[PATCH Part1 v11 3/5] PCI: designware: Use pci_scan_root_bus() for simplicity

[Yijing Wang <wangyijing@huawei.com>]

Pci_bus_add_devices() was ripped out of pci_scan_root_bus().
Now pci_scan_root_bus() == pci_create_root_bus() +
pci_scan_child_bus() if busn resource is supplied.
Designware added the busn resource to resources list
in dw_pcie_setup(). So it should be safe to use
pci_scan_root_bus() instead.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: Mohit Kumar <mohit.kumar@st.com>
CC: Jingoo Han <jg1.han@samsung.com>
---
 drivers/pci/host/pcie-designware.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 2e9f84f..8c80f38 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -728,13 +728,11 @@ static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 	struct pcie_port *pp = sys_to_pcie(sys);
 
 	pp->root_bus_nr = sys->busnr;
-	bus = pci_create_root_bus(pp->dev, sys->busnr,
+	bus = pci_scan_root_bus(pp->dev, sys->busnr,
 				  &dw_pcie_ops, sys, &sys->resources);
 	if (!bus)
 		return NULL;
 
-	pci_scan_child_bus(bus);
-
 	if (bus && pp->ops->scan_bus)
 		pp->ops->scan_bus(pp);
 
-- 
1.7.1