0946a05fd2
Suspend stats are not reported consistently due to a limitation in the PMC firmware. This limitation causes a delay in updating the s0ix counters and residencies in the telemetry log upon s0ix exit. As a consequence, reading these counters from the suspend-exit notifier may result in zero read. This patch fixes this issue by cross-verifying the s0ix residencies from the GCR TELEM registers in case the counters are not incremented in the telemetry log after suspend. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=197833 Reported-and-tested-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com> Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
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