[POWERPC] Remove old interface find_path_device

Replaced by of_find_node_by_path.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 33 insertions, 17 deletions

diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index b23e39796a0..de776e3889e 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -185,10 +185,9 @@ setup_python(struct pci_controller *hose, struct device_node *dev)
 /* Marvell Discovery II based Pegasos 2 */
 static void __init setup_peg2(struct pci_controller *hose, struct device_node *dev)
 {
-	struct device_node *root = find_path_device("/");
+	struct device_node *root = of_find_node_by_path("/");
 	struct device_node *rtas;
 
-	of_node_get(root);
 	rtas = of_find_node_by_name (root, "rtas");
 	if (rtas) {
 		hose->ops = &rtas_pci_ops;
@@ -198,6 +197,7 @@ static void __init setup_peg2(struct pci_controller *hose, struct device_node *d
 			" your firmware\n");
 	}
 	pci_assign_all_buses = 1;
+	/* keep the reference to the root node */
 }
 
 void __init
@@ -210,7 +210,7 @@ chrp_find_bridges(void)
 	const unsigned int *dma;
 	const char *model, *machine;
 	int is_longtrail = 0, is_mot = 0, is_pegasos = 0;
-	struct device_node *root = find_path_device("/");
+	struct device_node *root = of_find_node_by_path("/");
 	struct resource r;
 	/*
 	 * The PCI host bridge nodes on some machines don't have
@@ -309,6 +309,7 @@ chrp_find_bridges(void)
 			printk("pci_dram_offset = %lx\n", pci_dram_offset);
 		}
 	}
+	of_node_put(root);
 }
 
 /* SL82C105 IDE Control/Status Register */
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 05d1bc0c891..e46c4d4a580 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -110,7 +110,7 @@ void chrp_show_cpuinfo(struct seq_file *m)
 	struct device_node *root;
 	const char *model = "";
 
-	root = find_path_device("/");
+	root = of_find_node_by_path("/");
 	if (root)
 		model = of_get_property(root, "model", NULL);
 	seq_printf(m, "machine\t\t: CHRP %s\n", model);
@@ -160,6 +160,7 @@ void chrp_show_cpuinfo(struct seq_file *m)
 			   gg2_cachetypes[(t>>2) & 3],
 			   gg2_cachemodes[t & 3]);
 	}
+	of_node_put(root);
 }
 
 /*
@@ -204,7 +205,7 @@ static void __init sio_init(void)
 {
 	struct device_node *root;
 
-	if ((root = find_path_device("/")) &&
+	if ((root = of_find_node_by_path("/")) &&
 	    !strncmp(of_get_property(root, "model", NULL),
 			"IBM,LongTrail", 13)) {
 		/* logical device 0 (KBC/Keyboard) */
@@ -212,6 +213,7 @@ static void __init sio_init(void)
 		/* select logical device 1 (KBC/Mouse) */
 		sio_fixup_irq("mouse", 1, 12, 2);
 	}
+	of_node_put(root);
 }
 
 
@@ -250,7 +252,7 @@ static void briq_restart(char *cmd)
 
 void __init chrp_setup_arch(void)
 {
-	struct device_node *root = find_path_device ("/");
+	struct device_node *root = of_find_node_by_path("/");
 	const char *machine = NULL;
 
 	/* init to some ~sane value until calibrate_delay() runs */
@@ -273,6 +275,7 @@ void __init chrp_setup_arch(void)
 		/* Let's assume it is an IBM chrp if all else fails */
 		_chrp_type = _CHRP_IBM;
 	}
+	of_node_put(root);
 	printk("chrp type = %x [%s]\n", _chrp_type, chrp_names[_chrp_type]);
 
 	rtas_initialize();
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 103fcc4c560..44f85507db3 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -1044,6 +1044,7 @@ core99_reset_cpu(struct device_node *node, long param, long value)
 	unsigned long flags;
 	struct macio_chip *macio;
 	struct device_node *np;
+	struct device_node *cpus;
 	const int dflt_reset_lines[] = {	KL_GPIO_RESET_CPU0,
 						KL_GPIO_RESET_CPU1,
 						KL_GPIO_RESET_CPU2,
@@ -1053,10 +1054,10 @@ core99_reset_cpu(struct device_node *node, long param, long value)
 	if (macio->type != macio_keylargo)
 		return -ENODEV;
 
-	np = find_path_device("/cpus");
-	if (np == NULL)
+	cpus = of_find_node_by_path("/cpus");
+	if (cpus == NULL)
 		return -ENODEV;
-	for (np = np->child; np != NULL; np = np->sibling) {
+	for (np = cpus->child; np != NULL; np = np->sibling) {
 		const u32 *num = of_get_property(np, "reg", NULL);
 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
 		if (num == NULL || rst == NULL)
@@ -1066,6 +1067,7 @@ core99_reset_cpu(struct device_node *node, long param, long value)
 			break;
 		}
 	}
+	of_node_put(cpus);
 	if (np == NULL || reset_io == 0)
 		reset_io = dflt_reset_lines[param];
 
@@ -1497,15 +1499,16 @@ static long g5_reset_cpu(struct device_node *node, long param, long value)
 	unsigned long flags;
 	struct macio_chip *macio;
 	struct device_node *np;
+	struct device_node *cpus;
 
 	macio = &macio_chips[0];
 	if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
 		return -ENODEV;
 
-	np = find_path_device("/cpus");
-	if (np == NULL)
+	cpus = of_find_node_by_path("/cpus");
+	if (cpus == NULL)
 		return -ENODEV;
-	for (np = np->child; np != NULL; np = np->sibling) {
+	for (np = cpus->child; np != NULL; np = np->sibling) {
 		const u32 *num = of_get_property(np, "reg", NULL);
 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
 		if (num == NULL || rst == NULL)
@@ -1515,6 +1518,7 @@ static long g5_reset_cpu(struct device_node *node, long param, long value)
 			break;
 		}
 	}
+	of_node_put(cpus);
 	if (np == NULL || reset_io == 0)
 		return -ENODEV;
 
@@ -2499,18 +2503,26 @@ found:
 	 * that all Apple OF revs did it properly, I do it the paranoid way.
 	 */
 	while (uninorth_base && uninorth_rev > 3) {
-		struct device_node *np = find_path_device("/cpus");
-		if (!np || !np->child) {
+		struct device_node *cpus = of_find_node_by_path("/cpus");
+		struct device_node *np;
+
+		if (!cpus || !cpus->child) {
 			printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
+			of_node_put(cpus);
 			break;
 		}
-		np = np->child;
+		np = cpus->child;
 		/* Nap mode not supported on SMP */
-		if (np->sibling)
+		if (np->sibling) {
+			of_node_put(cpus);
 			break;
+		}
 		/* Nap mode not supported if flush-on-lock property is present */
-		if (of_get_property(np, "flush-on-lock", NULL))
+		if (of_get_property(np, "flush-on-lock", NULL)) {
+			of_node_put(cpus);
 			break;
+		}
+		of_node_put(cpus);
 		powersave_nap = 1;
 		printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
 		break;