Hi Greg, On 23-03-28, Greg Ungerer wrote: > Hi Marco, > > On 28/3/23 17:33, Marco Felsch wrote: > > 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. > > I do not have that enabled. Enabling that fixes the USB probing. > So that is good, thanks. > > It doesn't fix the other problem I mentioned with the vpu pgc nodes though. > I do get some extra messages now with this enabled and the 6.1 kernel: > > imx-pgc imx-pgc-domain.8: failed to command PGC > imx-pgc imx-pgc-domain.8: failed to command PGC > imx8m-blk-ctrl 38330000.blk-ctrl: deferred probe timeout, ignoring dependency > imx8m-blk-ctrl 38330000.blk-ctrl: error -110: failed to attach power domain "g1" > imx8m-blk-ctrl: probe of 38330000.blk-ctrl failed with error -110 Okay, this seems more like a "real" issue not related to some missing drivers. I followed the code and found a poll within the imx_pgc_power_up() in gpcv2.c. Power-domain 8 is the vpumix domain which is used as power-domain for the g1 power-domain. My assumption is that this poll does run into the timeout. Maybe Peng can support you here since I didn't had the time for to test the VPUs yet and he did the integration patches. Just ignore the errors if you don't use the VPUs or disable the blk-ctrl@38330000 node via status = "disabled". Regards, Marco
