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SubjectRe: [PATCH V3 7/7] arm64: dts: imx8mp: add interconnect for hsio blk ctrl
Hi Greg,

On 23-03-27, Greg Ungerer wrote:
> 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.

Can you check that CONFIG_ARM_IMX_BUS_DEVFREQ is enabled? This is the
noc/interconnect driver. This could also the problem for you vpu issue.

Regards,
Marco


>
> Thanks
> Greg
>
>
>
>

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