linux-kernel - Re: [PATCH v6 3/3] riscv: dts: allwinner: d1: Add thermal sensor

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Date: Mon, 18 Dec 2023 01:09:26 +0000
From: Andre Przywara <andre.przywara@....com>
To: Maksim Kiselev <bigunclemax@...il.com>
Cc: Vasily Khoruzhick <anarsoul@...il.com>, Yangtao Li
 <tiny.windzz@...il.com>, "Rafael J. Wysocki" <rafael@...nel.org>, Daniel
 Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>,
 Lukasz Luba <lukasz.luba@....com>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley
 <conor+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec
 <jernej.skrabec@...il.com>, Samuel Holland <samuel@...lland.org>, Paul
 Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>,
 Albert Ou <aou@...s.berkeley.edu>, Marc Kleine-Budde <mkl@...gutronix.de>,
 John Watts <contact@...kia.org>, Cristian Ciocaltea
 <cristian.ciocaltea@...labora.com>, linux-pm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
 linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v6 3/3] riscv: dts: allwinner: d1: Add thermal sensor

On Mon, 18 Dec 2023 00:06:24 +0300
Maksim Kiselev <bigunclemax@...il.com> wrote:

Hi,

> From: Maxim Kiselev <bigunclemax@...il.com>
> 
> This patch adds a thermal sensor controller node for the D1/T113s.
> Also it adds a THS calibration data cell to efuse node.
> 
> Signed-off-by: Maxim Kiselev <bigunclemax@...il.com>
> ---
>  .../boot/dts/allwinner/sunxi-d1s-t113.dtsi      | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
> index 5a9d7f5a75b4..6f5427d9cfbf 100644
> --- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
> +++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
> @@ -166,6 +166,19 @@ gpadc: adc@...9000 {
>  			#io-channel-cells = <1>;
>  		};
>  
> +		ths: thermal-sensor@...9400 {
> +			compatible = "allwinner,sun20i-d1-ths";
> +			reg = <0x02009400 0x400>;
> +			interrupts = <SOC_PERIPHERAL_IRQ(58) IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_THS>;
> +			clock-names = "bus";
> +			resets = <&ccu RST_BUS_THS>;
> +			nvmem-cells = <&ths_calibration>;
> +			nvmem-cell-names = "calibration";
> +			status = "disabled";

Any reason this is disabled? We typically don't disable those internal
devices in the SoC .dtsi, the THS is one example (check the instances
in other SoCs' .dtsi files).

The rest looks alright, compared to the manual, so with this line
removed:

Reviewed-by: Andre Przywara <andre.przywara@....com>

Cheers,
Andre

> +			#thermal-sensor-cells = <0>;
> +		};
> +
>  		dmic: dmic@...1000 {
>  			compatible = "allwinner,sun20i-d1-dmic",
>  				     "allwinner,sun50i-h6-dmic";
> @@ -415,6 +428,10 @@ sid: efuse@...6000 {
>  			reg = <0x3006000 0x1000>;
>  			#address-cells = <1>;
>  			#size-cells = <1>;
> +
> +			ths_calibration: thermal-sensor-calibration@14 {
> +				reg = <0x14 0x4>;
> +			};
>  		};
>  
>  		crypto: crypto@...0000 {