pm80xx: wait a minimum of 500ms before issuing commands to SPCv
pm80xx: wait a minimum of 500ms before issuing commands to SPCv

The documentation for the 8070 and 8072 SPCv chip explicitly states that
a minimum of 500ms must elapse before issuing commands, otherwise the
SPCv may not process them and the firmware may get into an unrecoverable
state requiring a reboot.  While the Linux guys will probably think this
is 'racy', it is called out in the chip documentation and inserting this
delay makes power management function properly.

Signed-off-by: Benjamin Rood <355d3191d77b2bdeff861dadf14f86ef7650e31c@attotech.com>
Reviewed-by: Jack Wang <5318d4131c3e14c217f7a13b953512ca706e6fe3@profitbricks.com>
Reviewed-by: Hannes Reinecke <b0d1e9e4a4e27620745ff49be9000da3174a4cc6@suse.de>
Signed-off-by: Martin K. Petersen <0384aaef27f06874adbdb09a807bb339f4aff9fd@oracle.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs