From: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Karsten Merker <merker-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>,
Maxime Ripard
<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Ian Campbell
<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dev-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org
Subject: Re: [PATCH] ARM: dts: sunxi: Banana Pi: increase startup-delay for the GMAC PHY regulator
Date: Sun, 09 Nov 2014 22:05:26 +0100 [thread overview]
Message-ID: <545FD716.5060305@redhat.com> (raw)
In-Reply-To: <1415539714-7652-2-git-send-email-merker-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
Hi,
On 11/09/2014 02:28 PM, Karsten Merker wrote:
> On the LeMaker Banana Pi, probing the external ethernet PHY connected
> to the SoC's internal GMAC module sometimes fails. The PHY power
> supply is handled via a GPIO-controlled regulator, and the existing
> regulator startup-delay of 50000us is too short to make sure that the
> PHY is always fully powered up when it is queried by phylib. To
> guarantee a reliable PHY detection, the startup-delay has to be
> increased to 60000us.
We should probably just increase it to 100000us to be safe, otherwise:
Acked-by: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Regards,
Hans
next prev parent reply other threads:[~2014-11-09 21:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-09 13:28 [PATCH] ARM: dts: Fix failing ethernet PHY detection on the LeMaker Banana Pi Karsten Merker
[not found] ` <1415539714-7652-1-git-send-email-merker-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2014-11-09 13:28 ` [PATCH] ARM: dts: sunxi: Banana Pi: increase startup-delay for the GMAC PHY regulator Karsten Merker
[not found] ` <1415539714-7652-2-git-send-email-merker-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2014-11-09 21:05 ` Hans de Goede [this message]
[not found] ` <545FD716.5060305-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-11-11 17:34 ` Maxime Ripard
2014-11-11 18:35 ` Hans de Goede
2014-11-11 23:01 ` [PATCH V2 0/1] ARM: dts: Fix failing ethernet PHY detection on the LeMaker Banana Pi Karsten Merker
[not found] ` <1415746906-20835-1-git-send-email-merker-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2014-11-11 23:01 ` [PATCH V2 1/1] ARM: dts: sunxi: Banana Pi: increase startup-delay for the GMAC PHY regulator Karsten Merker
[not found] ` <1415746906-20835-2-git-send-email-merker-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2014-11-12 13:37 ` Maxime Ripard
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=545FD716.5060305@redhat.com \
--to=hdegoede-h+wxahxf7alqt0dzr+alfa@public.gmane.org \
--cc=dev-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org \
--cc=devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org \
--cc=maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org \
--cc=merker-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).