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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-20 09:18:08 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-20 09:18:08 -0700
commit2cb7e714229681408e323852bed939989faf6991 (patch)
tree552b78fa5830a0337594f9fbab5f1dc0306e93cd /arch/powerpc
parentd638d4990bfb99998420e78e8fd4607bca5cf8d0 (diff)
parent3f23de10f283819bcdc0d2282e8b5b14c2e96d3b (diff)
downloadblackbird-op-linux-2cb7e714229681408e323852bed939989faf6991.tar.gz
blackbird-op-linux-2cb7e714229681408e323852bed939989faf6991.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofcons
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofcons: Create drivers/of/platform.c Create linux/of_platorm.h [SPARC/64] Rename some functions like PowerPC Begin consolidation of of_device.h Begin to consolidate of_device.c Consolidate of_find_node_by routines Consolidate of_get_next_child Consolidate of_get_parent Consolidate of_find_property Consolidate of_device_is_compatible Start split out of common open firmware code Split out common parts of prom.h
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/Kconfig3
-rw-r--r--arch/powerpc/kernel/of_device.c122
-rw-r--r--arch/powerpc/kernel/of_platform.c82
-rw-r--r--arch/powerpc/kernel/prom.c250
4 files changed, 7 insertions, 450 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d860b640a140..853c282da22e 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -92,6 +92,9 @@ config ARCH_MAY_HAVE_PC_FDC
config PPC_OF
def_bool y
+config OF
+ def_bool y
+
config PPC_UDBG_16550
bool
default n
diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index a464d67248df..89b911e83c04 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -1,5 +1,6 @@
#include <linux/string.h>
#include <linux/kernel.h>
+#include <linux/of.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
@@ -8,118 +9,6 @@
#include <asm/errno.h>
#include <asm/of_device.h>
-/**
- * of_match_node - Tell if an device_node has a matching of_match structure
- * @ids: array of of device match structures to search in
- * @node: the of device structure to match against
- *
- * Low level utility function used by device matching.
- */
-const struct of_device_id *of_match_node(const struct of_device_id *matches,
- const struct device_node *node)
-{
- while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
- int match = 1;
- if (matches->name[0])
- match &= node->name
- && !strcmp(matches->name, node->name);
- if (matches->type[0])
- match &= node->type
- && !strcmp(matches->type, node->type);
- if (matches->compatible[0])
- match &= of_device_is_compatible(node,
- matches->compatible);
- if (match)
- return matches;
- matches++;
- }
- return NULL;
-}
-
-/**
- * of_match_device - Tell if an of_device structure has a matching
- * of_match structure
- * @ids: array of of device match structures to search in
- * @dev: the of device structure to match against
- *
- * Used by a driver to check whether an of_device present in the
- * system is in its list of supported devices.
- */
-const struct of_device_id *of_match_device(const struct of_device_id *matches,
- const struct of_device *dev)
-{
- if (!dev->node)
- return NULL;
- return of_match_node(matches, dev->node);
-}
-
-struct of_device *of_dev_get(struct of_device *dev)
-{
- struct device *tmp;
-
- if (!dev)
- return NULL;
- tmp = get_device(&dev->dev);
- if (tmp)
- return to_of_device(tmp);
- else
- return NULL;
-}
-
-void of_dev_put(struct of_device *dev)
-{
- if (dev)
- put_device(&dev->dev);
-}
-
-static ssize_t dev_show_devspec(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct of_device *ofdev;
-
- ofdev = to_of_device(dev);
- return sprintf(buf, "%s", ofdev->node->full_name);
-}
-
-static DEVICE_ATTR(devspec, S_IRUGO, dev_show_devspec, NULL);
-
-/**
- * of_release_dev - free an of device structure when all users of it are finished.
- * @dev: device that's been disconnected
- *
- * Will be called only by the device core when all users of this of device are
- * done.
