linux-kernel - Re: [PATCH V3 7/7] arm64: dts: imx8mp: add interconnect for hsio blk ctrl

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Message-ID: <b23a44ab-3666-8a41-d2a0-0d2fbdbd9f00@pengutronix.de>
Date:   Mon, 27 Mar 2023 09:16:33 +0200
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Greg Ungerer <gerg@...ux-m68k.org>
Cc:     peng.fan@....com, laurent.pinchart@...asonboard.com,
        krzysztof.kozlowski+dt@...aro.org, festevam@...il.com,
        abelvesa@...nel.org, marex@...x.de, Markus.Niebel@...tq-group.com,
        paul.elder@...asonboard.com, gerg@...nel.org, linux-imx@....com,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
        s.hauer@...gutronix.de, robh+dt@...nel.org, aford173@...il.com,
        linux-kernel@...r.kernel.org, kernel@...gutronix.de,
        djakov@...nel.org, l.stach@...gutronix.de, shawnguo@...nel.org,
        abailon@...libre.com,
        Alexander Stein <alexander.stein@...tq-group.com>,
        "Peng Fan (OSS)" <peng.fan@....nxp.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH V3 7/7] arm64: dts: imx8mp: add interconnect for hsio blk
 ctrl

Hello Greg,

On 27.03.23 08:27, Alexander Stein wrote:
> Am Montag, 27. März 2023, 06:50:37 CEST schrieb Greg Ungerer:
>> Any thoughts on why this breaks USB?
> 
> Maybe you are missing CONFIG_INTERCONNECT_IMX8MP?

And if that's the case, did you check /sys/kernel/debug/devices_deferred
to see if there was any indication that this is the reason?

If you didn't find any hint there, you might want to place a
dev_err_probe with a suitable message at the place where -EPROBE_DEFER
was returned.

Cheers,
Ahmad

> 
> Best regards,
> Alexander
> 

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