RE: [PATCH 1/1] scsi: ufs-pci: Force a full restore after suspend-to-disk

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> Implement the ->restore() PM operation and set the link to off, which
> will force a full reset and restore.  This ensures that Host Performance
> Booster is reset after suspend-to-disk.
> 
> The Host Performance Booster feature caches logical-to-physical mapping
> information in the host memory.  After suspend-to-disk, such information
> is not valid, so a full reset and restore is needed.
> 
> A full reset and restore is done if the SPM level is 5 or 6, but not for
> other SPM levels, so this change fixes those cases.
It is perfectly fine for you to do that on your platform, if you choose so - 
Hence my reviewed-by.
But the reasoning is a bit odd, because you already set SSU4 for your spm-lvl,
And on SSU3 the device does not dump its internal tables.

Thanks,
Avri

> A full reset and restore also restores base address registers, so that
> code is removed.
> 
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Reviewed-by: Avri Altman <avri.altman@xxxxxxx>





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