linux-kernel - Re: [PATCH 1/4] arm64: tegra: Add BPMP thermal sensor to Tegra186

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Message-ID: <20170630235603.GA2943@localhost.localdomain>
Date:   Fri, 30 Jun 2017 16:56:05 -0700
From:   Eduardo Valentin <edubezval@...il.com>
To:     Mikko Perttunen <mperttunen@...dia.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, rui.zhang@...el.com,
        thierry.reding@...il.com, jonathanh@...dia.com,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] arm64: tegra: Add BPMP thermal sensor to Tegra186

On Fri, Jun 16, 2017 at 02:28:22PM +0300, Mikko Perttunen wrote:
> This adds the thermal sensor device provided by the BPMP, and the
> relevant thermal sensors to the Tegra186 device tree.
> 
> Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
> ---
>  arch/arm64/boot/dts/nvidia/tegra186.dtsi | 48 ++++++++++++++++++++++++++++++++
>  1 file changed, 48 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> index 5e62e68ac053..5c19ea74da24 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> @@ -4,6 +4,7 @@
>  #include <dt-bindings/mailbox/tegra186-hsp.h>
>  #include <dt-bindings/power/tegra186-powergate.h>
>  #include <dt-bindings/reset/tegra186-reset.h>
> +#include <dt-bindings/thermal/tegra186-bpmp-thermal.h>
>  
>  / {
>  	compatible = "nvidia,tegra186";
> @@ -444,6 +445,53 @@
>  			#size-cells = <0>;
>  			status = "disabled";
>  		};
> +
> +		bpmp_thermal: thermal {
> +			compatible = "nvidia,tegra186-bpmp-thermal";
> +			#thermal-sensor-cells = <1>;
> +		};
> +	};
> +
> +	thermal-zones {
> +		a57 {
> +			polling-delay = <0>;
> +			polling-delay-passive = <1000>;
> +
> +			thermal-sensors =
> +				<&bpmp_thermal TEGRA186_BPMP_THERMAL_ZONE_CPU>;
> +		};
> +
> +		denver {
> +			polling-delay = <0>;
> +			polling-delay-passive = <1000>;
> +
> +			thermal-sensors =
> +				<&bpmp_thermal TEGRA186_BPMP_THERMAL_ZONE_AUX>;
> +		};
> +
> +		gpu {
> +			polling-delay = <0>;
> +			polling-delay-passive = <1000>;
> +
> +			thermal-sensors =
> +				<&bpmp_thermal TEGRA186_BPMP_THERMAL_ZONE_GPU>;
> +		};
> +
> +		pll {
> +			polling-delay = <0>;
> +			polling-delay-passive = <1000>;
> +
> +			thermal-sensors =
> +				<&bpmp_thermal TEGRA186_BPMP_THERMAL_ZONE_PLLX>;
> +		};
> +
> +		always_on {
> +			polling-delay = <0>;
> +			polling-delay-passive = <1000>;
> +
> +			thermal-sensors =
> +				<&bpmp_thermal TEGRA186_BPMP_THERMAL_ZONE_AO>;
> +		};

All the above zones are lacking mandatory fields. Please refer to the
thermal binding documentation. 

>  	};
>  
>  	timer {
> -- 
> 2.13.1
>