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From: Artur Petrosyan <arthur.petrosyan@synopsys.com>
To: John Stultz <john.stultz@linaro.org>,
	Artur Petrosyan <arthur.petrosyan@synopsys.com>
Cc: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>,
	lkml <linux-kernel@vger.kernel.org>,
	John Youn <John.Youn@synopsys.com>,
	"Felipe Balbi" <felipe.balbi@linux.intel.com>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Subject: Re: [PATCH] usb: dwc2: Fix HiKey regression caused by power_down feature
Date: Thu, 27 Sep 2018 12:33:13 +0000	[thread overview]
Message-ID: <3AD91E696667BF4BA728303C178E8A63532ACAE6@am04wembxb.internal.synopsys.com> (raw)
In-Reply-To: <CALAqxLW=jT+oUASGKxcFghfHZEU7LtFJBiBBkmMM1oarKjSBKw@mail.gmail.com>

Hi John,

On 9/25/2018 21:59, John Stultz wrote:
> On Tue, Sep 25, 2018 at 3:04 AM, Artur Petrosyan
> <arthur.petrosyan@synopsys.com> wrote:
>> Just a clarification by this commit "[PATCH] usb: dwc2: Fix HiKey
>> regression caused by power_down feature"
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__marc.info_-3Fl-3Dlinux-2Dusb-26m-3D152669095513248-26w-3D2&d=DwIBaQ&c=DPL6_X_6JkXFx7AXWqB0tg&r=9hPBFKCJ_nBjJhGVrrlYOeOQjP_HlVzYqrC_D7niMJI&m=0lMkv7adFVwkzyaUzD6-pUG0iwg4fd6b1-aHQgbqvSI&s=m8SZvo3J_Za08sMbo-S9EkhoA06YnzEN-SRm-uTPnbg&e=
>>
>> 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.
> 
> So if I remove the "power_down = true" initialization, USB does not
> seem to function.
> 
> If I boot w/ the gadget port removed, the USB host ports do work, but
> plugging in the gadget cable results in a bunch of:
>     dwc2 f72c0000.usb: Waiting for Host Mode, Mode=Peripheral
> messages.
> 
> If I boot w/ the gadget port plugged in, USB gadget mode doesn't seem
> to function at all, and when I remove the gadget cable nothing
> happens, it doesn't switch to host mode.
> 
> thanks
> -john
> 

We would like to buy the HiKey board to perform testes.
We found this HiKey LeMaker to have USB 2.0 ports
https://www.ebay.com/itm/HiKey-LeMaker-version-2GB-Kirin-620-SoC-8-core-ARM-Cortex-A53-CPU-ARM-Mali-450/263958047308?hash=item3d75202a4c:g:aGsAAOSwOkxbqqot
on ebay.

Could you please confirm that it is the right board to test the issues 
you mention.

Regards,
Artur

  parent reply	other threads:[~2018-09-27 12:33 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-19  0:49 John Stultz
2018-05-21  8:45 ` Minas Harutyunyan
2018-05-21 19:40   ` John Stultz
2018-05-22 14:24     ` Minas Harutyunyan
2018-05-22 21:57       ` John Stultz
2018-09-20 14:17         ` Artur Petrosyan
2018-09-21  1:05           ` John Stultz
2018-09-24  5:57             ` Artur Petrosyan
2018-09-24 18:51               ` John Stultz
2018-09-25 10:04                 ` Artur Petrosyan
2018-09-25 17:59                   ` John Stultz
2018-09-26  6:02                     ` Artur Petrosyan
     [not found]                       ` <CALAqxLWOBFO_CjfBFNwbC+qNjtK=TgYrPusb4r5-dThBD5bVnw@mail.gmail.com>
2018-10-01  6:56                         ` Artur Petrosyan
2018-09-27 12:33                     ` Artur Petrosyan [this message]
2018-09-28 18:32                       ` John Stultz
2018-10-01  7:06                         ` Artur Petrosyan

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