* @elem_size: size of the individual element
*
* Search for a property in a device node and count the number of elements of
- * size elem_size in it. Returns number of elements on sucess, -EINVAL if the
- * property does not exist or its length does not match a multiple of elem_size
- * and -ENODATA if the property does not have a value.
+ * size elem_size in it.
+ *
+ * Return: The number of elements on sucess, -EINVAL if the property does not
+ * exist or its length does not match a multiple of elem_size and -ENODATA if
+ * the property does not have a value.
*/
int of_property_count_elems_of_size(const struct device_node *np,
const char *propname, int elem_size)
* @len: if !=NULL, actual length is written to here
*
* Search for a property in a device node and valid the requested size.
- * Returns the property value on success, -EINVAL if the property does not
- * exist, -ENODATA if property does not have a value, and -EOVERFLOW if the
+ *
+ * Return: The property value on success, -EINVAL if the property does not
+ * exist, -ENODATA if property does not have a value, and -EOVERFLOW if the
* property data is too small or too large.
*
*/
* @out_value: pointer to return value, modified only if no error.
*
* Search for a property in a device node and read nth 32-bit value from
- * it. Returns 0 on success, -EINVAL if the property does not exist,
+ * it.
+ *
+ * Return: 0 on success, -EINVAL if the property does not exist,
* -ENODATA if property does not have a value, and -EOVERFLOW if the
* property data isn't large enough.
*
* @out_value: pointer to return value, modified only if no error.
*
* Search for a property in a device node and read nth 64-bit value from
- * it. Returns 0 on success, -EINVAL if the property does not exist,
+ * it.
+ *
+ * Return: 0 on success, -EINVAL if the property does not exist,
* -ENODATA if property does not have a value, and -EOVERFLOW if the
* property data isn't large enough.
*
* sz_min will be read.
*
* Search for a property in a device node and read 8-bit value(s) from
- * it. Returns number of elements read on success, -EINVAL if the property
- * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
- * if the property data is smaller than sz_min or longer than sz_max.
+ * it.
*
* dts entry of array should be like:
- * property = /bits/ 8 <0x50 0x60 0x70>;
+ * ``property = /bits/ 8 <0x50 0x60 0x70>;``
+ *
+ * Return: The number of elements read on success, -EINVAL if the property
+ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
+ * if the property data is smaller than sz_min or longer than sz_max.
*
* The out_values is modified only if a valid u8 value can be decoded.
*/
* sz_min will be read.
*
* Search for a property in a device node and read 16-bit value(s) from
- * it. Returns number of elements read on success, -EINVAL if the property
- * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
- * if the property data is smaller than sz_min or longer than sz_max.
+ * it.
*
* dts entry of array should be like:
- * property = /bits/ 16 <0x5000 0x6000 0x7000>;
+ * ``property = /bits/ 16 <0x5000 0x6000 0x7000>;``
+ *
+ * Return: The number of elements read on success, -EINVAL if the property
+ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
+ * if the property data is smaller than sz_min or longer than sz_max.
*
* The out_values is modified only if a valid u16 value can be decoded.
*/
* sz_min will be read.
*
* Search for a property in a device node and read 32-bit value(s) from
- * it. Returns number of elements read on success, -EINVAL if the property
+ * it.
+ *
+ * Return: The number of elements read on success, -EINVAL if the property
* does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
* if the property data is smaller than sz_min or longer than sz_max.
*
* @out_value: pointer to return value, modified only if return value is 0.
*
* Search for a property in a device node and read a 64-bit value from
- * it. Returns 0 on success, -EINVAL if the property does not exist,
+ * it.
+ *
+ * Return: 0 on success, -EINVAL if the property does not exist,
* -ENODATA if property does not have a value, and -EOVERFLOW if the
* property data isn't large enough.
*
* sz_min will be read.
*
* Search for a property in a device node and read 64-bit value(s) from
- * it. Returns number of elements read on success, -EINVAL if the property
+ * it.
+ *
+ * Return: The number of elements read on success, -EINVAL if the property
* does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
* if the property data is smaller than sz_min or longer than sz_max.
*
* return value is 0.
*
* Search for a property in a device tree node and retrieve a null
- * terminated string value (pointer to data, not a copy). Returns 0 on
- * success, -EINVAL if the property does not exist, -ENODATA if property
- * does not have a value, and -EILSEQ if the string is not null-terminated
- * within the length of the property data.
+ * terminated string value (pointer to data, not a copy).
+ *
+ * Return: 0 on success, -EINVAL if the property does not exist, -ENODATA if
+ * property does not have a value, and -EILSEQ if the string is not
+ * null-terminated within the length of the property data.
*
* The out_string pointer is modified only if a valid string can be decoded.
*/
* @node: pointer to a local endpoint device_node
*
* Return: Remote port node associated with remote endpoint node linked
- * to @node. Use of_node_put() on it when done.
+ * to @node. Use of_node_put() on it when done.
