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From: Neil Armstrong <narmstrong@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	linux-amlogic@lists.infradead.org, khilman@baylibre.com
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/5] ARM: dts: meson: add the ADC thermal sensor to meson.dtsi
Date: Mon, 11 Jan 2021 15:03:22 +0100	[thread overview]
Message-ID: <e5bfa1ec-678d-0c60-bf0b-073c059ba843@baylibre.com> (raw)
In-Reply-To: <20201221181306.904272-3-martin.blumenstingl@googlemail.com>

On 21/12/2020 19:13, Martin Blumenstingl wrote:
> The SoC temperature can be retrieved from ADC channel 8 on all 32-bit
> SoCs (Meson6, Meson8, Meson8b and Meson8m2). Add a "generic-adc-thermal"
> instance to meson.dtsi so the thermal sensor is available for all SoCs.
> If the temperature sensor calibration data is missing for a board then
> the "generic-adc-thermal" will not probe and not register a thermal
> sensor.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  arch/arm/boot/dts/meson.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
> index 5f074f7aa1a2..e0ca5f08d07d 100644
> --- a/arch/arm/boot/dts/meson.dtsi
> +++ b/arch/arm/boot/dts/meson.dtsi
> @@ -298,6 +298,13 @@ efuse: nvmem@0 {
>  		};
>  	};
>  
> +	thermal_sensor: thermal-sensor {
> +		compatible = "generic-adc-thermal";
> +		#thermal-sensor-cells = <0>;
> +		io-channels = <&saradc 8>;
> +		io-channel-names = "sensor-channel";
> +	};
> +
>  	xtal: xtal-clk {
>  		compatible = "fixed-clock";
>  		clock-frequency = <24000000>;
> 

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>

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  reply	other threads:[~2021-01-11 14:03 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-21 18:13 [PATCH 0/5] Thermal zone configuration for Meson8/Meson8b/Meson8m2 Martin Blumenstingl
2020-12-21 18:13 ` [PATCH 1/5] ARM: dts: meson: move iio-hwmon for the SoC temperature to meson.dtsi Martin Blumenstingl
2021-01-11 14:03   ` Neil Armstrong
2020-12-21 18:13 ` [PATCH 2/5] ARM: dts: meson: add the ADC thermal sensor " Martin Blumenstingl
2021-01-11 14:03   ` Neil Armstrong [this message]
2020-12-21 18:13 ` [PATCH 3/5] ARM: dts: meson8: add the thermal-zones with cooling configuration Martin Blumenstingl
2021-01-11 14:04   ` Neil Armstrong
2020-12-21 18:13 ` [PATCH 4/5] ARM: dts: meson8b: " Martin Blumenstingl
2021-01-11 14:04   ` Neil Armstrong
2020-12-21 18:13 ` [PATCH 5/5] ARM: multi_v7_defconfig: Enable support for the ADC thermal sensor Martin Blumenstingl
2021-01-25 18:42 ` [PATCH 0/5] Thermal zone configuration for Meson8/Meson8b/Meson8m2 Kevin Hilman

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