- */
-void of_release_dev(struct device *dev)
-{
- struct of_device *ofdev;
-
- ofdev = to_of_device(dev);
- of_node_put(ofdev->node);
- kfree(ofdev);
-}
-
-int of_device_register(struct of_device *ofdev)
-{
- int rc;
-
- BUG_ON(ofdev->node == NULL);
-
- rc = device_register(&ofdev->dev);
- if (rc)
- return rc;
-
- return device_create_file(&ofdev->dev, &dev_attr_devspec);
-}
-
-void of_device_unregister(struct of_device *ofdev)
-{
- device_remove_file(&ofdev->dev, &dev_attr_devspec);
-
- device_unregister(&ofdev->dev);
-}
-
-
ssize_t of_device_get_modalias(struct of_device *ofdev,
char *str, ssize_t len)
{
@@ -229,14 +118,5 @@ int of_device_uevent(struct device *dev,
return 0;
}
-
-
-EXPORT_SYMBOL(of_match_node);
-EXPORT_SYMBOL(of_match_device);
-EXPORT_SYMBOL(of_device_register);
-EXPORT_SYMBOL(of_device_unregister);
-EXPORT_SYMBOL(of_dev_get);
-EXPORT_SYMBOL(of_dev_put);
-EXPORT_SYMBOL(of_release_dev);
EXPORT_SYMBOL(of_device_uevent);
EXPORT_SYMBOL(of_device_get_modalias);
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index 8ded4e7dc87e..f70e787d556f 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -55,94 +55,14 @@ static struct of_device_id of_default_bus_ids[] = {
static atomic_t bus_no_reg_magic;
-/*
- *
- * OF platform device type definition & base infrastructure
- *
- */
-
-static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
-{
- struct of_device * of_dev = to_of_device(dev);
- struct of_platform_driver * of_drv = to_of_platform_driver(drv);
- const struct of_device_id * matches = of_drv->match_table;
-
- if (!matches)
- return 0;
-
- return of_match_device(matches, of_dev) != NULL;
-}
-
-static int of_platform_device_probe(struct device *dev)
-{
- int error = -ENODEV;
- struct of_platform_driver *drv;
- struct of_device *of_dev;
- const struct of_device_id *match;
-
- drv = to_of_platform_driver(dev->driver);
- of_dev = to_of_device(dev);
-
- if (!drv->probe)
- return error;
-
- of_dev_get(of_dev);
-
- match = of_match_device(drv->match_table, of_dev);
- if (match)
- error = drv->probe(of_dev, match);
- if (error)
- of_dev_put(of_dev);
-
- return error;
-}
-
-static int of_platform_device_remove(struct device *dev)
-{
- struct of_device * of_dev = to_of_device(dev);
- struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
-
- if (dev->driver && drv->remove)
- drv->remove(of_dev);
- return 0;
-}
-
-static int of_platform_device_suspend(struct device *dev, pm_message_t state)
-{
- struct of_device * of_dev = to_of_device(dev);
- struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
- int error = 0;
-
- if (dev->driver && drv->suspend)
- error = drv->suspend(of_dev, state);
- return error;
-}
-
-static int of_platform_device_resume(struct device * dev)
-{
- struct of_device * of_dev = to_of_device(dev);
- struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
- int error = 0;
-
- if (dev->driver && drv->resume)
- error = drv->resume(of_dev);
- return error;
-}
-
struct bus_type of_platform_bus_type = {
- .name = "of_platform",
- .match = of_platform_bus_match,
.uevent = of_device_uevent,
- .probe = of_platform_device_probe,
- .remove = of_platform_device_remove,
- .suspend = of_platform_device_suspend,
- .resume = of_platform_device_resume,
};
EXPORT_SYMBOL(of_platform_bus_type);
static int __init of_bus_driver_init(void)
{
- return bus_register(&of_platform_bus_type);
+ return of_bus_type_init(&of_platform_bus_type, "of_platform");
}
postcore_initcall(of_bus_driver_init);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 37ff99bd98b4..bdcd23d8d8b9 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -78,12 +78,9 @@ static struct boot_param_header *initial_boot_params __initdata;
struct boot_param_header *initial_boot_params;
#endif
-static struct device_node *allnodes = NULL;
+extern struct device_node *allnodes; /* temporary while merging */
-/* use when traversing tree through the allnext, child, sibling,
- * or parent members of struct device_node.
