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Date:   Fri, 31 Aug 2018 11:14:05 +0200
From:   Maxime Ripard <maxime.ripard@bootlin.com>
To:     Philipp Rossak <embed3d@gmail.com>
Cc:     lee.jones@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com,
        wens@csie.org, linux@armlinux.org.uk, jic23@kernel.org,
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        vilhelm.gray@gmail.com, clabbe.montjoie@gmail.com,
        quentin.schulz@bootlin.com, geert+renesas@glider.be,
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Subject: Re: [PATCH v3 25/30] ARM: dts: sun8i: h3: add thermal zone to H3
Message-ID: <20180831091405.qr5daepgmx3otq7m@flea>
References: <20180830154518.29507-1-embed3d@gmail.com>
 <20180830154518.29507-26-embed3d@gmail.com>
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On Thu, Aug 30, 2018 at 05:45:13PM +0200, Philipp Rossak wrote:
> This patch adds the thermal zones to the H3. We have only one sensor and
> that is placed in the cpu.
>=20
> Signed-off-by: Philipp Rossak <embed3d@gmail.com>
> ---
>  arch/arm/boot/dts/sun8i-h3.dtsi    | 31 +++++++++++++++++++++++++++++++
>  arch/arm/boot/dts/sunxi-h3-h5.dtsi |  1 +
>  2 files changed, 32 insertions(+)
>=20
> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3=
=2Edtsi
> index 5b7994cb1471..954848d5df50 100644
> --- a/arch/arm/boot/dts/sun8i-h3.dtsi
> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
> @@ -78,6 +78,8 @@
>  			clock-names =3D "cpu";
>  			operating-points-v2 =3D <&cpu0_opp_table>;
>  			#cooling-cells =3D <2>;
> +			cooling-min-level =3D <0>;
> +			cooling-max-level =3D <15>;
>  		};
> =20
>  		cpu@1 {
> @@ -102,6 +104,35 @@
>  		};
>  	};
> =20
> +	thermal-zones {
> +		cpu-thermal {
> +			/* milliseconds */
> +			polling-delay-passive =3D <250>;
> +			polling-delay =3D <1000>;
> +			thermal-sensors =3D <&ths>;
> +
> +			trips {
> +				cpu_hot_trip: cpu-warm {
> +					temperature =3D <65000>;
> +					hysteresis =3D <2000>;
> +					type =3D "passive";
> +				};
> +				cpu_very_hot_trip: cpu-very-hot {
> +					temperature =3D <90000>;
> +					hysteresis =3D <2000>;
> +					type =3D "critical";
> +				};
> +			};

Where are those trip points coming from?

Maxime

--=20
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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