[PATCH v2 2/2] riscv: dts: thead: th1520: add coefficients to the PVT node

Drew Fustini fustini at kernel.org
Sun Mar 8 10:09:15 PDT 2026


On Thu, Mar 05, 2026 at 10:40:44PM +0800, Icenowy Zheng wrote:
> The manual of TH1520 contains a set of coefficients a little different
> to the driver default ones.
> 
> Add them to the device tree node of PVT.
> 
> Signed-off-by: Icenowy Zheng <uwu at icenowy.me>
> Signed-off-by: Icenowy Zheng <zhengxingda at iscas.ac.cn>
> ---
> No changes in v2.
> 
>  arch/riscv/boot/dts/thead/th1520.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
> index bd5d33840884e..2160c8b6c2261 100644
> --- a/arch/riscv/boot/dts/thead/th1520.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520.dtsi
> @@ -753,6 +753,10 @@ pvt: pvt at fffff4e000 {
>  			reg-names = "common", "ts", "pd", "vm";
>  			clocks = <&aonsys_clk>;
>  			#thermal-sensor-cells = <1>;
> +			moortec,ts-coeff-g = <42740>;
> +			moortec,ts-coeff-h = <220500>;
> +			moortec,ts-coeff-j = <(-160)>;
> +			moortec,ts-coeff-cal5 = <4094>;
>  		};
>  
>  		gpio at fffff52000 {
> -- 
> 2.52.0
> 

Thanks for the patch. This matches the information in "Section 15.3.4
Temperature Sensor" on page 866 in the TH1520 System User Manul.

Reviewed-by: Drew Fustini <fustini at kernel.org>



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