From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] pinctrl: implement pinctrl deferred probing
Date: Thu, 12 Apr 2012 18:09:24 +0100 [thread overview]
Message-ID: <20120412170924.GA18049@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1334133248-1452-1-git-send-email-linus.walleij@stericsson.com>
On Wed, Apr 11, 2012 at 10:34:08AM +0200, Linus Walleij wrote:
> From: Linus Walleij <linus.walleij@linaro.org>
>
> If drivers try to obtain pinctrl handles for a pin controller that
> has not yet registered to the subsystem, we need to be able to
> back out and retry with deferred probing. So let's return
> -EPROBE_DEFER whenever this location fails. Also downgrade the
> errors to info, maybe we will even set them to debug once the
> deferred probing is commonplace.
Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Note that the probe deferral code already has info level logs every time
it does anything so you'll probably have a hint from that when it kicks
into action.
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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Linus Walleij <linus.walleij@stericsson.com>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Stephen Warren <swarren@nvidia.com>,
Shawn Guo <shawn.guo@freescale.com>,
Thomas Abraham <thomas.abraham@linaro.org>,
Dong Aisheng <dong.aisheng@linaro.org>,
Rajendra Nayak <rajendra.nayak@linaro.org>,
Haojian Zhuang <haojian.zhuang@marvell.com>,
Linus Walleij <linus.walleij@linaro.org>,
Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v2] pinctrl: implement pinctrl deferred probing
Date: Thu, 12 Apr 2012 18:09:24 +0100 [thread overview]
Message-ID: <20120412170924.GA18049@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1334133248-1452-1-git-send-email-linus.walleij@stericsson.com>
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On Wed, Apr 11, 2012 at 10:34:08AM +0200, Linus Walleij wrote:
> From: Linus Walleij <linus.walleij@linaro.org>
>
> If drivers try to obtain pinctrl handles for a pin controller that
> has not yet registered to the subsystem, we need to be able to
> back out and retry with deferred probing. So let's return
> -EPROBE_DEFER whenever this location fails. Also downgrade the
> errors to info, maybe we will even set them to debug once the
> deferred probing is commonplace.
Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Note that the probe deferral code already has info level logs every time
it does anything so you'll probably have a hint from that when it kicks
into action.
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next prev parent reply other threads:[~2012-04-12 17:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-11 8:34 [PATCH v2] pinctrl: implement pinctrl deferred probing Linus Walleij
2012-04-11 8:34 ` Linus Walleij
2012-04-11 15:43 ` Stephen Warren
2012-04-11 15:43 ` Stephen Warren
2012-04-12 17:09 ` Mark Brown [this message]
2012-04-12 17:09 ` Mark Brown
2012-04-12 17:34 ` Linus Walleij
2012-04-12 17:34 ` Linus Walleij
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