Re: [PATCH] usb: dwc3: gadget: Add the suspend state checking when stopping gadget
From: Baolin Wang
Date: Mon Jun 20 2016 - 04:17:41 EST
On 20 June 2016 at 16:15, Felipe Balbi <balbi@xxxxxxxxxx> wrote:
> Baolin Wang <baolin.wang@xxxxxxxxxx> writes:
>
>> It will be crash to stop gadget when the dwc3 device had been into suspend
>> state, thus we need to check if the dwc3 device had been into suspend state
>> when UDC try to stop gadget.
>>
>> By the way I have rebased on your 'testing/next' branch.
>
> do you really want this note to be in commit log? Seems like this should
> be after tearline below.
Sorry. I'll remove this in next version. Thanks for your comment.
>
>>
>> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
>> ---
>> drivers/usb/dwc3/gadget.c | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
>> index 6dde376..351769e 100644
>> --- a/drivers/usb/dwc3/gadget.c
>> +++ b/drivers/usb/dwc3/gadget.c
>> @@ -1791,6 +1791,9 @@ err0:
>>
>> static void __dwc3_gadget_stop(struct dwc3 *dwc)
>> {
>> + if (pm_runtime_suspended(dwc->dev))
>> + return;
>> +
>> dwc3_gadget_disable_irq(dwc);
>> __dwc3_gadget_ep_disable(dwc->eps[0]);
>> __dwc3_gadget_ep_disable(dwc->eps[1]);
>> --
>> 1.7.9.5
>>
>> --
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>
> --
> balbi
--
Baolin.wang
Best Regards