Re: Suspend/resume failing due to SPD5118

[Armin Wolf <W_Armin@gmx.de>]

Am 05.05.25 um 01:31 schrieb Guenter Roeck:

> On 5/4/25 11:41, Luca Carlon wrote:
> ...
>> When I was told that the problem may lie in the i2c bus, I started to 
>> search elsewhere
>> and this thread came up: 
>> https://bugzilla.kernel.org/show_bug.cgi?id=213345. I
>> therefore provided in that thread some more info I collected.
>>
>
> From there:
>
> [    5.416572] i801_smbus 0000:00:1f.4: SPD Write Disable is set
>
> I think you are out of luck. The above is incompatible with spd5118 
> devices;
> See [1] for details. I don't immediately see why that would cause the 
> i2c bus
> to lock up, but even if it didn't lock up the bus I don't see a means 
> to get
> this to work.
>
> It is still puzzling that reading the i2c data using i2cdump fails. 
> The spd5118
> driver should not even probe if that is the case. Maybe Armin has an 
> idea.
>
> Guenter

I have an idea, see the bugzilla post for details.

Thanks,
Armin Wolf

>
> ---
> [1] 
> https://lore.kernel.org/linux-i2c/20250430-for-upstream-i801-spd5118-no-instantiate-v2-0-2f54d91ae2c7@canonical.com/
>
>