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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 05:25:40 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 05:25:40 +0300
commit37cb8e1f8e10c6e9bd2a1b95cdda0620a21b0551 (patch)
treea1302a6cd2978d7a089534b8232ef3bfa921610e /include/linux/of.h
parent6a77d86655a1f22f099e5c73eef61dea9c56d633 (diff)
parentaa25e446ce76c37bfd75ac06598c316af94e9a26 (diff)
downloadlinux-37cb8e1f8e10c6e9bd2a1b95cdda0620a21b0551.tar.xz
Merge tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring: "A bigger diffstat than usual with the kbuild changes and a tree wide fix in the binding documentation. Summary: - kbuild cleanups and improvements for dtbs - Code clean-up of overlay code and fixing for some long standing memory leak and race condition in applying overlays - Improvements to DT memory usage making sysfs/kobjects optional and skipping unflattening of disabled nodes. This is part of kernel tinification efforts. - Final piece of removing storing the full path for every DT node. The prerequisite conversion of printk's to use device_node format specifier happened in 4.14. - Sync with current upstream dtc. This brings additional checks to dtb compiling. - Binding doc tree wide removal of leading 0s from examples - RTC binding documentation adding missing devices and some consolidation of duplicated bindings - Vendor prefix documentation for nutsboard, Silicon Storage Technology, shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH, Opal Kelly, and Next Thing" * tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits) dt-bindings: usb: add #phy-cells to usb-nop-xceiv dt-bindings: Remove leading zeros from bindings notation kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore .gitignore: sort normal pattern rules alphabetically dt-bindings: add vendor prefix for Next Thing Co. scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9 of: dynamic: fix memory leak related to properties of __of_node_dup of: overlay: make pr_err() string unique of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove of: overlay: remove unneeded check for NULL kbasename() of: overlay: remove a dependency on device node full_name of: overlay: simplify applying symbols from an overlay of: overlay: avoid race condition between applying multiple overlays of: overlay: loosen overly strict phandle clash check of: overlay: expand check of whether overlay changeset can be removed of: overlay: detect cases where device tree may become corrupt of: overlay: minor restructuring ...
Diffstat (limited to 'include/linux/of.h')
-rw-r--r--include/linux/of.h45
1 files changed, 24 insertions, 21 deletions
diff --git a/include/linux/of.h b/include/linux/of.h
index b240ed69dc96..43b5034c6a1e 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -37,9 +37,15 @@ struct property {
int length;
void *value;
struct property *next;
+#if defined(CONFIG_OF_DYNAMIC) || defined(CONFIG_SPARC)
unsigned long _flags;
+#endif
+#if defined(CONFIG_OF_PROMTREE)
unsigned int unique_id;
+#endif
+#if defined(CONFIG_OF_KOBJ)
struct bin_attribute attr;
+#endif
};
#if defined(CONFIG_SPARC)
@@ -58,7 +64,9 @@ struct device_node {
struct device_node *parent;
struct device_node *child;
struct device_node *sibling;
+#if defined(CONFIG_OF_KOBJ)
struct kobject kobj;
+#endif
unsigned long _flags;
void *data;
#if defined(CONFIG_SPARC)
@@ -103,21 +111,17 @@ extern struct kobj_type of_node_ktype;
extern const struct fwnode_operations of_fwnode_ops;
static inline void of_node_init(struct device_node *node)
{
+#if defined(CONFIG_OF_KOBJ)
kobject_init(&node->kobj, &of_node_ktype);
+#endif
node->fwnode.ops = &of_fwnode_ops;
}
-/* true when node is initialized */
-static inline int of_node_is_initialized(struct device_node *node)
-{
- return node && node->kobj.state_initialized;
-}
-
-/* true when node is attached (i.e. present on sysfs) */
-static inline int of_node_is_attached(struct device_node *node)
-{
- return node && node->kobj.state_in_sysfs;
-}
+#if defined(CONFIG_OF_KOBJ)
+#define of_node_kobj(n) (&(n)->kobj)
+#else
+#define of_node_kobj(n) NULL
+#endif
#ifdef CONFIG_OF_DYNAMIC
extern struct device_node *of_node_get(struct device_node *node);
@@ -203,6 +207,7 @@ static inline void of_node_clear_flag(struct device_node *n, unsigned long flag)
clear_bit(flag, &n->_flags);
}
+#if defined(CONFIG_OF_DYNAMIC) || defined(CONFIG_SPARC)
static inline int of_property_check_flag(struct property *p, unsigned long flag)
{
return test_bit(flag, &p->_flags);
@@ -217,6 +222,7 @@ static inline void of_property_clear_flag(struct property *p, unsigned long flag
{
clear_bit(flag, &p->_flags);
}
+#endif
extern struct device_node *__of_find_all_nodes(struct device_node *prev);
extern struct device_node *of_find_all_nodes(struct device_node *prev);
@@ -1283,9 +1289,6 @@ static inline int of_reconfig_get_state_change(unsigned long action,
}
#endif /* CONFIG_OF_DYNAMIC */
-/* CONFIG_OF_RESOLVE api */
-extern int of_resolve_phandles(struct device_node *tree);
-
/**
* of_device_is_system_power_controller - Tells if system-power-controller is found for device_node
* @np: Pointer to the given device_node
@@ -1302,7 +1305,7 @@ static inline bool of_device_is_system_power_controller(const struct device_node
*/
enum of_overlay_notify_action {
- OF_OVERLAY_PRE_APPLY,
+ OF_OVERLAY_PRE_APPLY = 0,
OF_OVERLAY_POST_APPLY,
OF_OVERLAY_PRE_REMOVE,
OF_OVERLAY_POST_REMOVE,
@@ -1316,26 +1319,26 @@ struct of_overlay_notify_data {
#ifdef CONFIG_OF_OVERLAY
/* ID based overlays; the API for external users */
-int of_overlay_create(struct device_node *tree);
-int of_overlay_destroy(int id);
-int of_overlay_destroy_all(void);
+int of_overlay_apply(struct device_node *tree, int *ovcs_id);
+int of_overlay_remove(int *ovcs_id);
+int of_overlay_remove_all(void);
int of_overlay_notifier_register(struct notifier_block *nb);
int of_overlay_notifier_unregister(struct notifier_block *nb);
#else
-static inline int of_overlay_create(struct device_node *tree)
+static inline int of_overlay_apply(struct device_node *tree, int *ovcs_id)
{
return -ENOTSUPP;
}
-static inline int of_overlay_destroy(int id)
+static inline int of_overlay_remove(int *ovcs_id)
{
return -ENOTSUPP;
}
-static inline int of_overlay_destroy_all(void)
+static inline int of_overlay_remove_all(void)
{
return -ENOTSUPP;
}