Message-id: <1423570670.6241.2.camel@AMDC1943>
Subject: Re: [PATCH 1/1] ARM: dts: Use more descriptive names for Exynos5420 PDs
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>,
        Kukjin Kim <kgene@kernel.org>, Andrzej Hajda <a.hajda@samsung.com>,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        Marek Szyprowski <m.szyprowski@samsung.com>
Date: Tue, 10 Feb 2015 13:17:50 +0100
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On wto, 2015-02-10 at 14:55 +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 2/10/2015 2:46 PM, Krzysztof Kozlowski wrote:
> > Additionally (on Arndale Octa):
> 
> > $ cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
> >      domain                      status         slaves
> >             /device                                      runtime status
> > ----------------------------------------------------------------------
> > power-domain                    on
> >      /devices/platform/amba/3880000.adma                 suspended
> > power-domain                    off
> > power-domain                    off
> > power-domain                    off
> > power-domain                    off
> > power-domain                    off
> 
> > This really is not helpful. From the power domain debugfs code it is
> > complicated to extract of_node of power domain.
> 
>     You shouldn't need it.
> 
> > It is easier to print
> > the name of power domain. But wait... all names are the same! :) So
> > why do we have the name in the first place?
> 
>     I'm not sure why the full platform device names aren't printed -- they 
> should all be different.

This debugfs code iterates over list of generic_pm_domains (gpd_list). I
cannot find function for translating from genpd to its platform device
so only genpd->name can be printed.

Best regards,
Krzysztof

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