linux-kernel - Re: [PATCH v2 2/3] usb: chipidea: imx: support disabling runtime-pm

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Date:   Mon, 17 Jul 2023 18:45:37 +0200
From:   Luca Ceresoli <luca.ceresoli@...tlin.com>
To:     Francesco Dolcini <francesco@...cini.it>
Cc:     Jun Li <jun.li@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "festevam@...il.com" <festevam@...il.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        dl-linux-imx <linux-imx@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Francesco Dolcini <francesco.dolcini@...adex.com>,
        Xu Yang <xu.yang_2@....com>
Subject: Re: [PATCH v2 2/3] usb: chipidea: imx: support disabling runtime-pm

Ciao Francesco,

On Thu, 6 Jul 2023 12:23:43 +0200
Francesco Dolcini <francesco@...cini.it> wrote:

> Hello Luca,
> 
> On Tue, May 30, 2023 at 11:22:51AM +0000, Jun Li wrote:
> > Yes, your understanding is correct, talked with Xu(in CC), he will take this
> > soon.  
> 
> A series was posted
> https://lore.kernel.org/all/20230627110353.1879477-1-xu.yang_2@nxp.com/,
> I had no time to try or look at it yet.

Thanks for keeping me up to date on this topic, which is still totally
relevant to me.

I looked at the series, but it does not seem to be addressing the
problem with USB host not detecting new devices when VBUS is not
directly connected, e.g. in the Colibri imx6ull SoM.

Xu, do you confirm the series at the link is _not_ solving the problem
being discussed here?

Best regards,

Luca

-- 
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com