From: Michael Kao <michael.kao@mediatek.com>
To: <michael.kao@mediatek.com>, <fan.chen@mediatek.com>,
Zhang Rui <rui.zhang@intel.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
<linux-pm@vger.kernel.org>, <srv_heupstream@mediatek.com>
Cc: Eduardo Valentin <edubezval@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>, <hsinyi@chromium.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>
Subject: [PATCH 1/1] arm64: dts: mt8183-kukui: Enable thermal Tboard
Date: Fri, 9 Apr 2021 15:11:58 +0800 [thread overview]
Message-ID: <20210409071158.2346-1-michael.kao@mediatek.com> (raw)
Add Tboard thermal sensor settings.
pull-up voltage: 1800 mv
pull-up resistor: 75K
Vsense = pull-up voltage * Rntc / ( pull-up resistor + Rntc )
AuxIn = Vsense * 4096 / 1500
TEST=boot kukui
check /sys/class/thermal/thermal_zone*/type
check /sys/class/thermal/thermal_zone*/temp
Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
---
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 bf2ad1294dd3..202acb542b12 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
@@ -801,6 +801,20 @@
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 1ad0a1d55d53..f0719dbef249 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>;
--
2.18.0
next reply other threads:[~2021-04-09 7:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 7:11 Michael Kao [this message]
2021-04-09 7:16 ` [PATCH 1/1] arm64: dts: mt8183-kukui: Enable thermal Tboard Hsin-Yi Wang
2021-05-06 5:11 ` Michael Kao
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