linux-kernel - Re: [RFC] usb: Add support for runtime power management of the hcd

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Message-ID: <20090813214729.GD14532@srcf.ucam.org>
Date:	Thu, 13 Aug 2009 22:47:29 +0100
From:	Matthew Garrett <mjg@...hat.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Greg KH <gregkh@...e.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	linux-pci@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [RFC] usb: Add support for runtime power management of the hcd

On Thu, Aug 13, 2009 at 11:22:44AM -0400, Alan Stern wrote:

> You have to call the HCD's pci_suspend method!  Not to mention calling 
> synchronize_irq and all the other stuff in hcd_pci_suspend and 
> hcd_pci_suspend_noirq.

The bus level code does this, assuming that the driver-level code 
doesn't return an error.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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