linux-kernel - Re: [PATCH] regulator: fixed: support deferred probe for DT GPIOs

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Message-ID: <20120629012507.GL28922@opensource.wolfsonmicro.com>
Date:	Fri, 29 Jun 2012 02:25:08 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Liam Girdwood <lrg@...com>, linux-kernel@...r.kernel.org,
	Stephen Warren <swarren@...dia.com>
Subject: Re: [PATCH] regulator: fixed: support deferred probe for DT GPIOs

On Thu, Jun 28, 2012 at 04:31:32PM -0600, Stephen Warren wrote:

>  static struct fixed_voltage_config *
> -of_get_fixed_voltage_config(struct device *dev)
> +of_get_fixed_voltage_config(struct device *dev, bool *defer_probe)

This is pretty contorted, we should just be able to pass the return
value back more directly and of course ideally gpiolib would be doing
the -EPROBE_DEFER for us anyway (I did send a patch for this, Grant
didn't apply it due to a mostly unrelated issue in the current probe
deferral implementation).  Or just defer if we don't get a config passed
back or something.

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