[PATCH v3] arm64: dts: mt8183-kukui: Add tboard thermal zones
From: Ben Tseng <hidden>
Date: 2021-06-04 09:38:05
From: Michael Kao <redacted>
Add tboard thermal zones.
The tboard thermal sensors are a kind of NTC sensors which are located
on PCB board to correlate the temperature of the case (Tskin).
pull-up voltage: 1800 mv
pull-up resistor: 75K
Vsense = pull-up voltage * Rntc / ( pull-up resistor + Rntc )
AuxIn = Vsense * 4096 / 1500
Signed-off-by: Michael Kao <redacted>
Signed-off-by: Ben Tseng <redacted>
Tested-by: Hsin-Yi Wang <redacted>
---
Change in v3:
- Modify Tboard to tbaord in mt8183-kukui.dtsi
- Add more description about tboard thermal sensor
Change in v2:
- Rebase to kernel-v5.13-rc1
- Resend
---
arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 14 ++++++++++++++
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 2 +-
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
index ff56bcf..601f866 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi@@ -847,6 +847,20 @@ status = "okay"; }; +&thermal_zones { + tboard1 { + polling-delay = <1000>; /* milliseconds */ + polling-delay-passive = <0>; /* milliseconds */ + thermal-sensors = <&tboard_thermistor1>; + }; + + tboard2 { + polling-delay = <1000>; /* milliseconds */ + polling-delay-passive = <0>; /* milliseconds */ + thermal-sensors = <&tboard_thermistor2>; + }; +}; + &u3phy { status = "okay"; };
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index c5e822b..4173a5d 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi@@ -673,7 +673,7 @@ nvmem-cell-names = "calibration-data"; }; - thermal-zones { + thermal_zones: thermal-zones { cpu_thermal: cpu_thermal { polling-delay-passive = <100>; polling-delay = <500>;
--
1.8.1.1.dirty
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