linux-kernel - Re: [PATCH] pfuze100-regulator: Revert "regulator: pfuze100: Use of_get_child_by

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Message-ID: <CAK9yfHw2q-PSaUS_tApxN=tsBhN33n6ghgTmpSJVP5yJYDQgWA@mail.gmail.com>
Date:	Wed, 19 Feb 2014 08:57:32 +0530
From:	Sachin Kamat <sachin.kamat@...aro.org>
To:	Shawn Guo <shawn.guo@...aro.org>
Cc:	Fabio Estevam <fabio.estevam@...escale.com>,
	Mark Brown <broonie@...nel.org>, festevam@...il.com,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pfuze100-regulator: Revert "regulator: pfuze100: Use of_get_child_by_name"

On 19 February 2014 07:42, Shawn Guo <shawn.guo@...aro.org> wrote:
> On Tue, Feb 18, 2014 at 09:58:52PM +0530, Sachin Kamat wrote:
>> On 18 February 2014 21:20, Fabio Estevam <fabio.estevam@...escale.com> wrote:
>> > Since commit d7857c42 (regulator: pfuze100: Use of_get_child_by_name) we get
>> > the following probe failure:
>> >
>> > pfuze100-regulator 1-0008: Full layer: 1, Metal layer: 0
>> > pfuze100-regulator 1-0008: FAB: 0, FIN: 0
>> > pfuze100-regulator 1-0008: regulators node not found
>> > pfuze100-regulator: probe of 1-0008 failed with error -22
>> >
>> > Revert the offending commit so that we can probe the regulator successfully.
>>
>> I wonder what is different in this case from the ones that I already
>> have working
>> that is causing this to fail. Can you please tell me which dts file
>> you have used
>> so that I can see if the way the node is defined is anything different.
>
> When you change to use of_get_child_by_name(), you should change 'np' to
> point to dev->of_node too.

Thanks for the tip Shawn. Coincidentally all the ones that I tested
had this (np pointing
to dev->of_node) already. So I happened to miss out on this check.

-- 
With warm regards,
Sachin
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