PCI: hisi: Fix hisi_pcie_cfg_read() 32-bit reads
authorDongdong Liu <liudongdong3@huawei.com>
Fri, 4 Dec 2015 22:32:25 +0000 (16:32 -0600)
committerBjorn Helgaas <bhelgaas@google.com>
Fri, 4 Dec 2015 22:32:25 +0000 (16:32 -0600)
commit1dbe162d53e11665b48a1c122899ffc2c068bef4
tree9b13509d3fa6afcb6cf3a5d9f70c4ab295bb3a05
parent99496bd2971fc378226ad4413e5b72c4545714bd
PCI: hisi: Fix hisi_pcie_cfg_read() 32-bit reads

For 32-bit config reads (size == 4), hisi_pcie_cfg_read() returned success
but never filled in the data we read.

Return the register data for 32-bit config reads.

Without this fix, PCI doesn't work at all because enumeration depends on
32-bit config reads.  The driver was tested internally, but got broken in
the process of upstreaming, so this fixes the breakage.

Fixes: 500a1d9a43e0 ("PCI: hisi: Add HiSilicon SoC Hip05 PCIe driver")
Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
drivers/pci/host/pcie-hisi.c