PInctrl driver doesn't work, Up board 7000 with Ubuntu 20.04

CyB0rG

We followed the instructions to install the pinctrl driver, but it doesn't work, we can't contorl the LEDs, GPIOs are not available, nor spi or uart.
Dmesg we see this problem:
upboard-pinctrl upboard-pinctrl.1.auto: probe deferral not supported

please advise

HarryChiu

Hi @CyB0rG

Could you please provide more informations??
What is your bios & kernel version??

Best Regards,
Harry Chiu

CyB0rG

Hello,

We are using Ubuntu Server 20.04.6 with Kernel 5.4.0-144-generic, and BIOS version is: UP-ADLN01 R1.2

CyB0rG

I also updated the BIOS to 1.7, reinstalled ubuntu 20.04 (5.4.0-144-generic) and pinctrl driver, and still can't access the pins

HarryChiu

Hi @CyB0rG

Sorry for late reply.

The kernel you are using (5.4.0-144-generic) does not contain the driver required by pinctrl.

Please install the iotg kernel with apt server and try again.
5.15.0-1055-intel-iotg

Best Regards,
Harry Chiu

oysstu

@HarryChiu is the iotg kernel necessary for newer kernels as well, or is this only needed for ubuntu 20.04/5.4.0?

HarryChiu

Hi @oysstu

Do you want to use pinctrl under ubuntu 20.04??
Only kernel 5.15.0-1055-intel-iotg, which contains the driver required by pinctrl, can be used.

Or you can use ubuntu 22.04, almost all kernels above 5.19 support it.

Best Regards,
Harry Chiu