#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>
#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 &= 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);
-}
-
-
-static ssize_t of_device_get_modalias(struct of_device *ofdev,
- char *str, ssize_t len)
+ssize_t of_device_get_modalias(struct of_device *ofdev,
+ char *str, ssize_t len)
{
const char *compat;
int cplen, i;
return tsize;
}
-int of_device_uevent(struct device *dev,
- char **envp, int num_envp, char *buffer, int buffer_size)
+int of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct of_device *ofdev;
const char *compat;
- int i = 0, length = 0, seen = 0, cplen, sl;
+ int seen = 0, cplen, sl;
if (!dev)
return -ENODEV;
ofdev = to_of_device(dev);
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "OF_NAME=%s", ofdev->node->name))
+ if (add_uevent_var(env, "OF_NAME=%s", ofdev->node->name))
return -ENOMEM;
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "OF_TYPE=%s", ofdev->node->type))
+ if (add_uevent_var(env, "OF_TYPE=%s", ofdev->node->type))
return -ENOMEM;
/* Since the compatible field can contain pretty much anything
compat = of_get_property(ofdev->node, "compatible", &cplen);
while (compat && *compat && cplen > 0) {
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "OF_COMPATIBLE_%d=%s", seen, compat))
+ if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat))
return -ENOMEM;
sl = strlen (compat) + 1;
seen++;
}
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "OF_COMPATIBLE_N=%d", seen))
+ if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen))
return -ENOMEM;
/* modalias is trickier, we add it in 2 steps */
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MODALIAS="))
+ if (add_uevent_var(env, "MODALIAS="))
return -ENOMEM;
-
- sl = of_device_get_modalias(ofdev, &buffer[length-1],
- buffer_size-length);
- if (sl >= (buffer_size-length))
+ sl = of_device_get_modalias(ofdev, &env->buf[env->buflen-1],
+ sizeof(env->buf) - env->buflen);
+ if (sl >= (sizeof(env->buf) - env->buflen))
return -ENOMEM;
-
- length += sl;
-
- envp[i] = NULL;
+ env->buflen += sl;
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);
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff