Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1710637
| Path | csiph.com!goblin2!goblin.stu.neva.ru!news.etla.org!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Shawn Guo <shawnguo@kernel.org> |
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] soc: imx: gpcv2: fix regulator deferred probe |
| Date | Mon, 14 Aug 2017 07:40:02 +0200 |
| Message-ID | <ueggy-7f-9@gated-at.bofh.it> (permalink) |
| References | <ua7Yd-5TV-3@gated-at.bofh.it> <uaXN7-7Ew-1@gated-at.bofh.it> <uefXb-8sK-7@gated-at.bofh.it> |
| Dmarc-Filter | OpenDMARC Filter v1.3.2 mail.kernel.org 6AD65239EF |
| Authentication-Results | mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org |
| Authentication-Results | mail.kernel.org; spf=none smtp.mailfrom=shawnguo@kernel.org |
| MIME-Version | 1.0 |
| Content-Type | text/plain; charset=us-ascii |
| Content-Disposition | inline |
| User-Agent | Mutt/1.5.21 (2010-09-15) |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 32 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | kernel@pengutronix.de, Fabio Estevam <fabio.estevam@nxp.com>, Andrey Smirnov <andrew.smirnov@gmail.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org |
| X-Original-Date | Mon, 14 Aug 2017 13:35:12 +0800 |
| X-Original-Message-ID | <20170814053510.GI31819@dragon> |
| X-Original-References | <20170802195129.20442-1-stefan@agner.ch> <20170805031321.GP31819@dragon> <4546b5193b819ad78a9663baa41be836@agner.ch> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1710637 |
Show key headers only | View raw
On Sun, Aug 13, 2017 at 10:12:13PM -0700, Stefan Agner wrote:
> Hi Shawn,
>
> On 2017-08-04 20:13, Shawn Guo wrote:
> > On Wed, Aug 02, 2017 at 12:51:29PM -0700, Stefan Agner wrote:
> >> If a regulator requests a deferred probe, the power domain gets
> >> initialized twice. This leads to a list double add (without
> >> list debugging the kernel hangs due to the double add later):
> >>
> >> WARNING: CPU: 0 PID: 19 at lib/list_debug.c:31 __list_add_valid+0xbc/0xc4
> >> list_add double add: new=c1229754, prev=c12383b4, next=c1229754.
> >>
> >> Initialize the power domain after we get the regulator. Also do
> >> not print an error in case the regulator defers probing.
> >>
> >> Cc: Fabio Estevam <fabio.estevam@nxp.com>
> >> Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
> >> Cc: linux-arm-kernel@lists.infradead.org
> >> Cc: linux-kernel@vger.kernel.org
> >> Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver")
> >> Signed-off-by: Stefan Agner <stefan@agner.ch>
> >
> > Applied, thanks.
>
> As of 4.13-rc5 this did not make it upstream yet, I guess still on its
> way?
Yes, Stefan. It's on the way to arm-soc [1], but not yet responded.
Shawn
[1] https://www.spinics.net/lists/arm-kernel/msg598634.html
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: [PATCH] soc: imx: gpcv2: fix regulator deferred probe Stefan Agner <stefan@agner.ch> - 2017-08-14 07:20 +0200
Re: [PATCH] soc: imx: gpcv2: fix regulator deferred probe Shawn Guo <shawnguo@kernel.org> - 2017-08-14 07:40 +0200
Re: [PATCH] soc: imx: gpcv2: fix regulator deferred probe Arnd Bergmann <arnd@arndb.de> - 2017-08-15 17:40 +0200
csiph-web