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From: stefan.wahren@i2se.com (Stefan Wahren)
To: linux-arm-kernel@lists.infradead.org
Subject: parent/child hierarchy for regulator
Date: Thu, 05 Mar 2015 13:18:54 +0100	[thread overview]
Message-ID: <54F849AE.6040104@i2se.com> (raw)
In-Reply-To: <20150305103534.GA19600@shlinux2>

Hi Peter,

Am 05.03.2015 um 11:35 schrieb Peter Chen:
> Hi lists,
>
> Any good ways at code/dts to show parent/child hierarchy for regulator?
>
> The related regulators at my platforms like below:
> PMIC (SWB 5v) --> Switch Chip (GPIO Regulator) --> USB VBUS
>
> PMIC has one 5V regulator (eg, swbst at pfuse), and it is the input
> for USB power switch chip, and there are two gpios at this switch
> chip to control if 5V is output or not, we register these two gpios as 
> fixed regulators, currently, if regulator swbst is disabled, the
> gpio regulator has no way to know, and cause the vbus voltage is wrong.
>
> Thanks in advance.
>

i don't have an answer to your question, but do you think of i.MX28
platform?

Regards
Stefan

WARNING: multiple messages have this Message-ID (diff)
From: Stefan Wahren <stefan.wahren@i2se.com>
To: Peter Chen <peter.chen@freescale.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: broonie@kernel.org, lgirdwood@gmail.com
Subject: Re: parent/child hierarchy for regulator
Date: Thu, 05 Mar 2015 13:18:54 +0100	[thread overview]
Message-ID: <54F849AE.6040104@i2se.com> (raw)
In-Reply-To: <20150305103534.GA19600@shlinux2>

Hi Peter,

Am 05.03.2015 um 11:35 schrieb Peter Chen:
> Hi lists,
>
> Any good ways at code/dts to show parent/child hierarchy for regulator?
>
> The related regulators at my platforms like below:
> PMIC (SWB 5v) --> Switch Chip (GPIO Regulator) --> USB VBUS
>
> PMIC has one 5V regulator (eg, swbst at pfuse), and it is the input
> for USB power switch chip, and there are two gpios at this switch
> chip to control if 5V is output or not, we register these two gpios as 
> fixed regulators, currently, if regulator swbst is disabled, the
> gpio regulator has no way to know, and cause the vbus voltage is wrong.
>
> Thanks in advance.
>

i don't have an answer to your question, but do you think of i.MX28
platform?

Regards
Stefan

  reply	other threads:[~2015-03-05 12:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-05 10:35 parent/child hierarchy for regulator Peter Chen
2015-03-05 10:35 ` Peter Chen
2015-03-05 12:18 ` Stefan Wahren [this message]
2015-03-05 12:18   ` Stefan Wahren
2015-03-06  2:40   ` Peter Chen
2015-03-06  2:40     ` Peter Chen
2015-03-05 12:22 ` Mark Brown
2015-03-05 12:22   ` Mark Brown
2015-03-06  2:51   ` Peter Chen
2015-03-06  2:51     ` Peter Chen
2015-03-06  7:18   ` Peter Chen
2015-03-06  7:18     ` Peter Chen

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