linux-kernel - Re: [PATCH 1/4] driver core: introduce helper macro initcall

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Message-ID: <52498952.9040604@linaro.org>
Date:	Mon, 30 Sep 2013 22:23:14 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	Mark Brown <broonie@...nel.org>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Wolfram Sang <wsa@...-dreams.de>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Fabio Porcedda <fabio.porcedda@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Libo Chen <libo.chen@...wei.com>, linux-i2c@...r.kernel.org,
	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org,
	linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH 1/4] driver core: introduce helper macro initcall_driver()

On 2013年09月30日 17:16, Mark Brown wrote:
> On Mon, Sep 30, 2013 at 01:13:52PM +0800, Hanjun Guo wrote:
>> For some devices especially on platform/I2C/SPI bus, they want to
>> be initialized earlier than other devices, so the driver use initcall
>> such as subsys_initcall to make this device initialize earlier.
> We're trying to move away from needing to do this and to using deferred
> probing to resolve init ordering issues.  Should we not be able to
> convert the drivers to module_X_driver()?
Hi Mark,

Thanks for your comments.

That would be great to move away *_initcall in module driver, and
this patch set is not necessary if we can use deferred probe to solve
all the init order issues.

Thanks
Hanjun
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