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Message-ID: <ecd3a92b-ba1e-e7c1-088a-371bd1a2c100@linux-m68k.org>
Date: Mon, 27 Mar 2023 18:07:41 +1000
From: Greg Ungerer <gerg@...ux-m68k.org>
To: Ahmad Fatoum <a.fatoum@...gutronix.de>
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
Hi Ahmad,
On 27/3/23 17:16, Ahmad Fatoum wrote:
> 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?
Yeah, it does:
# cat /sys/kernel/debug/devices_deferred
32f10100.usb platform: supplier 32f10000.blk-ctrl not ready
32f10108.usb platform: supplier 32f10000.blk-ctrl not ready
32ec0000.blk-ctrl imx8m-blk-ctrl: failed to get noc entries
381f0040.usb-phy platform: supplier 32f10000.blk-ctrl not ready
382f0040.usb-phy platform: supplier 32f10000.blk-ctrl not ready
imx-pgc-domain.11
imx-pgc-domain.12
imx-pgc-domain.13
38330000.blk-ctrl platform: supplier imx-pgc-domain.11 not ready
32f10000.blk-ctrl imx8mp-blk-ctrl: failed to get noc entries
As far as I can tell blk-ctrl should be good:
#
# i.MX SoC drivers
#
CONFIG_IMX_GPCV2_PM_DOMAINS=y
CONFIG_SOC_IMX8M=y
# CONFIG_SOC_IMX9 is not set
CONFIG_IMX8M_BLK_CTRL=y
# end of i.MX SoC drivers
> 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.
I will try that.
Thanks
Greg
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