Re: [PATCH RFT v3 3/4] hwmon: (spd5118) Add suspend/resume support

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On 6/3/24 05:31, Stephen Horvath wrote:
Hi,

On 1/6/24 09:05, Guenter Roeck wrote:
Add suspend/resume support to ensure that limit and configuration
registers are updated and synchronized after a suspend/resume cycle.

Cc: Armin Wolf <W_Armin@xxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
v3: No change

v2: New patch

RFT: I tested the patch through a suspend/resume cycle, and it seems
      to work, but I am not sure if that had any effect because,
      after all, the memory is still active during suspend/resume.
      I was unable to test a hibernation cycle with my system.


For me, the driver just reports 0°C after suspend/resume, but works fine beforehand, tested on both my desktop and laptop, with kernel 6.9.3 and 6.10.0-rc2 (on the laptop only).

Hibernation does seem to work fine though (at least on 6.9.3).


Thanks a lot for the report. I can confirm that this happens if the enable
attribute was not touched before the suspend/resume cycle. I'll send another
version with the fix.

Guenter






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