[Very RFC 36/46] powernv/npu: Remove open-coded PE lookup for GPU device

[Oliver O'Halloran]

Signed-off-by: Oliver O'Halloran <ooh...@gmail.com>
---
 arch/powerpc/platforms/powernv/npu-dma.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/npu-dma.c 
b/arch/powerpc/platforms/powernv/npu-dma.c
index b95b9e3c4c98..68bfaef44862 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -97,25 +97,16 @@ EXPORT_SYMBOL(pnv_pci_get_npu_dev);
 static struct pnv_ioda_pe *get_gpu_pci_dev_and_pe(struct pnv_ioda_pe *npe,
                                                  struct pci_dev **gpdev)
 {
-       struct pnv_phb *phb;
-       struct pci_controller *hose;
        struct pci_dev *pdev;
        struct pnv_ioda_pe *pe;
-       struct pci_dn *pdn;
 
        pdev = pnv_pci_get_gpu_dev(npe->pdev);
        if (!pdev)
                return NULL;
 
-       pdn = pci_get_pdn(pdev);
-       if (WARN_ON(!pdn || pdn->pe_number == IODA_INVALID_PE))
-               return NULL;
-
-       hose = pci_bus_to_host(pdev->bus);
-       phb = hose->private_data;
-       pe = &phb->ioda.pe_array[pdn->pe_number];
+       pe = pnv_ioda_get_pe(pdev);
 
-       if (gpdev)
+       if (pe && pdev)
                *gpdev = pdev;
 
        return pe;
-- 
2.21.0