linux-kernel - Re: Suspend/resume failing due to SPD5118

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Message-ID: <f1ef9677-2650-48e3-834a-fbe9e2830b04@roeck-us.net>
Date: Fri, 2 May 2025 18:40:42 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Luca Carlon <carlon.luca@...il.com>
Cc: jdelvare@...e.com, linux-hwmon@...r.kernel.org,
 linux-kernel@...r.kernel.org, lucas.demarchi@...el.com
Subject: Re: Suspend/resume failing due to SPD5118

On 5/2/25 17:58, Luca Carlon wrote:
>>  From the context it looks like the "sensors" command was never executed. To get
>> another data point, it would help if you could load the driver, run the "sensors"
>> command, and then try to hibernate.
> 
> Hello,
> 
> yes, I did not have the sensors command installed.
> 
> I removed SPD5118 from the blacklist and I rebooted the system. This is what the
> "sensors" command is reporting after the boot:
> 
> spd5118-i2c-1-50
> Adapter: SMBus I801 adapter at efa0
> ERROR: Can't get value of subfeature temp1_lcrit_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_min_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_max_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_crit_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_min: Can't read
> ERROR: Can't get value of subfeature temp1_max: Can't read
> ERROR: Can't get value of subfeature temp1_lcrit: Can't read
> ERROR: Can't get value of subfeature temp1_crit: Can't read
> temp1:            N/A  (low  =  +0.0°C, high =  +0.0°C)
>                         (crit low =  +0.0°C, crit =  +0.0°C)
> 
> [...]
> 
> spd5118-i2c-1-51
> Adapter: SMBus I801 adapter at efa0
> ERROR: Can't get value of subfeature temp1_lcrit_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_min_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_max_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_crit_alarm: Can't read
> ERROR: Can't get value of subfeature temp1_min: Can't read
> ERROR: Can't get value of subfeature temp1_max: Can't read
> ERROR: Can't get value of subfeature temp1_lcrit: Can't read
> ERROR: Can't get value of subfeature temp1_crit: Can't read
> temp1:            N/A  (low  =  +0.0°C, high =  +0.0°C)
>                         (crit low =  +0.0°C, crit =  +0.0°C)
> 

That means there is a problem with the I2C controller, and you'll have to
black-list the driver. I don't have a better solution, sorry.

Guenter

> I then tried to hibernate. Hibernation failed and the output of the "sensors"
> command did not change.
> 
> I also tried to rmmod spd5118 and modprobe it. The output of the sensors
> command does not show spd5118 anymore.
> 
> Hope I did what you asked properly.
> Thanks for your answer.
> 
> Luca Carlon