of/flattree: use OF_ROOT_NODE_{SIZE,ADDR}_CELLS DEFAULT for fdt parsing

At present we're using hard-coded values for defaults when parsing the
FDT. This change uses the #defines instead.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 9290ca5..56fbd6e 100644 (file)
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -420,11 +420,11 @@ int __init early_init_dt_scan_root(unsigned long node, const char *uname,
                return 0;
 
        prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
-       dt_root_size_cells = (prop == NULL) ? 1 : *prop;
+       dt_root_size_cells = prop ? *prop : OF_ROOT_NODE_SIZE_CELLS_DEFAULT;
        pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
 
        prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
-       dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
+       dt_root_addr_cells = prop ? *prop : OF_ROOT_NODE_ADDR_CELLS_DEFAULT;
        pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
 
        /* break now */