- */
-static DEFINE_RWLOCK(devtree_lock);
+extern rwlock_t devtree_lock; /* temporary while merging */
/* export that to outside world */
struct device_node *of_chosen;
@@ -1056,60 +1053,6 @@ void __init early_init_devtree(void *params)
DBG(" <- early_init_devtree()\n");
}
-int of_n_addr_cells(struct device_node* np)
-{
- const int *ip;
- do {
- if (np->parent)
- np = np->parent;
- ip = of_get_property(np, "#address-cells", NULL);
- if (ip != NULL)
- return *ip;
- } while (np->parent);
- /* No #address-cells property for the root node, default to 1 */
- return 1;
-}
-EXPORT_SYMBOL(of_n_addr_cells);
-
-int of_n_size_cells(struct device_node* np)
-{
- const int* ip;
- do {
- if (np->parent)
- np = np->parent;
- ip = of_get_property(np, "#size-cells", NULL);
- if (ip != NULL)
- return *ip;
- } while (np->parent);
- /* No #size-cells property for the root node, default to 1 */
- return 1;
-}
-EXPORT_SYMBOL(of_n_size_cells);
-
-/** Checks if the given "compat" string matches one of the strings in
- * the device's "compatible" property
- */
-int of_device_is_compatible(const struct device_node *device,
- const char *compat)
-{
- const char* cp;
- int cplen, l;
-
- cp = of_get_property(device, "compatible", &cplen);
- if (cp == NULL)
- return 0;
- while (cplen > 0) {
- if (strncasecmp(cp, compat, strlen(compat)) == 0)
- return 1;
- l = strlen(cp) + 1;
- cp += l;
- cplen -= l;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(of_device_is_compatible);
-
/**
* Indicates whether the root node has a given value in its
@@ -1141,119 +1084,6 @@ EXPORT_SYMBOL(machine_is_compatible);
*******/
/**
- * of_find_node_by_name - Find a node by its "name" property
- * @from: The node to start searching from or NULL, the node
- * you pass will not be searched, only the next one
- * will; typically, you pass what the previous call
- * returned. of_node_put() will be called on it
- * @name: The name string to match against
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_name(struct device_node *from,
- const char *name)
-{
- struct device_node *np;
-
- read_lock(&devtree_lock);
- np = from ? from->allnext : allnodes;
- for (; np != NULL; np = np->allnext)
- if (np->name != NULL && strcasecmp(np->name, name) == 0
- && of_node_get(np))
- break;
- of_node_put(from);
- read_unlock(&devtree_lock);
- return np;
-}
-EXPORT_SYMBOL(of_find_node_by_name);
-
-/**
- * of_find_node_by_type - Find a node by its "device_type" property
- * @from: The node to start searching from, or NULL to start searching
- * the entire device tree. The node you pass will not be
- * searched, only the next one will; typically, you pass
- * what the previous call returned. of_node_put() will be
- * called on from for you.
- * @type: The type string to match against
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_type(struct device_node *from,
- const char *type)
-{
- struct device_node *np;
-
- read_lock(&devtree_lock);
- np = from ? from->allnext : allnodes;
- for (; np != 0; np = np->allnext)
- if (np->type != 0 && strcasecmp(np->type, type) == 0
- && of_node_get(np))
- break;
- of_node_put(from);
- read_unlock(&devtree_lock);
- return np;
-}
-EXPORT_SYMBOL(of_find_node_by_type);
-
-/**
- * of_find_compatible_node - Find a node based on type and one of the
- * tokens in its "compatible" property
- * @from: The node to start searching from or NULL, the node
- * you pass will not be searched, only the next one
- * will; typically, you pass what the previous call
- * returned. of_node_put() will be called on it
- * @type: The type string to match "device_type" or NULL to ignore
- * @compatible: The string to match to one of the tokens in the device
- * "compatible" list.
