On Tue, May 20, 2014 at 01:35:31AM -0700, Brian Norris wrote:
> > > > static int bf5xx_nand_resume(struct platform_device *dev)
> > > > {
> > > > - struct bf5xx_nand_info *info = platform_get_drvdata(dev);
> > > > -
> > > > return 0;
> > >
> > > In this case bf5xx_nand_suspend/resume could be removed?
> >
> > I don't know. It looks like it is intentional to have a definition that
> > returns an indication of success? The complete set of definitions is:
>
> I'm not so sure. I believe suspend/resume works just fine without the
> hooks, if those hooks would otherwise be doing nothing. It is notable
> that this driver is not using the modern dev_pm_ops form of the
> suspend/resume callbacks, so maybe it just hasn't aged gracefully--and
> possibly was never supported properly in the first place.
>
These are called from platform_legacy_suspend/platform_legacy_resume.
It looks like the functions are not needed.
(I am not an expert on pm, I just querried my Smatch Cross Function
Database which is awesome).
regards,
dan carpenter
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