linux-kernel - Re: [PATCH 3/6] driver: serial: omap: add prepare/complete callback for "no_console

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Date:	Thu, 18 Apr 2013 17:37:48 +0530
From:	Sourav Poddar <sourav.poddar@...com>
To:	<balbi@...com>
CC:	<gregkh@...uxfoundation.org>, <tony@...mide.com>,
	<rmk+kernel@....linux.org.uk>, <khilman@...aro.org>,
	<linux-serial@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/6] driver: serial: omap: add prepare/complete callback
 for "no_console_suspend" case

Hi Felipe,
On Thursday 18 April 2013 09:28 AM, Felipe Balbi wrote:
> Hi,
>
> On Wed, Apr 17, 2013 at 05:04:24PM +0530, Sourav Poddar wrote:
>> @@ -1632,6 +1650,8 @@ static const struct dev_pm_ops serial_omap_dev_pm_ops = {
>>   	SET_SYSTEM_SLEEP_PM_OPS(serial_omap_suspend, serial_omap_resume)
>>   	SET_RUNTIME_PM_OPS(serial_omap_runtime_suspend,
>>   				serial_omap_runtime_resume, NULL)
>> +	.prepare        = serial_omap_prepare,
>> +	.complete       = serial_omap_complete,
> if CONFIG_PM_SLEEP isn't defined, this will break compilation.
>
True.

Then, will it not be  a better idea to add a similar macro[1] in 
include/linux/pm.h for
prepare/complete callback as it is present for suspend/resume ?.

[1]:
#ifdef CONFIG_PM_SLEEP
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
         .suspend = suspend_fn, \
         .resume = resume_fn, \
         .freeze = suspend_fn, \
         .thaw = resume_fn, \
         .poweroff = suspend_fn, \
         .restore = resume_fn,
#else
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
#endif



~Sourav

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