[POWERPC] Rename prom_n_size_cells to of_n_size_cells

This is more consistent and gets us closer to the Sparc code.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 08d6197..2890ce3 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1056,8 +1056,7 @@
 }
 EXPORT_SYMBOL(of_n_addr_cells);
 
-int
-prom_n_size_cells(struct device_node* np)
+int of_n_size_cells(struct device_node* np)
 {
 	const int* ip;
 	do {
@@ -1070,7 +1069,7 @@
 	/* No #size-cells property for the root node, default to 1 */
 	return 1;
 }
-EXPORT_SYMBOL(prom_n_size_cells);
+EXPORT_SYMBOL(of_n_size_cells);
 
 /**
  * Construct and return a list of the device_nodes with a given name.
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index e3d036f..ba9c7c1 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -70,7 +70,7 @@
 	if (addrc)
 		*addrc = of_n_addr_cells(dev);
 	if (sizec)
-		*sizec = prom_n_size_cells(dev);
+		*sizec = of_n_size_cells(dev);
 }
 
 static u64 of_bus_default_map(u32 *addr, const u32 *range,
@@ -660,7 +660,7 @@
 	dma_window += cells;
 
 	prop = get_property(dn, "ibm,#dma-size-cells", NULL);
-	cells = prop ? *(u32 *)prop : prom_n_size_cells(dn);
+	cells = prop ? *(u32 *)prop : of_n_size_cells(dn);
 	*size = of_read_number(dma_window, cells);
 }
 
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index f7ef5a9..640ff0d 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -380,7 +380,7 @@
 		const unsigned int *ireg;
 
 		num_addr_cell = of_n_addr_cells(dn);
-		num_size_cell = prom_n_size_cells(dn);
+		num_size_cell = of_n_size_cells(dn);
 
 		ireg = get_property(dn, "ibm,lrdr-capacity", NULL);