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

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Message-ID: <20150302210359.GG13270@amd>
Date:	Mon, 2 Mar 2015 22:03:59 +0100
From:	Pavel Machek <pavel@....cz>
To:	NeilBrown <neilb@...e.de>
Cc:	Tony Lindgren <tony@...mide.com>, Felipe Balbi <balbi@...com>,
	Kishon Vijay Abraham I <kishon@...com>,
	linux-omap@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>,
	GTA04 owners <gta04-owner@...delico.com>
Subject: Re: [PATCH 1/4] usb: phy: twl4030: make runtime pm more reliable.

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
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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