dm: serial: Convert ns16550 driver to use driver model PCI API

Use the driver model version of the function to find the BAR. This updates
the fdtdec function, of which ns16550 is the only user.

The fdtdec_get_pci_bdf() function is dropped for several reasons:
- with driver model we should use 'struct udevice *' rather than passing the
   device tree offset explicitly
- there are no other users in the tree
- the function parses for information which is already available in the PCI
device structure (specifically struct pci_child_platdata which is available
at dev_get_parent_platdata(dev)

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

1 files changed, 3 insertions, 20 deletions

diff --git a/include/fdtdec.h b/include/fdtdec.h
index d82dc35..7a1450c 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -445,32 +445,15 @@ int fdtdec_get_pci_vendev(const void *blob, int node,
 
 /**
  * Look at the pci address of a device node that represents a PCI device
- * and parse the bus, device and function number from it. For some cases
- * like the bus number encoded in reg property is not correct after pci
- * enumeration, this function looks through the node's compatible strings
- * to get these numbers extracted instead.
- *
- * @param blob		FDT blob
- * @param node		node to examine
- * @param addr		pci address in the form of fdt_pci_addr
- * @param bdf		returns bus, device, function triplet
- * @return 0 if ok, negative on error
- */
-int fdtdec_get_pci_bdf(const void *blob, int node,
-		struct fdt_pci_addr *addr, pci_dev_t *bdf);
-
-/**
- * Look at the pci address of a device node that represents a PCI device
  * and return base address of the pci device's registers.
  *
- * @param blob		FDT blob
- * @param node		node to examine
+ * @param dev		device to examine
  * @param addr		pci address in the form of fdt_pci_addr
  * @param bar		returns base address of the pci device's registers
  * @return 0 if ok, negative on error
  */
-int fdtdec_get_pci_bar32(const void *blob, int node,
-		struct fdt_pci_addr *addr, u32 *bar);
+int fdtdec_get_pci_bar32(struct udevice *dev, struct fdt_pci_addr *addr,
+			 u32 *bar);
 
 /**
  * Look up a 32-bit integer property in a node and return it. The property