powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn
The pcidev value stored in pci_dn is only used for NPU/NPU2 initialization. We can easily drop the cached pointer and use an ancient helper - pci_get_domain_bus_and_slot() instead in order to reduce complexity. Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru> Acked-by: NRussell Currey <ruscur@russell.cc> Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
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