linux-kernel - Re: [Qualcomm PM8921 MFD 1/6] mfd: pm8921: Add PMIC 8921 core driver

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Date:	Wed, 02 Mar 2011 19:38:24 -0800
From:	Abhijeet Dharmapurikar <adharmap@...eaurora.org>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	davidb@...eaurora.org, "David S. Miller" <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Daniel Walker <dwalker@...o99.com>,
	David Collins <collinsd@...eaurora.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Joe Perches <joe@...ches.com>,
	Russell King <linux@....linux.org.uk>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Stepan Moskovchenko <stepanm@...eaurora.org>,
	Linus Walleij <linux.walleij@...rricsson.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [Qualcomm PM8921 MFD 1/6] mfd: pm8921: Add PMIC 8921 core driver

Mark Brown wrote:
> On Wed, Mar 02, 2011 at 02:13:16PM -0800, adharmap@...eaurora.org wrote:
> 
>> +config MFD_PM8XXX
>> +	tristate "Support for Qualcomm PM8xxx subdevices"
>> +	help
>> +	  This option enables the usage of various Qualcomm PMIC 8xxx subdevice
>> +	  drivers. This is required in order to use generic PM8xxx subdevice
>> +	  drivers. Selecting with option will result in PM8xxx subdevice
>> +	  drivers being compiled by default.
> 
> As this is selected by the driver it shouldn't have any help text -
> there's no point in users seeing the option since it's useless by
> itself.  If we get enough to make an option useful either a menu or
> dependencies from the individual MFDs would be a better option.

Agree will fix this.
> 
>> +static int __devinit pm8921_add_subdevices(const struct pm8921_platform_data
>> +					   *pdata,
>> +					   struct pm8921 *pmic)
>> +{
>> +	return 0;
>> +}
> 
> This looks suspicious.

True, the next patch fills in this function. Will remove it from here.

> 
>> +static int __init pm8921_init(void)
>> +{
>> +	return platform_driver_register(&pm8921_driver);
>> +}
>> +postcore_initcall(pm8921_init);
> 
> Typically subsys_initcall() has been used.

Yes will change this and others to subsys_initcall()


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