[PATCH 1/1] arm64: dts: mt8183-kukui: Enable thermal Tboard

[Michael Kao]

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....@mediatek.com>
Signed-off-by: Nicolas Boichat <drink...@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