[iMX8QM-MEK] pin_config_set op faild for pin 9

[sushi_happy]

Hi.

When iMX8QM-MEK boots, the following message is output on the console.

What does that mean?

and How can I solve it?

[ 1.947052] imx8qm-pinctrl scu:pinctrl: pin_config_set op failed for pin 9

[Rita_Wang]

Sorry for miss your thread and late reply.

Could you tell us which BSP are you using? And share us your steps

[sushi_happy]

Thank you @Rita_Wang .

The BSP I'm using is Android-11.0.0_2.6.0.
I downloaded it from i.MX 8QuadMax/QuadPlus Multisensory Enablement Kit | NXP Semiconductors.

The image of M4 has not been changed.

See [iMX8QM-MEK] LPUART4 settings - NXP Community for my steps.

[sushi_happy · Accepted solution]

By changing the pin assignment in scfw and excluding the target pin from the assignment, the error disappeared.

See Solved: [iMX8QM-MEK] LPUART4 settings - NXP Community

, and Solved: [iMX8QM] What's this error code of imx mean? - NXP Community

[sushi_happy]

I found the following two descriptions in pads-imx8qm.h (/kernel_imx/include/dt-bindings/pinctrl).
#define IMX8QM_M40_GPIO0_00_DMA_UART_RX IMX8QM_M40_GPIO0_00 2
#define IMX8QM_M40_GPIO0_00 9

In other words, it turns out that "9" is like the ID of "M40_GPIO0_00" given by NXP.

It seems that the setting of "M40_GPIO0_00" has failed, but this error has not been resolved yet.