dm: pci: remove pci_bus_to_hose(0) calling

There may be multiple PCIe controllers in a SoC.
It is not correct that always calling pci_bus_to_hose(0) to get
the first PCIe controller for the PCIe device connected other
controllers. We just remove this calling because hose always point
the correct PCIe controller.

Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <york.sun@nxp.com>

drivers/pci/pci_common.c

@@ -181,11 +181,6 @@ phys_addr_t pci_hose_bus_to_phys(struct pci_controller *hose,
 		return phys_addr;
 	}
 
-#ifdef CONFIG_DM_PCI
-	/* The root controller has the region information */
-	hose = pci_bus_to_hose(0);
-#endif
-
 	/*
 	 * if PCI_REGION_MEM is set we do a two pass search with preference
 	 * on matches that don't have PCI_REGION_SYS_MEMORY set
@@ -236,6 +231,13 @@ int __pci_hose_phys_to_bus(struct pci_controller *hose,
 	return 1;
 }
 
+/*
+ * pci_hose_phys_to_bus(): Convert physical address to bus address
+ * @hose:	PCI hose of the root PCI controller
+ * @phys_addr:	physical address to convert
+ * @flags:	flags of pci regions
+ * @return bus address if OK, 0 on error
+ */
 pci_addr_t pci_hose_phys_to_bus(struct pci_controller *hose,
 				phys_addr_t phys_addr,
 				unsigned long flags)
@@ -248,11 +250,6 @@ pci_addr_t pci_hose_phys_to_bus(struct pci_controller *hose,
 		return bus_addr;
 	}
 
-#ifdef CONFIG_DM_PCI
-	/* The root controller has the region information */
-	hose = pci_bus_to_hose(0);
-#endif
-
 	/*
 	 * if PCI_REGION_MEM is set we do a two pass search with preference
 	 * on matches that don't have PCI_REGION_SYS_MEMORY set