iMX8MM USB issue on custom pcb

shai_b — Mon, 25 Apr 2022 16:41:11 GMT

Dear team,

My customer has a custom PCB with imx8mm chipset (based on NXP reference design) .

when the customer is trying to plug into the USB port a USB devices (such as Keyborad or USB camera)

got the the following error:

[ 349.055891] usb 1-1: USB disconnect, device number 4

[ 365.568490] usb 1-1: new high-speed USB device number 5 using ci_hdrc

[ 365.769128] uvcvideo: Found UVC 1.00 device UVC Full HD Camera (1c5f:0070)

[ 365.785484] uvcvideo 1-1:1.0: Entity type for entity Extension 3 was not initialized!

[ 365.793370] uvcvideo 1-1:1.0: Entity type for entity Processing 2 was not initialized!

[ 365.801323] uvcvideo 1-1:1.0: Entity type for entity Camera 1 was not initialized!

[ 365.809294] input: UVC Full HD Camera: Thin USB Ca as /devices/platform/32e40000.usb/ci_hdrc.0/usb1/1-1/1-1:1.0/input/input8

[ 365.822665] ak4458 2-0010: Failed to get supply 'DVDD': -517

[ 365.828408] ak4458 2-0010: Failed to request supplies: -517

[ 365.834373] ak4458 2-0012: Failed to get supply 'DVDD': -517

[ 365.840080] ak4458 2-0012: Failed to request supplies: -517

[ 365.845991] ak4497 2-0011: Failed to get supply 'DVDD': -517

[ 365.851692] ak4497 2-0011: Failed to request supplies: -517

[ 365.857621] ak5558 2-0013: Failed to get supply 'DVDD': -517

[ 365.863323] ak5558 2-0013: Failed to request supplies: -517

[ 365.870099] imx-ak4458 sound-ak4458: ASoC: CODEC DAI ak4458-aif not registered

[ 365.877381] imx-ak4458 sound-ak4458: snd_soc_register_card failed (-517)

Could you please advise back if it's SW or HW issue according to the error log above, Waiting for your kind feedback?

Thanks in advance.

KR,

Shai

Re: iMX8MM USB issue on custom pcb

AldoG — Fri, 29 Apr 2022 19:01:30 GMT

Hello,

Those errors are related to the audio codecs that are used in the i.MX audio board.

So this should be just a software issue, but you may try by erase/disable those entries from device tree to get rid of the errors reported in kernel.

Best regards,
Aldo.

Re: iMX8MM USB issue on custom pcb

shai_b — Sun, 01 May 2022 11:36:45 GMT

Thank @AldoG , I will check it out the let you know if it works.

Thanks a lot.

KR,

Shai

topic Re: iMX8MM USB issue on custom pcb in i.MX Processors

iMX8MM USB issue on custom pcb

Re: iMX8MM USB issue on custom pcb

Re: iMX8MM USB issue on custom pcb