[PATCH][SRU][OEM-5.14] Fix s0i3 entry errors for AMD platforms
Alex Hung
alex.hung at canonical.com
Fri Sep 24 01:00:16 UTC 2021
BugLink: https://bugs.launchpad.net/bugs/1943633
[Impact]
amd-pmc times out communicating with the SMU over stress testing cycles like:
> amd_pmc AMDI0005:00: SMU response timed out
> amd_pmc AMDI0005:00: failed to talk to SMU
> amd_pmc AMDI0005:00: suspend failed
> PM: dpm_run_callback(): acpi_subsys_suspend_noirq+0x0/0x50 returns -110
[Fix]
Increase the timeout to 2000ms that matches to GPU driver.
[Test]
This is requested by AMD.
[Where problems could occur]
Low risk. This only affects small number of AMD systems that would excess the
original timeout with low fail rate 0.9%-1.7%. In worst case scenario it would
only takes time up to 2 seconds.
Mario Limonciello (1):
platform/x86: amd-pmc: Increase the response register timeout
drivers/platform/x86/amd-pmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--
2.7.4
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