linux-kernel - Re: [PATCHv6 02/16] drivers: thermal: introduce device tree parser

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Date:	Wed, 25 Sep 2013 15:13:23 +0800
From:	Hongbo Zhang <hongbo.zhang@...escale.com>
To:	Eduardo Valentin <eduardo.valentin@...com>
CC:	<swarren@...dotorg.org>, <pawel.moll@....com>,
	<mark.rutland@....com>, <ian.campbell@...rix.com>,
	<rob.herring@...xeda.com>, <linux@...ck-us.net>,
	<rui.zhang@...el.com>, <wni@...dia.com>, <joe@...ches.com>,
	<grant.likely@...aro.org>, <durgadoss.r@...el.com>,
	<lm-sensors@...sensors.org>, <linux-kernel@...r.kernel.org>,
	<linux-pm@...r.kernel.org>
Subject: Re: [PATCHv6 02/16] drivers: thermal: introduce device tree parser

On 09/19/2013 05:35 AM, Eduardo Valentin wrote:
>   
> [...]
> +
> +/***   sensor API   ***/
> +

You are introducing new concept here, the original framework and drivers 
cannot use this, right? any further plan to update original framework 
for this new feature?

> +static struct thermal_zone_device *
> +thermal_zone_of_add_sensor(struct device_node *zone,
> +			   struct device_node *sensor, void *data,
> +			   int (*get_temp)(void *, long *),
> +			   int (*get_trend)(void *, long *))
> +{
> +	struct thermal_zone_device *tzd;
> +	struct __thermal_zone *tz;
> +
> +	tzd = thermal_zone_get_zone_by_name(zone->name);
> +	if (IS_ERR(tzd))
> +		return ERR_PTR(-EPROBE_DEFER);
> +
> [...]
> +
> +/*
> + * Here are the thermal trip types. This must
> + * match with enum thermal_trip_type at
> + * include/linux/thermal.h
> + */
> +#define THERMAL_TRIP_ACTIVE		0
> +#define THERMAL_TRIP_PASSIVE		1
> +#define THERMAL_TRIP_HOT		2
> +#define THERMAL_TRIP_CRITICAL		3
> +

These macros seem duplicated with enum thermal_trip_type in thermal.h, 
do you have further plan to merge them?
Or by using string "active",  "passive" etc in the dts, then you can 
reuse the original enum definition.

> +/* On cooling devices upper and lower limits */
> +#define THERMAL_NO_LIMIT		(-1UL)
> +
> +#endif
> [...]


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