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    SubjectRe: [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration
    On Thu, Feb 23, 2023 at 10:55 PM AngeloGioacchino Del Regno
    <angelogioacchino.delregno@collabora.com> wrote:
    >
    > 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.
    >
    > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
    > ---
    > .../boot/dts/mediatek/mt8195-cherry.dtsi | 124 ++++++++++++++++++
    > 1 file changed, 124 insertions(+)
    >
    > diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
    > index 24669093fbed..ae2052a7160d 100644
    > --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
    > +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
    > @@ -104,6 +104,108 @@ ppvar_sys: regulator-ppvar-sys {
    > regulator-boot-on;
    > };
    >
    > + 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 = < (-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>;
    > + };
    > +
    > + tboard_thermistor2: thermal-sensor-t2 {
    > + compatible = "generic-adc-thermal";
    > + #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>;
    > + };
    > +
    > + tboard_thermistor3: thermal-sensor-t3 {
    > + compatible = "generic-adc-thermal";
    > + #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>;
    > + };
    > +
    > usb_vbus: regulator-5v0-usb-vbus {
    > compatible = "regulator-fixed";
    > regulator-name = "usb-vbus";
    > @@ -243,6 +345,10 @@ &gpu {
    > mali-supply = <&mt6315_7_vbuck1>;
    > };
    >
    > +&auxadc {
    > + status = "okay";
    > +};
    > +
    > &i2c0 {
    > status = "okay";
    >
    > @@ -1074,6 +1180,24 @@ mt6315_7_vbuck1: vbuck1 {
    > };
    > };
    >
    > +&thermal_zones {
    > + ap_ntc1 {
    > + polling-delay = <1000>;
    > + polling-delay-passive = <0>;
    > + thermal-sensors = <&tboard_thermistor1>;

    Without trip points, this doesn't satisfy the bindings, nor does the
    driver probe.

    > + };
    > + ap_ntc2 {
    > + polling-delay = <1000>;
    > + polling-delay-passive = <0>;
    > + thermal-sensors = <&tboard_thermistor2>;
    > + };
    > + ap_ntc3 {
    > + polling-delay = <1000>;
    > + polling-delay-passive = <0>;
    > + thermal-sensors = <&tboard_thermistor3>;
    > + };
    > +};
    > +
    > &u3phy0 {
    > status = "okay";
    > };
    > --
    > 2.39.2
    >
    >
    > _______________________________________________
    > linux-arm-kernel mailing list
    > linux-arm-kernel@lists.infradead.org
    > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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