[PATCH] dmaengine: fsl-edma: add PM suspend/resume support

[Yao Yuan]

Hi Arnd,
Ok, I will remove the #ifdef in the next version.
Thanks.

Hi All,
Is there any others comments?

Thanks for your review.

Best Regards,
Yuan Yao

On Wednesday, July 15, 2015 10:55 PM Arnd wrote:
> On Wednesday 15 July 2015 10:29:55 Yao Yuan wrote:
> > Hi Arnd,
> >
> > Thanks for your review.
> > And can you give me more information?
> > In my opinion, The fsl_edma_pm_state will just be used when CONFIG_PM
> > support. So why not use the #ifdefs to remove the unnecessary code? Since
> the PM will not be selected in many use cases.
> 
> I would consider code readability more important than saving a few instructions,
> and the #ifdef interrupts the reading flow.
> Another aspect is that the compiler does not produce warnings for incorrect
> code in an #ifdef, so we try to use e.g. 'if (IS_ENABLED(CONFIG_FOO))'
> instead of '#ifdef CONFIG_FOO' wherever possible.
> 
> 	Arnd