linux-kernel - Re: [PATCH V4 2/2] thermal: generic-adc: Add ADC based thermal sensor driver

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Date:	Wed, 20 Apr 2016 16:43:23 -0700
From:	Eduardo Valentin <edubezval@...il.com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	jic23@...nel.org, robh@...nel.org, rui.zhang@...el.com,
	mark.rutland@....com, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-iio@...r.kernel.org
Subject: Re: [PATCH V4 2/2] thermal: generic-adc: Add ADC based thermal
 sensor driver

Laxman,

On Tue, Apr 19, 2016 at 12:52:01PM +0530, Laxman Dewangan wrote:
> In some of platform, thermal sensors like NCT thermistors are
> connected to the one of ADC channel. The temperature is read by
> reading the voltage across the sensor resistance via ADC. Lookup
> table for ADC read value to temperature is referred to get
> temperature. ADC is read via IIO framework.
> 
> Add support for thermal sensor driver which read the voltage across
> sensor resistance from ADC through IIO framework.
> 
> Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>

I really like this driver, as I mentioned  before. Just one comment
though.

> 
> +
> +	gti->tz_dev = thermal_zone_of_sensor_register(&pdev->dev, 0,
> +						      gti, &gadc_thermal_ops);

Why not using the devm_ version you introduced?

Any particular reason?