[PATCH 2/2] powerpc/usb: fix bug of CPU hang when missing USB PHY clock
Kumar Gala
galak at kernel.crashing.org
Tue Aug 21 11:22:35 EST 2012
On Aug 12, 2012, at 10:01 PM, Liu Shengzhou-B36685 wrote:
>
>
>> -----Original Message-----
>> From: Kumar Gala [mailto:galak at kernel.crashing.org]
>> Sent: Friday, August 10, 2012 9:50 PM
>> To: Liu Shengzhou-B36685
>> Cc: linuxppc-dev at lists.ozlabs.org list; linux-usb at vger.kernel.org;
>> gregkh at linuxfoundation.org
>> Subject: Re: [PATCH 2/2] powerpc/usb: fix bug of CPU hang when missing USB PHY
>> clock
>>
>>
>> On Aug 10, 2012, at 5:48 AM, Shengzhou Liu wrote:
>>
>>> when missing USB PHY clock, kernel booting up will hang during USB
>>> initialization. We should check USBGP[PHY_CLK_VALID] bit to avoid CPU
>>> hanging in this case.
>>>
>>> Signed-off-by: Shengzhou Liu <Shengzhou.Liu at freescale.com>
>>> ---
>>> drivers/usb/host/ehci-fsl.c | 63 ++++++++++++++++++++++++++++++-----------
>> -
>>> drivers/usb/host/ehci-fsl.h | 1 +
>>> 2 files changed, 46 insertions(+), 18 deletions(-)
>>
>> I assume this should be considered a bug fix and be looked at for inclusion in
>> v3.6?
>>
>> - k
> [Shengzhou] Yes.
Greg,
ping?
- k
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