iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arm64: dts: mediatek: cherry: Add platform thermal configuration

Browse Source 
[ 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@chromium.org>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230424112523.1436926-2-angelogioacchino.delregno@collabora.com
Stable-dep-of: 17b33dd9e4a3 ("arm64: dts: mediatek: cherry: Describe CPU supplies")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
AngeloGioacchino Del Regno 2023-04-24 13:25:20 +02:00 committed by Greg Kroah-Hartman
parent 2928d2baf2
commit a61f1a5799
1 changed files with 105 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

105
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
View File

@ -114,6 +114,77 @@
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 @@
memory-region = <&afe_mem>;
};
&auxadc {
status = "okay";
};
&dp_intf0 {
status = "okay";
@ -1127,6 +1202,36 @@
};
};
&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";
};