Re: [PATCH RESEND v3 01/12] usb: dwc2/gadget: fix phy disable sequence

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On 09/04/2014 09:49 PM, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Sep 04, 2014 at 07:37:20PM +0000, Paul Zimmerman wrote:
>>> From: Felipe Balbi [mailto:balbi@xxxxxx]
>>> Sent: Thursday, September 04, 2014 12:18 PM
>>>
>>> On Thu, Sep 04, 2014 at 12:04:23PM -0700, Paul Zimmerman wrote:
>>>> From: Kamil Debski <k.debski@xxxxxxxxxxx>
>>>>
>>>> When the driver is removed s3c_hsotg_phy_disable is called three times
>>>> instead of once. This results in decreasing of the phy reference counter
>>>> below zero and thus consecutive inserts of the module fails.
>>>>
>>>> This patch removes calls to s3c_hsotg_phy_disable from s3c_hsotg_remove
>>>> and s3c_hsotg_udc_stop.
>>>>
>>>> s3c_hsotg_udc_stop is called from udc-core.c only after
>>>> usb_gadget_disconnect, which in turn calls s3c_hsotg_pullup, which
>>>> already calls s3c_hsotg_phy_disable.
>>>>
>>>> s3c_hsotg_remove must be called only after udc_stop, so there is no
>>>> point in disabling phy once again there.
>>>>
>>>> Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx>
>>>> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
>>>> Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
>>>> Signed-off-by: Paul Zimmerman <paulz@xxxxxxxxxxxx>
>>>
>>> looks like this one deserves a Cc: stable ?
>>
>> Good point. Robert, what do you think? Only problem is, this file
>> moved from drivers/usb/gadget/ to here in 3.16, so earlier stable
>> versions would require some additional backporting.
> 
> Right, you'll receive a notification from Greg that the patch FAILED to
> apply and all you gotta do is provide a modified patch which, in this
> case, is just a path modification.

I can rebase patchset at stable branch and send it separately.

Felipe, should I rebase only patches you have pointed or rather entire
patchset?
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