linux-kernel - Re: [RESEND PATCH 1/3] usb: dwc3: Don't reinitialize core during host bus-suspend/resume

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Message-ID: <05b7a9d6-0b52-5650-1812-359e0b6c5ea4@codeaurora.org>
Date:   Tue, 16 Jan 2018 12:06:28 +0530
From:   Manu Gautam <mgautam@...eaurora.org>
To:     Roger Quadros <rogerq@...com>, Felipe Balbi <balbi@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>,
        linux-omap <linux-omap@...r.kernel.org>
Subject: Re: [RESEND PATCH 1/3] usb: dwc3: Don't reinitialize core during host
 bus-suspend/resume

Hi Roger,


On 1/15/2018 9:10 PM, Roger Quadros wrote:
> Hi Manu,
[snip]
>> I think it will be better to separate runtime_suspend and pm_suspend handling for
>> host mode in dwc3. Powering offf/on PHYs and dwc3_core_exit/init across system
>> suspend-resume should be ok but doing that for runtime suspend-resume is not
>> correct.
>> Let me know if that sounds ok, I can provide a patch for same instead of
>> reverting this which affects runtime PM with dwc3 host.
>> Also, we need to consider dwc3 in Host mode with dr_mode as DRD/OTG similar to
>> dr_mode as HOST.
>>
>>
> Are you going to provide a patch for this any time soon?
>
> FYI, suspend/resume is broken on DRA7x with Dual-role while in host mode.
>

Posted following patch: https://patchwork.kernel.org/patch/10166077/
Let me know if this works for you.

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