linux-kernel - Re: [PATCH] arm64: dts: imx8mn-var-som-symphony: fix USB OTG

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Message-ID: <CAOMZO5AZiuEAh6nJB8Oub83At6bsvLhzOhsT_yOniZSucrAUMQ@mail.gmail.com>
Date:   Tue, 4 Jul 2023 20:00:13 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Hugo Villeneuve <hugo@...ovil.com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Pierluigi Passaro <pierluigi.p@...iscite.com>,
        Nate Drude <nate.d@...iscite.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8mn-var-som-symphony: fix USB OTG

On Tue, Jul 4, 2023 at 6:50 PM Fabio Estevam <festevam@...il.com> wrote:
>
> On Tue, Jul 4, 2023 at 6:28 PM Hugo Villeneuve <hugo@...ovil.com> wrote:
>
> > Hi Fabio,
> > it is important to remember that on this board, like I explained
> > before, the INTB pin is not connected to anything.
> >
> > It is only the ID pin (9) that is connected to the GPIO1_11 pin.
>
> Now I looked at the schematics and you are right.
>
> In this case, GPIO1_11 should not be represented as irq then.

Variscite added an "irq-is-id-quirk"  property on their tree to handle this:

https://github.com/varigit/linux-imx/commit/fbe6aa2a9c014fdb10b29a715a1be695dac60828