904272-4-martin.blumenstingl@googlemail.com --- arch/arm/boot/dts/meson8.dtsi | 54 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi index 04688e8abce2..420324ea2ad7 100644 --- a/arch/arm/boot/dts/meson8.dtsi +++ b/arch/arm/boot/dts/meson8.dtsi @@ -9,6 +9,7 @@ #include #include #include +#include #include "meson.dtsi" / { @@ -28,6 +29,7 @@ resets = <&clkc CLKC_RESET_CPU0_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; cpu1: cpu@201 { @@ -39,6 +41,7 @@ resets = <&clkc CLKC_RESET_CPU1_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; cpu2: cpu@202 { @@ -50,6 +53,7 @@ resets = <&clkc CLKC_RESET_CPU2_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; cpu3: cpu@203 { @@ -61,6 +65,7 @@ resets = <&clkc CLKC_RESET_CPU3_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; }; @@ -190,6 +195,54 @@ }; }; + thermal-zones { + soc { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <1000>; /* milliseconds */ + thermal-sensors = <&thermal_sensor>; + + cooling-maps { + map0 { + trip = <&soc_passive>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + + map1 { + trip = <&soc_hot>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + + trips { + soc_passive: soc-passive { + temperature = <80000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "passive"; + }; + + soc_hot: soc-hot { + temperature = <90000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "hot"; + }; + + soc_critical: soc-critical { + temperature = <110000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "critical"; + }; + }; + }; + }; + mmcbus: bus@c8000000 { compatible = "simple-bus"; reg = <0xc8000000 0x8000>; @@ -254,6 +307,7 @@ clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>; clock-names = "bus", "core"; operating-points-v2 = <&gpu_opp_table>; + #cooling-cells = <2>; /* min followed by max */ }; }; }; /* end of / */ -- cgit v1.2.3 From 9073f694efd8733b0e7c97d3396d81161bd05582 Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Mon, 21 Dec 2020 19:13:05 +0100 Subject: ARM: dts: meson8b: add the thermal-zones with cooling configuration MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The vendor kernel uses the following thermal-zone settings: <= 70°C: - CPU frequency limited to 1.488GHz - GPU limited to 511MHz and 2 cores (pixel processors) <= 80°C: - CPU frequency limited to 1.2GHz - GPU limited to 435MHz and 2 cores (pixel processors) <= 90°C: - CPU frequency limited to 0.804GHz - GPU limited to 328MHz and 1 core (pixel processor) Add simplified thermal configuration which is taken from the GXBB/GXL/GXM SoC family (which uses the same manufacturing process and has the same maximum junction temperature of 125°C). With this the thermal framework will try to keep the SoC temperature at or below 80°C which is identical to the vendor kernel (with the exception of one CPU frequency step from 1.488GHz to 1.536GHz). The number of GPU cores are not taken into account as this is not supported. Signed-off-by: Martin Blumenstingl Reviewed-by: Neil Armstrong Signed-off-by: Kevin Hilman Link: https://lore.kernel.org/r/20201221181306.904272-5-martin.blumenstingl@googlemail.com --- arch/arm/boot/dts/meson8b.dtsi | 54 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi index 2401cdf5f751..dbf7963b6c87 100644 --- a/arch/arm/boot/dts/meson8b.dtsi +++ b/arch/arm/boot/dts/meson8b.dtsi @@ -10,6 +10,7 @@ #include #include #include +#include #include "meson.dtsi" / { @@ -26,6 +27,7 @@ resets = <&clkc CLKC_RESET_CPU0_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; cpu1: cpu@201 { @@ -37,6 +39,7 @@ resets = <&clkc CLKC_RESET_CPU1_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; cpu2: cpu@202 { @@ -48,6 +51,7 @@ resets = <&clkc CLKC_RESET_CPU2_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; cpu3: cpu@203 { @@ -59,6 +63,7 @@ resets = <&clkc CLKC_RESET_CPU3_SOFT_RESET>; operating-points-v2 = <&cpu_opp_table>; clocks = <&clkc CLKID_CPUCLK>; + #cooling-cells = <2>; /* min followed by max */ }; }; @@ -167,6 +172,54 @@ }; }; + thermal-zones { + soc { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <1000>; /* milliseconds */ + thermal-sensors = <&thermal_sensor>; + + cooling-maps { + map0 { + trip = <&soc_passive>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + + map1 { + trip = <&soc_hot>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + + trips { + soc_passive: soc-passive { + temperature = <80000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "passive"; + }; + + soc_hot: soc-hot { + temperature = <90000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "hot"; + }; + + soc_critical: soc-critical { + temperature = <110000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "critical"; + }; + }; + }; + }; + mmcbus: bus@c8000000 { compatible = "simple-bus"; reg = <0xc8000000 0x8000>; @@ -221,6 +274,7 @@ clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>; clock-names = "bus", "core"; operating-points-v2 = <&gpu_opp_table>; + #cooling-cells = <2>; /* min followed by max */ }; }; }; /* end of / */ -- cgit v1.2.3