This is a note to let you know that I've just added the patch titled
arm64: dts: mediatek: cherry: Add platform thermal configuration
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-mediatek-cherry-add-platform-thermal-confi.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c9dbaf460590f6198b3ba62d475eb4adc18a75cb
Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Date: Mon Apr 24 13:25:20 2023 +0200
arm64: dts: mediatek: cherry: Add platform thermal configuration
[ Upstream commit 729f30eac8bce6783f889cf8390ea869d03407e6 ]
This platform has three auxiliary NTC thermistors, connected to the
SoC's ADC pins. Enable the auxadc in order to be able to read the
ADC values, add a generic-adc-thermal LUT for each and finally assign
them to the SoC's thermal zones.
Tested-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Reviewed-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Reviewed-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230424112523.1436926-2-angelogioacchino.delregno@xxxxxxxxxxxxx
Stable-dep-of: 17b33dd9e4a3 ("arm64: dts: mediatek: cherry: Describe CPU supplies")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 3f508e5c18434..d721ddb230747 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -114,6 +114,77 @@ ppvar_sys: regulator-ppvar-sys {
regulator-boot-on;
};
+ /* Murata NCP03WF104F05RL */
+ tboard_thermistor1: thermal-sensor-t1 {
+ compatible = "generic-adc-thermal";
+ #thermal-sensor-cells = <0>;
+ io-channels = <&auxadc 0>;
+ io-channel-names = "sensor-channel";
+ temperature-lookup-table = < (-10000) 1553
+ (-5000) 1485
+ 0 1406
+ 5000 1317
+ 10000 1219
+ 15000 1115
+ 20000 1007
+ 25000 900
+ 30000 796
+ 35000 697
+ 40000 605
+ 45000 523
+ 50000 449
+ 55000 384
+ 60000 327
+ 65000 279
+ 70000 237
+ 75000 202
+ 80000 172
+ 85000 147
+ 90000 125
+ 95000 107
+ 100000 92
+ 105000 79
+ 110000 68
+ 115000 59
+ 120000 51
+ 125000 44>;
+ };
+
+ tboard_thermistor2: thermal-sensor-t2 {
+ compatible = "generic-adc-thermal";
+ #thermal-sensor-cells = <0>;
+ io-channels = <&auxadc 1>;
+ io-channel-names = "sensor-channel";
+ temperature-lookup-table = < (-10000) 1553
+ (-5000) 1485
+ 0 1406
+ 5000 1317
+ 10000 1219
+ 15000 1115
+ 20000 1007
+ 25000 900
+ 30000 796
+ 35000 697
+ 40000 605
+ 45000 523
+ 50000 449
+ 55000 384
+ 60000 327
+ 65000 279
+ 70000 237
+ 75000 202
+ 80000 172
+ 85000 147
+ 90000 125
+ 95000 107
+ 100000 92
+ 105000 79
+ 110000 68
+ 115000 59
+ 120000 51
+ 125000 44>;
+ };
+
usb_vbus: regulator-5v0-usb-vbus {
compatible = "regulator-fixed";
regulator-name = "usb-vbus";
@@ -176,6 +247,10 @@ &afe {
memory-region = <&afe_mem>;
};
+&auxadc {
+ status = "okay";
+};
+
&dp_intf0 {
status = "okay";
@@ -1127,6 +1202,36 @@ mt6315_7_vbuck1: vbuck1 {
};
};
+&thermal_zones {
+ soc-area-thermal {
+ polling-delay = <1000>;
+ polling-delay-passive = <250>;
+ thermal-sensors = <&tboard_thermistor1>;
+
+ trips {
+ trip-crit {
+ temperature = <84000>;
+ hysteresis = <1000>;
+ type = "critical";
+ };
+ };
+ };
+
+ pmic-area-thermal {
+ polling-delay = <1000>;
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tboard_thermistor2>;
+
+ trips {
+ trip-crit {
+ temperature = <84000>;
+ hysteresis = <1000>;
+ type = "critical";
+ };
+ };
+ };
+};
+
&u3phy0 {
status = "okay";
};
