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From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Javier Martinez Canillas <javier@osg.samsung.com>,
	Kukjin Kim <kgene@kernel.org>
Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4] ARM: dts: Use labels instead of full paths for Exynos5 pinctrl nodes
Date: Thu, 09 Jul 2015 08:51:53 +0900	[thread overview]
Message-ID: <559DB799.3040800@samsung.com> (raw)
In-Reply-To: <559D308E.3020809@osg.samsung.com>

On 08.07.2015 23:15, Javier Martinez Canillas wrote:
> Krzysztof,
> 
> On 07/08/2015 01:27 AM, Krzysztof Kozlowski wrote:
>> On 08.07.2015 14:36, Javier Martinez Canillas wrote:
>>> Hello Kukjin and Krzysztof,
>>>
>>> This is a trivial series that changes Exynos5 pinctrl dtsi files to extend
>>> the pinctrl nodes using labels instead of full paths.
>>>
>>> Using labels is less error prone since a misstyped label leads to a build
>>> error while full paths can lead to the creation of a new node instead of
>>> overriding the original which makes the mistake harder to detect.
>>>
>>> I tested the changes by decompiling the Exynos5* dtbs and comparing before
>>> and after. The resulting dts were identical modulo some node ordering due
>>> the pinctrl include change.
>>
>> Is the DTB before and after the same? It should not change by re-ordering.
>>
> 
> The DTB differ but I'm not that familiar with how dtc represents the FDT
> to know what is changing in the binary.
> 
> But as mentioned, the decompiled DTS only changes in which position the
> pinctrl are defined and both DTS are identical if I do:
> 
> $ cat decompiled.dts | sort

Right, the DTB may differ because of change of definition's location. If
sorting fixes this then I'm convinced.

Best regards,
Krzysztof

      reply	other threads:[~2015-07-08 23:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-08  5:36 [PATCH 0/4] ARM: dts: Use labels instead of full paths for Exynos5 pinctrl nodes Javier Martinez Canillas
2015-07-08  5:36 ` [PATCH 1/4] ARM: dts: Include exynos5250-pinctrl after the nodes were defined Javier Martinez Canillas
2015-07-08  8:24   ` Krzysztof Kozlowski
2015-07-08  5:36 ` [PATCH 2/4] ARM: dts: Extend exynos5250-pinctrl nodes using labels instead of paths Javier Martinez Canillas
2015-07-08  8:29   ` Krzysztof Kozlowski
     [not found]     ` <559CDF66.6080609-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2015-07-08 14:05       ` Javier Martinez Canillas
2015-07-08 23:53         ` Krzysztof Kozlowski
2015-07-08  5:36 ` [PATCH 3/4] ARM: dts: Include exynos5420-pinctrl after the nodes were defined Javier Martinez Canillas
2015-07-08  8:25   ` Krzysztof Kozlowski
2015-07-08  8:27 ` [PATCH 0/4] ARM: dts: Use labels instead of full paths for Exynos5 pinctrl nodes Krzysztof Kozlowski
     [not found]   ` <559CDEDA.50608-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2015-07-08 14:15     ` Javier Martinez Canillas
2015-07-08 23:51       ` Krzysztof Kozlowski [this message]

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