thermal/drivers/int340x: Improve the tcc offset saving for suspend/resume

thermal/drivers/int340x: Improve the tcc offset saving for suspend/resume

commit c4fcf1ada4ae63e0aab6afd19ca2e7d16833302c upstream.

When the driver resumes, the tcc offset is set back to its previous
value. But this only works if the value was user defined as otherwise
the offset isn't saved. This asymmetric logic is harder to maintain and
introduced some issues.

Improve the logic by saving the tcc offset in a suspend op, so the right
value is always restored after a resume.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Tested-by: Srinivas Pandruvada <srinivas.pI andruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20210909085613.5577-3-atenart@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>