soc/intel/common/block/pcie/rtd3: Skip Power On if _STA returns 1

RTD3,_ON method sometimes can create delays during system boot.
Even when the power is already up, kernel still tries to call _ON
method to power up device, but it's unnecessary.

RTD3._STA returns device power, so _ON method can check _STA and see
if the power on process can be skipped

BUG=b:249931687
TEST=system can boot to OS with RTD3 pcie storage and save ~80 ms on
     Crota. Suspend stress test passes 100 cycles

Change-Id: I296ce1b85417a5dbaca558511cd7fc51a3a38c84
Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69189
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>

0 files changed, 0 insertions, 0 deletions