[PATCH 1/1] arm64: dts: mt8183-kukui: Update Tboard sensor mapping table

Ben Tseng
2021-11-03T03:31:10Z

According to auxadc change the readback value from raw data to Vsense.
Update the tboard table that temperature map to Vsense.

pull-up voltage: 1800 mv
pull-up resistor: 75K

Vsense = pull-up voltage * Rntc / ( pull-up resistor + Rntc )

Signed-off-by: Ben Tseng <ben.tseng@mediatek.com>

---
.../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 108 +++++++++---------
1 file changed, 54 insertions(+), 54 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
index 8e9cf36a9a41..65447de64f06 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
@@ -151,33 +151,33 @@
#thermal-sensor-cells = <0>;
io-channels = <&auxadc 0>;
io-channel-names = "sensor-channel";
- temperature-lookup-table = < (-5000) 4241
- 0 4063
- 5000 3856
- 10000 3621
- 15000 3364
- 20000 3091
- 25000 2810
- 30000 2526
- 35000 2247
- 40000 1982
- 45000 1734
- 50000 1507
- 55000 1305
- 60000 1122
- 65000 964
- 70000 827
- 75000 710
- 80000 606
- 85000 519
- 90000 445
- 95000 382
- 100000 330
- 105000 284
- 110000 245
- 115000 213
- 120000 183
- 125000 161>;
+ temperature-lookup-table = < (-5000) 1553
+ 0 1488
+ 5000 1412
+ 10000 1326
+ 15000 1232
+ 20000 1132
+ 25000 1029
+ 30000 925
+ 35000 823
+ 40000 726
+ 45000 635
+ 50000 552
+ 55000 478
+ 60000 411
+ 65000 353
+ 70000 303
+ 75000 260
+ 80000 222
+ 85000 190
+ 90000 163
+ 95000 140
+ 100000 121
+ 105000 104
+ 110000 90
+ 115000 78
+ 120000 67
+ 125000 59>;
};

tboard_thermistor2: thermal-sensor2 {
@@ -185,33 +185,33 @@
#thermal-sensor-cells = <0>;
io-channels = <&auxadc 1>;
io-channel-names = "sensor-channel";
- temperature-lookup-table = < (-5000) 4241
- 0 4063
- 5000 3856
- 10000 3621
- 15000 3364
- 20000 3091
- 25000 2810
- 30000 2526
- 35000 2247
- 40000 1982
- 45000 1734
- 50000 1507
- 55000 1305
- 60000 1122
- 65000 964
- 70000 827
- 75000 710
- 80000 606
- 85000 519
- 90000 445
- 95000 382
- 100000 330
- 105000 284
- 110000 245
- 115000 213
- 120000 183
- 125000 161>;
+ temperature-lookup-table = < (-5000) 1553
+ 0 1488
+ 5000 1412
+ 10000 1326
+ 15000 1232
+ 20000 1132
+ 25000 1029
+ 30000 925
+ 35000 823
+ 40000 726
+ 45000 635
+ 50000 552
+ 55000 478
+ 60000 411
+ 65000 353
+ 70000 303
+ 75000 260
+ 80000 222
+ 85000 190
+ 90000 163
+ 95000 140
+ 100000 121
+ 105000 104
+ 110000 90
+ 115000 78
+ 120000 67
+ 125000 59>;
};
};

--
2.18.0