Re: Regarding usb dwc3 core shutdown callback

From: Felipe Balbi
Date: Thu Aug 12 2021 - 05:09:15 EST



Hi,

(why isn't this email plain/text? Content Type was set to multipart
alternative, please configure your email client correctly :-)

While at that, also make sure to break lines at 80-columns)

Sandeep Maheswaram <sanm@xxxxxxxxxxxxxx> writes:
> Hi,
>
> Earlier I have posted the patch for usb dwc3 core shutdown callback
>
> https://lore.kernel.org/linux-arm-msm/1618380209-20114-1-git-send-email-sanm@xxxxxxxxxxxxxx/
>
> and it was reverted due to issues.

Right, as should be expected when we find regressions

> https://lore.kernel.org/linux-usb/20210603151742.298243-1-alexandru.elisei@xxxxxxx/
>
> As we already have shutdown callback in xhci plat driver where we halt
> the controller, so there will be no transactions with usb devices.
>
> https://lore.kernel.org/linux-usb/20200306092328.41253-1-ran.wang_1@xxxxxxx/
>
> So I think dwc3 core shutdown may not be required at least when we are
> using host mode. Let me know your opinion about this.

If that's the case, then sure. Please validate the condition, though,
and kindly report back on your findings

--
balbi