From: Dan Murphy <dmurphy@ti.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: Sven Schuchmann <schuchmann@schleissheimer.de>,
Rob Herring <robh+dt@kernel.org>, <linux-leds@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] leds: lp50xx: remove unused regulator
Date: Wed, 3 Feb 2021 10:02:00 -0600 [thread overview]
Message-ID: <0ddd5bdf-0484-3c20-1b6e-5573d1ff90f6@ti.com> (raw)
In-Reply-To: <20210203142336.GA12369@duo.ucw.cz>
Pavel
On 2/3/21 8:23 AM, Pavel Machek wrote:
> On Wed 2021-02-03 07:49:35, Dan Murphy wrote:
>> Pavel
>>
>> On 2/3/21 3:02 AM, Pavel Machek wrote:
>>> On Wed 2021-02-03 08:34:08, Sven Schuchmann wrote:
>>>> The regulator for vled-supply is unused in the driver.
>>>> It is just assigned from DT and disabled in lp50xx_remove.
>>>> So the code can be removed from the driver.
>>> Dan, what is going on here? Do we need to also enable the regulator,
>>> or is the removal correct thing to do?
>>>
>> I think it would be better to do an enable as opposed to removing the code.
>>
>> This would be needed especially in applications that have to meet strict
>> power management requirements.
>>
>> Users may want to disable or enable the regulator during suspend/resume.
>> Otherwise it would be considered always-on and the regulator does not need
>> to be populated.
> Do you have set up where this is needed and you can test this? Will
> you submit the fixes?
No I use an always on regulator in my setup. I have no managed supplies
exposed.
Dan
> Best regards,
>
> Pavel
next prev parent reply other threads:[~2021-02-03 16:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-03 8:34 Sven Schuchmann
2021-02-03 9:02 ` Pavel Machek
2021-02-03 13:49 ` Dan Murphy
2021-02-03 14:23 ` Pavel Machek
2021-02-03 16:02 ` Dan Murphy [this message]
2021-02-03 16:26 ` AW: " Sven Schuchmann
2021-02-04 14:47 ` Pavel Machek
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