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_compatible_node(struct device_node *from,
- const char *type, const char *compatible)
-{
- struct device_node *np;
-
- read_lock(&devtree_lock);
- np = from ? from->allnext : allnodes;
- for (; np != 0; np = np->allnext) {
- if (type != NULL
- && !(np->type != 0 && strcasecmp(np->type, type) == 0))
- continue;
- if (of_device_is_compatible(np, compatible) && of_node_get(np))
- break;
- }
- of_node_put(from);
- read_unlock(&devtree_lock);
- return np;
-}
-EXPORT_SYMBOL(of_find_compatible_node);
-
-/**
- * of_find_node_by_path - Find a node matching a full OF path
- * @path: The full path to match
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_path(const char *path)
-{
- struct device_node *np = allnodes;
-
- read_lock(&devtree_lock);
- for (; np != 0; np = np->allnext) {
- if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0
- && of_node_get(np))
- break;
- }
- read_unlock(&devtree_lock);
- return np;
-}
-EXPORT_SYMBOL(of_find_node_by_path);
-
-/**
* of_find_node_by_phandle - Find a node given a phandle
* @handle: phandle of the node to find
*
@@ -1298,51 +1128,6 @@ struct device_node *of_find_all_nodes(struct device_node *prev)
EXPORT_SYMBOL(of_find_all_nodes);
/**
- * of_get_parent - Get a node's parent if any
- * @node: Node to get parent
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_get_parent(const struct device_node *node)
-{
- struct device_node *np;
-
- if (!node)
- return NULL;
-
- read_lock(&devtree_lock);
- np = of_node_get(node->parent);
- read_unlock(&devtree_lock);
- return np;
-}
-EXPORT_SYMBOL(of_get_parent);
-
-/**
- * of_get_next_child - Iterate a node childs
- * @node: parent node
- * @prev: previous child of the parent node, or NULL to get first
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_get_next_child(const struct device_node *node,
- struct device_node *prev)
-{
- struct device_node *next;
-
- read_lock(&devtree_lock);
- next = prev ? prev->sibling : node->child;
- for (; next != 0; next = next->sibling)
- if (of_node_get(next))
- break;
- of_node_put(prev);
- read_unlock(&devtree_lock);
- return next;
-}
-EXPORT_SYMBOL(of_get_next_child);
-
-/**
* of_node_get - Increment refcount of a node
* @node: Node to inc refcount, NULL is supported to
* simplify writing of callers
@@ -1543,37 +1328,6 @@ static int __init prom_reconfig_setup(void)
__initcall(prom_reconfig_setup);
#endif
-struct property *of_find_property(const struct device_node *np,
- const char *name,
- int *lenp)
-{
- struct property *pp;
-
- read_lock(&devtree_lock);
- for (pp = np->properties; pp != 0; pp = pp->next)
- if (strcmp(pp->name, name) == 0) {
- if (lenp != 0)
- *lenp = pp->length;
- break;
- }
- read_unlock(&devtree_lock);
-
- return pp;
-}
-EXPORT_SYMBOL(of_find_property);
-
-/*
- * Find a property with a given name for a given node
- * and return the value.
- */
-const void *of_get_property(const struct device_node *np, const char *name,
- int *lenp)
-{
- struct property *pp = of_find_property(np,name,lenp);
- return pp ? pp->value : NULL;
-}
-EXPORT_SYMBOL(of_get_property);
-
/*
* Add a property to a node
*/
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