Commit e8b1dee2 authored by Rob Herring's avatar Rob Herring
Browse files

of: Use device_type helpers to access the node type



Remove directly accessing device_node.type pointer and use the accessors
instead. This will eventually allow removing the type pointer.

Cc: Frank Rowand <frowand.list@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent e31d0fc6
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+2 −2
Original line number Diff line number Diff line
@@ -110,8 +110,8 @@ static int of_bus_pci_match(struct device_node *np)
	 * "vci" is for the /chaos bridge on 1st-gen PCI powermacs
	 * "ht" is hypertransport
	 */
	return !strcmp(np->type, "pci") || !strcmp(np->type, "pciex") ||
		!strcmp(np->type, "vci") || !strcmp(np->type, "ht");
	return of_node_is_type(np, "pci") || of_node_is_type(np, "pciex") ||
		of_node_is_type(np, "vci") || of_node_is_type(np, "ht");
}

static void of_bus_pci_count_cells(struct device_node *np,
+12 −6
Original line number Diff line number Diff line
@@ -79,6 +79,13 @@ bool of_node_name_prefix(const struct device_node *np, const char *prefix)
}
EXPORT_SYMBOL(of_node_name_prefix);

static bool __of_node_is_type(const struct device_node *np, const char *type)
{
	const char *match = __of_get_property(np, "device_type", NULL);

	return np && match && type && !strcmp(match, type);
}

int of_n_addr_cells(struct device_node *np)
{
	u32 cells;
@@ -482,7 +489,7 @@ static int __of_device_is_compatible(const struct device_node *device,

	/* Matching type is better than matching name */
	if (type && type[0]) {
		if (!device->type || of_node_cmp(type, device->type))
		if (!__of_node_is_type(device, type))
			return 0;
		score += 2;
	}
@@ -775,7 +782,7 @@ struct device_node *of_get_next_cpu_node(struct device_node *prev)
	}
	for (; next; next = next->sibling) {
		if (!(of_node_name_eq(next, "cpu") ||
		      (next->type && !of_node_cmp(next->type, "cpu"))))
		      __of_node_is_type(next, "cpu")))
			continue;
		if (of_node_get(next))
			break;
@@ -983,8 +990,7 @@ struct device_node *of_find_node_by_type(struct device_node *from,

	raw_spin_lock_irqsave(&devtree_lock, flags);
	for_each_of_allnodes_from(from, np)
		if (np->type && (of_node_cmp(np->type, type) == 0)
		    && of_node_get(np))
		if (__of_node_is_type(np, type) && of_node_get(np))
			break;
	of_node_put(from);
	raw_spin_unlock_irqrestore(&devtree_lock, flags);
@@ -2108,9 +2114,9 @@ struct device_node *of_find_next_cache_node(const struct device_node *np)
	/* OF on pmac has nodes instead of properties named "l2-cache"
	 * beneath CPU nodes.
	 */
	if (IS_ENABLED(CONFIG_PPC_PMAC) && !strcmp(np->type, "cpu"))
	if (IS_ENABLED(CONFIG_PPC_PMAC) && of_node_is_type(np, "cpu"))
		for_each_child_of_node(np, child)
			if (!strcmp(child->type, "cache"))
			if (of_node_is_type(child, "cache"))
				return child;

	return NULL;
+5 −4
Original line number Diff line number Diff line
@@ -209,7 +209,7 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len
	/* Name & Type */
	/* %p eats all alphanum characters, so %c must be used here */
	csize = snprintf(str, len, "of:N%pOFn%c%s", dev->of_node, 'T',
			 dev->of_node->type);
			 of_node_get_device_type(dev->of_node));
	tsize = csize;
	len -= csize;
	if (str)
@@ -279,7 +279,7 @@ EXPORT_SYMBOL_GPL(of_device_modalias);
 */
void of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
{
	const char *compat;
	const char *compat, *type;
	struct alias_prop *app;
	struct property *p;
	int seen = 0;
@@ -289,8 +289,9 @@ void of_device_uevent(struct device *dev, struct kobj_uevent_env *env)

	add_uevent_var(env, "OF_NAME=%pOFn", dev->of_node);
	add_uevent_var(env, "OF_FULLNAME=%pOF", dev->of_node);
	if (dev->of_node->type && strcmp("<NULL>", dev->of_node->type) != 0)
		add_uevent_var(env, "OF_TYPE=%s", dev->of_node->type);
	type = of_node_get_device_type(dev->of_node);
	if (type)
		add_uevent_var(env, "OF_TYPE=%s", type);

	/* Since the compatible field can contain pretty much anything
	 * it's not really legal to split it out with commas. We split it