Re: Suspend/resume failing due to SPD5118

From: Luca Carlon
Date: Fri May 02 2025 - 20:33:49 EST


> Interesting, please check which i2c controller handles the SPD5118 chip (cat /sys/bus/i2c/devices/i2c-1/name).

$ cat /sys/bus/i2c/devices/i2c-1/name
SMBus I801 adapter at efa0

> Can you access the i2c bus (using i2cdetect) and/or the spd5118 chip after such a failed resume attempt?

In my case, the suspend fails, and therefore I do not think I can reach the resume.

However, if you mean to list the installed busses, this is the list before trying to suspend:

i2c-0 unknown Synopsys DesignWare I2C adapter N/A
i2c-1 unknown SMBus I801 adapter at efa0 N/A
i2c-2 i2c i915 gmbus dpa I2C adapter
i2c-3 i2c i915 gmbus dpb I2C adapter
i2c-4 i2c i915 gmbus dpc I2C adapter
i2c-5 i2c i915 gmbus dpd I2C adapter
i2c-6 i2c i915 gmbus tc1 I2C adapter
i2c-7 i2c AUX A/DDI A/PHY A I2C adapter
i2c-8 i2c AUX C/DDI C/PHY C I2C adapter
i2c-9 i2c AUX D/DDI D/PHY D I2C adapter

after the failed attempt, the list is unchanged.

If this is not what you wanted, please let me know, I can try to provide more info.

Thank you.

Luca Carlon