linux-pm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Sebastian Reichel <sre@kernel.org>
To: "Heiko Stübner" <heiko@sntech.de>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] power: reset: gpio-restart: increase priority slightly
Date: Tue, 2 Jun 2015 21:28:51 +0200	[thread overview]
Message-ID: <20150602192850.GC13930@earth> (raw)
In-Reply-To: <4893951.aWdOo6F7tl@diego>

[-- Attachment #1: Type: text/plain, Size: 1323 bytes --]

Hi Heiko,

On Tue, Jun 02, 2015 at 04:48:50PM +0200, Heiko Stübner wrote:
> gpio-restart uses a priority of 128 and currently most soc-level restart
> mechanisms use the same - with some exceptions even using 192.
> But while the soc-level restarts are provided by the soc itself,
> gpio-restarts will most of the time be board-specfic and be used
> when some special board condition makes the soc-level restart
> only a second choice.
> 
> The problem at hand manifested itself on the rk3288-veyron devices.
> While the soc-level restart can sucessfully restart all other rockchip
> boards I have, the veyron devices use an external restart mechanism that
> seems to not only reset the soc but also some external needed components.
> 
> With both restart handlers having priority 128 in my tests the soc-specific
> variant took precedent in all cases. While it could restart the soc
> sucessfully in all cases, firmware then got an issue when talking to an
> external component, resulting in the device being put into recovery mode.
> 
> So, give the board-specific restart handler a slight push and move it
> to priority 129 to make it more important than the generic soc-specific
> restart-handler.
> 
> Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Thanks, queued for 4.2.

-- Sebastian

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

      parent reply	other threads:[~2015-06-02 19:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-02 14:48 [PATCH] power: reset: gpio-restart: increase priority slightly Heiko Stübner
2015-06-02 15:25 ` Guenter Roeck
2015-06-02 19:28 ` Sebastian Reichel [this message]

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=20150602192850.GC13930@earth \
    --to=sre@kernel.org \
    --cc=dbaryshkov@gmail.com \
    --cc=dwmw2@infradead.org \
    --cc=heiko@sntech.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=linux@roeck-us.net \
    /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).