Re: [PATCH 1/4] usb: phy: twl4030: make runtime pm more reliable.

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On Mon, 2 Mar 2015 22:03:59 +0100 Pavel Machek <pavel@xxxxxx> wrote:

> Hi!
> 
> > +		status_changed =
> > +			(twl->linkstat == OMAP_MUSB_VBUS_VALID ||
> > +			 twl->linkstat == OMAP_MUSB_ID_GROUND)
> > +			!=
> > +			(status == OMAP_MUSB_VBUS_VALID ||
> > +			 status == OMAP_MUSB_ID_GROUND);
> >  		twl->linkstat = status;
> ...
> > @@ -768,6 +770,10 @@ static int twl4030_usb_remove(struct platform_device *pdev)
> >  
> >  	/* disable complete OTG block */
> >  	twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
> > +
> > +	if (twl->linkstat == OMAP_MUSB_VBUS_VALID ||
> > +	    twl->linkstat == OMAP_MUSB_ID_GROUND)
> > +		pm_runtime_put_noidle(twl->dev);
> >  	pm_runtime_mark_last_busy(twl->dev);
> 
> inline function returning (x == OMAP_MUSB_VBUS_VALID || x ==
> OMAP_MUSB_ID_GROUND) would really help readability here.
> 
> Thanks,
> 									Pavel

Good idea.  I've done that.  The function is called "cable_present()".

Thanks,
NeilBrown

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