*/
struct device_node *of_graph_get_remote_port(const struct device_node *node)
{
* @endpoint: identifier (value of reg property) of the endpoint node
*
* Return: Remote device node associated with remote endpoint node linked
- * to @node. Use of_node_put() on it when done.
+ * to @node. Use of_node_put() on it when done.
*/
struct device_node *of_graph_get_remote_node(const struct device_node *node,
u32 port, u32 endpoint)
return false;
}
+static struct device_node *of_get_compat_node(struct device_node *np)
+{
+ of_node_get(np);
+
+ while (np) {
+ if (!of_device_is_available(np)) {
+ of_node_put(np);
+ np = NULL;
+ }
+
+ if (of_find_property(np, "compatible", NULL))
+ break;
+
+ np = of_get_next_parent(np);
+ }
+
+ return np;
+}
+
/**
* of_link_to_phandle - Add fwnode link to supplier from supplier phandle
* @con_np: consumer device tree node
struct device *sup_dev;
struct device_node *tmp_np = sup_np;
- of_node_get(sup_np);
/*
* Find the device node that contains the supplier phandle. It may be
* @sup_np or it may be an ancestor of @sup_np.
*/
- while (sup_np) {
-
- /* Don't allow linking to a disabled supplier */
- if (!of_device_is_available(sup_np)) {
- of_node_put(sup_np);
- sup_np = NULL;
- }
-
- if (of_find_property(sup_np, "compatible", NULL))
- break;
-
- sup_np = of_get_next_parent(sup_np);
- }
-
+ sup_np = of_get_compat_node(sup_np);
if (!sup_np) {
pr_debug("Not linking %pOFP to %pOFP - No device\n",
con_np, tmp_np);
* @parse_prop.prop_name: Name of property holding a phandle value
* @parse_prop.index: For properties holding a list of phandles, this is the
* index into the list
+ * @optional: Describes whether a supplier is mandatory or not
+ * @node_not_dev: The consumer node containing the property is never a device.
*
* Returns:
* parse_prop() return values are
struct device_node *(*parse_prop)(struct device_node *np,
const char *prop_name, int index);
bool optional;
+ bool node_not_dev;
};
DEFINE_SIMPLE_PROP(clocks, "clocks", "#clock-cells")
DEFINE_SIMPLE_PROP(pinctrl6, "pinctrl-6", NULL)
DEFINE_SIMPLE_PROP(pinctrl7, "pinctrl-7", NULL)
DEFINE_SIMPLE_PROP(pinctrl8, "pinctrl-8", NULL)
+DEFINE_SIMPLE_PROP(remote_endpoint, "remote-endpoint", NULL)
+DEFINE_SIMPLE_PROP(pwms, "pwms", "#pwm-cells")
+DEFINE_SIMPLE_PROP(resets, "resets", "#reset-cells")
+DEFINE_SIMPLE_PROP(leds, "leds", NULL)
+DEFINE_SIMPLE_PROP(backlight, "backlight", NULL)
+DEFINE_SIMPLE_PROP(phy_handle, "phy-handle", NULL)
DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
{ .parse_prop = parse_pinctrl6, },
{ .parse_prop = parse_pinctrl7, },
{ .parse_prop = parse_pinctrl8, },
+ { .parse_prop = parse_remote_endpoint, .node_not_dev = true, },
+ { .parse_prop = parse_pwms, },
+ { .parse_prop = parse_resets, },
+ { .parse_prop = parse_leds, },
+ { .parse_prop = parse_backlight, },
+ { .parse_prop = parse_phy_handle, },
{ .parse_prop = parse_gpio_compat, },
{ .parse_prop = parse_interrupts, },
{ .parse_prop = parse_regulators, },
/**
* of_link_property - Create device links to suppliers listed in a property
- * @dev: Consumer device
* @con_np: The consumer device tree node which contains the property
* @prop_name: Name of property to be parsed
*
const struct supplier_bindings *s = of_supplier_bindings;
unsigned int i = 0;
bool matched = false;
- int ret = 0;
/* Do not stop at first failed link, link all available suppliers. */
while (!matched && s->parse_prop) {
}
while ((phandle = s->parse_prop(con_np, prop_name, i))) {
+ struct device_node *con_dev_np;
+
+ con_dev_np = s->node_not_dev
+ ? of_get_compat_node(con_np)
+ : of_node_get(con_np);
matched = true;
i++;
- of_link_to_phandle(con_np, phandle);
+ of_link_to_phandle(con_dev_np, phandle);
of_node_put(phandle);
+ of_node_put(con_dev_np);
}
s++;
}
- return ret;
+ return 0;
}
static int of_fwnode_add_links(struct fwnode_handle *fwnode)
struct property *p;
struct device_node *con_np = to_of_node(fwnode);
+ if (IS_ENABLED(CONFIG_X86))
+ return 0;
+
if (!con_np)
return -EINVAL;
projects / linux-2.6-microblaze.git / blobdiff