From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: MUSB peripheral DMA regression caused by driver core runtime PM change
Date: Wed, 21 Oct 2015 16:41:34 -0700 [thread overview]
Message-ID: <20151021234134.GQ3078@atomide.com> (raw)
Hi all,
I noticed a regresssino in v4.3-rc series to day with MUSB gadgets
and DMA. Doing a git bisect between v4.2..v4.3-rc1 on it pointed to:
ddef08dd00f5 ("Driver core: wakeup the parent device before trying probe")
With the commit above reverted things work fine with DMA and USB gadgets.
This is on omap3 with CONFIG_USB_INVENTRA_DMA selected. Selecting
CONFIG_MUSB_PIO_ONLY still works even without reverting ddef08dd00f5.
Anybody got ideas what might be wrong? Some wrong runtime PM usage
under drivers/usb/musb?
Regards,
Tony
next reply other threads:[~2015-10-21 23:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 23:41 Tony Lindgren [this message]
2015-10-22 18:02 ` MUSB peripheral DMA regression caused by driver core runtime PM change Tony Lindgren
2015-10-22 23:01 ` Tony Lindgren
2015-10-23 12:50 ` Grygorii Strashko
2015-10-23 16:43 ` Tony Lindgren
2015-10-23 16:48 ` Felipe Balbi
2015-10-23 17:58 ` Grygorii Strashko
2015-10-23 18:27 ` Alan Stern
2015-10-23 19:20 ` Tony Lindgren
2015-10-23 20:33 ` Alan Stern
2015-10-23 20:36 ` Tony Lindgren
2015-10-28 17:14 ` Tony Lindgren
2015-10-28 17:16 ` Felipe Balbi
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