On 04/06/2021 11:37, Ben Tseng wrote:
> From: Michael Kao <michael.kao@xxxxxxxxxxxx>
>
> 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 <michael.kao@xxxxxxxxxxxx>
> Signed-off-by: Ben Tseng <ben.tseng@xxxxxxxxxxxx>
> Tested-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx>
>
Applied to v5.13-next/dts64
Thanks!
> ---
> 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>;
>
