linux-kernel - Re: [PATCH V2 6/6] thermal: Add DT binding doc for thermal of PMIC max77620

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Date:	Wed, 9 Mar 2016 11:29:00 -0800
From:	Eduardo Valentin <edubezval@...il.com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	rui.zhang@...el.com, robh+dt@...nel.org, mark.rutland@....com,
	corbet@....net, linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, rklein@...dia.com
Subject: Re: [PATCH V2 6/6] thermal: Add DT binding doc for thermal of PMIC
 max77620

On Wed, Mar 09, 2016 at 06:40:10PM +0530, Laxman Dewangan wrote:
> Maxim Semiconductor MAX77620 supports alarm interrupts when
> its die temperature crosses 120C and 140C. These threshold
> temperatures are not configurable.
> 
> Add DT binding document to details out the DT property related
> to MAX77620 thermal functionality.
> 
> Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
> 
> ---
> Changes from V1:
> - New in series to add DT binding doc per V1 review.
> 
>  .../bindings/thermal/thermal-max77620.txt          | 43 ++++++++++++++++++++++
>  1 file changed, 43 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/thermal/thermal-max77620.txt
> 
> diff --git a/Documentation/devicetree/bindings/thermal/thermal-max77620.txt b/Documentation/devicetree/bindings/thermal/thermal-max77620.txt
> new file mode 100644
> index 0000000..d76412f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/thermal/thermal-max77620.txt
> @@ -0,0 +1,43 @@
> +Thermal driver for MAX77620 Power management IC from Maxim Semiconductor.
> +
> +Maxim Semiconductor MAX77620 supports alarm interrupts when its
> +die temperature crosses 120C and 140C. These threshold temperatures
> +are not configurable. Device does not provide the real temperature
> +of die other than just indicating whether temperature is above or
> +below threshold level.
> +
> +Required properties:
> +-------------------
> +#thermal-sensor-cells:	Please refer <devicetree/bindings/thermal/thermal.txt>
> +			for more details.
> +			The value must be 0.
> +
> +For more details, please refer generic thermal DT binding document
> +<devicetree/bindings/thermal/thermal.txt>.
> +
> +Please refer <devicetree/bindings/mfd/max77620.txt> for mfd DT binding
> +document for the MAX77620.
> +
> +Example:
> +--------
> +#include <dt-bindings/mfd/max77620.h>
> +...
> +spmic: max77620@3c {
> +	compatible = "maxim,max77620";
> +
> +	#thermal-sensor-cells = <0>;
> +};
> +
> +thermal-zones {
> +	PMIC-Die {
> +		thermal-sensors = <&spmic>;
> +		trips {
> +			die_temp_thresh: hot-die {
> +				temperature = <120000>;
> +				type = "active";
> +				hysteresis = <0>;
> +			};
> +		};
> +	};
> +};


Considering that this is an example (and people will copy and paste it),
please add all the required DT properties for a thermal-zone node.

> +
> -- 
> 2.1.4
>