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device property: Constify device child node APIs

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[ Upstream commit 7952cd2b8213f20a1752634c25dfd215da537722 ]

The device parameter is not altered in the device child node APIs,
constify them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20221004092129.19412-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 73b03b27736e ("leds: flash: mt6360: Fix device_for_each_child_node() refcounting in error paths")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andy Shevchenko 2022-10-04 12:21:28 +03:00 committed by Greg Kroah-Hartman
parent 3c2a6d4d02
commit 0ba045ab08
2 changed files with 9 additions and 9 deletions
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6
drivers/base/property.c
View File

@ -790,7 +790,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_next_available_child_node);
* fwnode pointer. Note that this function also puts a reference to @child * fwnode pointer. Note that this function also puts a reference to @child
* unconditionally. * unconditionally.
*/ */
struct fwnode_handle *device_get_next_child_node(struct device *dev, struct fwnode_handle *device_get_next_child_node(const struct device *dev,
struct fwnode_handle *child) struct fwnode_handle *child)
{ {
const struct fwnode_handle *fwnode = dev_fwnode(dev); const struct fwnode_handle *fwnode = dev_fwnode(dev);
@ -833,7 +833,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_named_child_node);
* The caller is responsible for calling fwnode_handle_put() on the returned * The caller is responsible for calling fwnode_handle_put() on the returned
* fwnode pointer. * fwnode pointer.
*/ */
struct fwnode_handle *device_get_named_child_node(struct device *dev, struct fwnode_handle *device_get_named_child_node(const struct device *dev,
const char *childname) const char *childname)
{ {
return fwnode_get_named_child_node(dev_fwnode(dev), childname); return fwnode_get_named_child_node(dev_fwnode(dev), childname);
@ -899,7 +899,7 @@ EXPORT_SYMBOL_GPL(fwnode_device_is_available);
* *
* Return: the number of child nodes for a given device. * Return: the number of child nodes for a given device.
*/ */
unsigned int device_get_child_node_count(struct device *dev) unsigned int device_get_child_node_count(const struct device *dev)
{ {
struct fwnode_handle *child; struct fwnode_handle *child;
unsigned int count = 0; unsigned int count = 0;

12
include/linux/property.h
View File

@ -114,16 +114,16 @@ struct fwnode_handle *fwnode_get_next_available_child_node(
for (child = fwnode_get_next_available_child_node(fwnode, NULL); child;\ for (child = fwnode_get_next_available_child_node(fwnode, NULL); child;\
child = fwnode_get_next_available_child_node(fwnode, child)) child = fwnode_get_next_available_child_node(fwnode, child))
struct fwnode_handle *device_get_next_child_node( struct fwnode_handle *device_get_next_child_node(const struct device *dev,
struct device *dev, struct fwnode_handle *child); struct fwnode_handle *child);
#define device_for_each_child_node(dev, child) \ #define device_for_each_child_node(dev, child) \
for (child = device_get_next_child_node(dev, NULL); child; \ for (child = device_get_next_child_node(dev, NULL); child; \
child = device_get_next_child_node(dev, child)) child = device_get_next_child_node(dev, child))
struct fwnode_handle *fwnode_get_named_child_node( struct fwnode_handle *fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
const struct fwnode_handle *fwnode, const char *childname); const char *childname);
struct fwnode_handle *device_get_named_child_node(struct device *dev, struct fwnode_handle *device_get_named_child_node(const struct device *dev,
const char *childname); const char *childname);
struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode); struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode);
@ -132,7 +132,7 @@ void fwnode_handle_put(struct fwnode_handle *fwnode);
int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index); int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index);
int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name); int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name);
unsigned int device_get_child_node_count(struct device *dev); unsigned int device_get_child_node_count(const struct device *dev);
static inline bool device_property_read_bool(struct device *dev, static inline bool device_property_read_bool(struct device *dev,
const char *propname) const char *propname)