linux-kernel - Re: [PATCH] usb: dwc2: Fix HiKey regression caused by power

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Date:   Tue, 25 Sep 2018 10:04:07 +0000
From:   Artur Petrosyan <arthur.petrosyan@...opsys.com>
To:     John Stultz <john.stultz@...aro.org>,
        Artur Petrosyan <arthur.petrosyan@...opsys.com>
CC:     Minas Harutyunyan <Minas.Harutyunyan@...opsys.com>,
        lkml <linux-kernel@...r.kernel.org>,
        John Youn <John.Youn@...opsys.com>,
        "Felipe Balbi" <felipe.balbi@...ux.intel.com>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: Re: [PATCH] usb: dwc2: Fix HiKey regression caused by power_down
 feature

Hi John,

On 9/24/2018 22:52, John Stultz wrote:
> On Sun, Sep 23, 2018 at 10:57 PM, Artur Petrosyan
> <arthur.petrosyan@...opsys.com> wrote:
>> Hi John,
>>
>> On 9/21/2018 05:05, John Stultz wrote:
>>> On Thu, Sep 20, 2018 at 7:17 AM, Artur Petrosyan
>>> <Arthur.Petrosyan@...opsys.com> wrote:
>>>> On 5/23/2018 01:57, John Stultz wrote:
>>>>> Its done automatically, when the OTG cable is detected it the host
>>>>> ports are disabled and when the OTG port is empty the host ports are
>>>>> enabled.
>>>>>
>>>>> Let me know if you need anything else!
>>>>>
>>>>
>>>> Please apply the patch set with this cover letter "[PATCH 0/3] usb:
>>>> dwc2: Fix hibernation for switching between host and device modes."
>>>
>>> Sorry, can you send the patches to me, or point me to a git tree? I'm
>>> not seeing that thread in my mailbox or on google.
>>>
>>>> Enable the power down on his devices. Let me know if you still see any
>>>> issue. If there is no issue, please provide Tested-by tag.
>>>
>>> Would be happy to test it, thought I'm traveling tomorrow, so I may
>>> not be able to validate till monday.
>>>
>>> thanks
>>> -john
>>>
>>
>> You can find the patch set following to this link.
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__marc.info_-3Fl-3Dlinux-2Dusb-26m-3D153745139408236-26w-3D2&d=DwIBaQ&c=DPL6_X_6JkXFx7AXWqB0tg&r=9hPBFKCJ_nBjJhGVrrlYOeOQjP_HlVzYqrC_D7niMJI&m=dfaz_WctFBdFgywM2g9w0XVhgOdAS4gIsj9o23RnyvY&s=_Nz3ephAop_nqrfcICii4OgMkV14Mi4yaKk8-qPqdis&e=
> 
> I applied those three patches, and it seems to work ok.
> 
> Just to be clear, was there anything else I was needing to do while testing it?
> 
> Otherwise,
> Tested-by: John Stultz <john.stultz@...aro.org>   #On HiKey
> 
> thanks
> -john
> 

Just a clarification by this commit "[PATCH] usb: dwc2: Fix HiKey 
regression caused by power_down feature"
https://marc.info/?l=linux-usb&m=152669095513248&w=2

the power_down is disabled setting "p->power_down = false;" in 
"dwc2_set_his_params" function.

Could you please clarify that the testes done for those 3 patches were 
done enabling "p->power_down = true;" in "dwc2_set_his_params" function.

Regards,
Artur