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From: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Julian Calaby <julian.calaby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Maxime Ripard
	<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
	"Mailing List,
	Arm"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
	devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Re: [PATCH 1/4] ARM: dts: sunxi: Add regulator-boot-on to usb host port regulator nodes
Date: Mon, 22 Jun 2015 10:28:16 +0200	[thread overview]
Message-ID: <5587C720.9040007@redhat.com> (raw)
In-Reply-To: <CAGRGNgU7179K408=PekziP9ZzzG7+rvhm=e7TWjZk1UhkAnVZQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

Hi,

On 22-06-15 02:30, Julian Calaby wrote:
> Hi Hans,
>
> On Sun, Jun 21, 2015 at 1:40 AM, Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
>> u-boot will have turned on the power to the usb host ports, so mark them
>> as regulator-boot-on, this stops the power on the ports from temporarily
>> getting turned off during boot, causing issues with e.g. usb powered
>> harddisks.
>
> Stupid question: shouldn't u-boot set this property?

We could make u-boot set this property but that will require a lot of code on
u-boot's side which is simply not there atm. And traditionally this property
is is simply a part of the dts files as shipped with the kernel.

Regards,

Hans

  parent reply	other threads:[~2015-06-22  8:28 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-20 15:40 [PATCH 0/4] ARM: dts: sunxi: Enable otg on more boards Hans de Goede
     [not found] ` <1434814810-26285-1-git-send-email-hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-06-20 15:40   ` [PATCH 1/4] ARM: dts: sunxi: Add regulator-boot-on to usb host port regulator nodes Hans de Goede
     [not found]     ` <1434814810-26285-2-git-send-email-hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-06-22  0:30       ` Julian Calaby
     [not found]         ` <CAGRGNgU7179K408=PekziP9ZzzG7+rvhm=e7TWjZk1UhkAnVZQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-06-22  8:28           ` Hans de Goede [this message]
     [not found]             ` <5587C720.9040007-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-06-22 14:54               ` Julian Calaby
2015-06-23  7:16               ` Maxime Ripard
2015-06-23  8:19                 ` [linux-sunxi] " Hans de Goede
     [not found]                   ` <5589167E.4020905-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-06-25 11:12                     ` Maxime Ripard
2015-06-20 15:40   ` [PATCH 2/4] ARM: dts: sun4i: Enable otg controller on the ba10-tvbox Hans de Goede
2015-06-20 15:40   ` [PATCH 3/4] ARM: dts: sun4i: Enable otg controller on the mini-x Hans de Goede
2015-06-20 15:40   ` [PATCH 4/4] ARM: dts: sun6i: Enable otg controller on the cs908 Hans de Goede
2015-06-25 11:13   ` [PATCH 0/4] ARM: dts: sunxi: Enable otg on more boards Maxime Ripard

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