linux-kernel - Re: [RFC PATCH 01/14] cpufreq: cpufreq-cpu0: add dt node parsing for 'cooling-zones'

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Date:	Mon, 26 Aug 2013 10:12:33 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Eduardo Valentin <eduardo.valentin@...com>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ian.campbell@...rix.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Zhang Rui <rui.zhang@...el.com>, wni@...dia.com,
	"R, Durgadoss" <durgadoss.r@...el.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	lm-sensors@...sensors.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	devicetree-discuss <devicetree-discuss@...ts.ozlabs.org>
Subject: Re: [RFC PATCH 01/14] cpufreq: cpufreq-cpu0: add dt node parsing for 'cooling-zones'

On 24 August 2013 04:45, Eduardo Valentin <eduardo.valentin@...com> wrote:
> diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
> index ad1fde2..ede6487 100644
> --- a/drivers/cpufreq/cpufreq-cpu0.c
> +++ b/drivers/cpufreq/cpufreq-cpu0.c
> @@ -20,6 +20,9 @@
>  #include <linux/platform_device.h>
>  #include <linux/regulator/consumer.h>
>  #include <linux/slab.h>
> +#include <linux/thermal.h>
> +#include <linux/cpu_cooling.h>
> +#include <linux/cpumask.h>

In alphabetical order please..

> @@ -268,6 +272,13 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
>                 goto out_free_table;
>         }
>
> +       /*
> +        * For now, just loading the cooling device;
> +        * thermal DT code takes care of matching them.
> +        */
> +       if (of_find_property(np, "cooling-zones", NULL))
> +               cdev = cpufreq_cooling_register(cpu_present_mask);

Should we check if it passed or failed? And if failed Atleast flag an
appropriate message?
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