linux-kernel - Re: [PATCH v2] usb: isp1760: add peripheral/device controller chip id

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Message-ID: <54F73B2B.3050305@arm.com>
Date:	Wed, 04 Mar 2015 17:04:43 +0000
From:	Sudeep Holla <sudeep.holla@....com>
To:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
CC:	Sudeep Holla <sudeep.holla@....com>, Felipe Balbi <balbi@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2] usb: isp1760: add peripheral/device controller chip
 id



On 04/03/15 16:11, Laurent Pinchart wrote:
> Hi Sudeep,
>
> On Wednesday 04 March 2015 15:56:12 Sudeep Holla wrote:

[...]

>>
>> Also I don't see any message on the host side. Let me know if there's
>> something wrong in my config or test commands.
>
> Looks like a driver bug to me, .udc_start() and .udc_stop() should use
> spin_(un)lock_irq(). Would you like to submit a patch ? I can also do it.
>

Thanks for the quick response. Yes I can submit that as I do have the
patch already. Though it removes above dump for possible deadlock, it's
still not working. So I was not sure if that's the right fix. Anyways I
will post that patch and you can review :)

BTW, if you see above the log also contains "g_mass_storage gadget:
userspace failed to provide iSerialNumber". Is this OK ? or is this the
reason for not seeing any activity on host side.

Regards,
Sudeep

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