b9a4fa6978
Even the FCH SSC registers provides certain level of information about the s0ix entry and exit times which comes handy when the SMU fails to report the statistics via the mailbox communication. This information is captured via a new debugfs file "s0ix_stats". A non-zero entry in this counters would mean that the system entered the s0ix state. If s0ix entry time and exit time don't change during suspend to idle, the silicon has not entered the deepest state. Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20210629084803.248498-6-Shyam-sundar.S-k@amd.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
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