acpi_extract_apple_properties(adev);
}
+static void acpi_free_device_properties(struct list_head *list)
+{
+ struct acpi_device_properties *props, *tmp;
+
+ list_for_each_entry_safe(props, tmp, list, list) {
+ list_del(&props->list);
+ kfree(props);
+ }
+}
+
static void acpi_destroy_nondev_subnodes(struct list_head *list)
{
struct acpi_data_node *dn, *next;
wait_for_completion(&dn->kobj_done);
list_del(&dn->sibling);
ACPI_FREE((void *)dn->data.pointer);
+ acpi_free_device_properties(&dn->data.properties);
kfree(dn);
}
}
void acpi_free_properties(struct acpi_device *adev)
{
- struct acpi_device_properties *props, *tmp;
-
acpi_destroy_nondev_subnodes(&adev->data.subnodes);
ACPI_FREE((void *)adev->data.pointer);
adev->data.of_compatible = NULL;
adev->data.pointer = NULL;
- list_for_each_entry_safe(props, tmp, &adev->data.properties, list) {
- list_del(&props->list);
- kfree(props);
- }
+ acpi_free_device_properties(&adev->data.properties);
}
/**
return acpi_device_is_present(to_acpi_device_node(fwnode));
}
+static const void *
+acpi_fwnode_device_get_match_data(const struct fwnode_handle *fwnode,
+ const struct device *dev)
+{
+ return acpi_device_get_match_data(dev);
+}
+
+static bool acpi_fwnode_device_dma_supported(const struct fwnode_handle *fwnode)
+{
+ return acpi_dma_supported(to_acpi_device_node(fwnode));
+}
+
+static enum dev_dma_attr
+acpi_fwnode_device_get_dma_attr(const struct fwnode_handle *fwnode)
+{
+ return acpi_get_dma_attr(to_acpi_device_node(fwnode));
+}
+
static bool acpi_fwnode_property_present(const struct fwnode_handle *fwnode,
const char *propname)
{
return 0;
}
-static const void *
-acpi_fwnode_device_get_match_data(const struct fwnode_handle *fwnode,
- const struct device *dev)
+static int acpi_fwnode_irq_get(const struct fwnode_handle *fwnode,
+ unsigned int index)
{
- return acpi_device_get_match_data(dev);
+ struct resource res;
+ int ret;
+
+ ret = acpi_irq_get(ACPI_HANDLE_FWNODE(fwnode), index, &res);
+ if (ret)
+ return ret;
+
+ return res.start;
}
#define DECLARE_ACPI_FWNODE_OPS(ops) \
const struct fwnode_operations ops = { \
.device_is_available = acpi_fwnode_device_is_available, \
.device_get_match_data = acpi_fwnode_device_get_match_data, \
+ .device_dma_supported = \
+ acpi_fwnode_device_dma_supported, \
+ .device_get_dma_attr = acpi_fwnode_device_get_dma_attr, \
.property_present = acpi_fwnode_property_present, \
.property_read_int_array = \
acpi_fwnode_property_read_int_array, \
acpi_graph_get_remote_endpoint, \
.graph_get_port_parent = acpi_fwnode_get_parent, \
.graph_parse_endpoint = acpi_fwnode_graph_parse_endpoint, \
+ .irq_get = acpi_fwnode_irq_get, \
}; \
EXPORT_SYMBOL_GPL(ops)
{
bool ret;
+ if (IS_ERR_OR_NULL(fwnode))
+ return false;
+
ret = fwnode_call_bool_op(fwnode, property_present, propname);
- if (ret == false && !IS_ERR_OR_NULL(fwnode) &&
- !IS_ERR_OR_NULL(fwnode->secondary))
- ret = fwnode_call_bool_op(fwnode->secondary, property_present,
- propname);
- return ret;
+ if (ret)
+ return ret;
+
+ return fwnode_call_bool_op(fwnode->secondary, property_present, propname);
}
EXPORT_SYMBOL_GPL(fwnode_property_present);
* Function reads an array of u8 properties with @propname from the device
* firmware description and stores them to @val if found.
*
+ * It's recommended to call device_property_count_u8() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Function reads an array of u16 properties with @propname from the device
* firmware description and stores them to @val if found.
*
+ * It's recommended to call device_property_count_u16() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Function reads an array of u32 properties with @propname from the device
* firmware description and stores them to @val if found.
*
+ * It's recommended to call device_property_count_u32() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Function reads an array of u64 properties with @propname from the device
* firmware description and stores them to @val if found.
*
+ * It's recommended to call device_property_count_u64() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Function reads an array of string properties with @propname from the device
* firmware description and stores them to @val if found.
*
+ * It's recommended to call device_property_string_array_count() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values read on success if @val is non-NULL,
* number of values available on success if @val is NULL,
* %-EINVAL if given arguments are not valid,
{
int ret;
+ if (IS_ERR_OR_NULL(fwnode))
+ return -EINVAL;
+
ret = fwnode_call_int_op(fwnode, property_read_int_array, propname,
elem_size, val, nval);
- if (ret == -EINVAL && !IS_ERR_OR_NULL(fwnode) &&
- !IS_ERR_OR_NULL(fwnode->secondary))
- ret = fwnode_call_int_op(
- fwnode->secondary, property_read_int_array, propname,
- elem_size, val, nval);
+ if (ret != -EINVAL)
+ return ret;
- return ret;
+ return fwnode_call_int_op(fwnode->secondary, property_read_int_array, propname,
+ elem_size, val, nval);
}
/**
* Read an array of u8 properties with @propname from @fwnode and stores them to
* @val if found.
*
+ * It's recommended to call fwnode_property_count_u8() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Read an array of u16 properties with @propname from @fwnode and store them to
* @val if found.
*
+ * It's recommended to call fwnode_property_count_u16() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Read an array of u32 properties with @propname from @fwnode store them to
* @val if found.
*
+ * It's recommended to call fwnode_property_count_u32() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Read an array of u64 properties with @propname from @fwnode and store them to
* @val if found.
*
+ * It's recommended to call fwnode_property_count_u64() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* Read an string list property @propname from the given firmware node and store
* them to @val if found.
*
+ * It's recommended to call fwnode_property_string_array_count() instead of calling
+ * this function with @val equals %NULL and @nval equals 0.
+ *
* Return: number of values read on success if @val is non-NULL,
* number of values available on success if @val is NULL,
* %-EINVAL if given arguments are not valid,
{
int ret;
+ if (IS_ERR_OR_NULL(fwnode))
+ return -EINVAL;
+
ret = fwnode_call_int_op(fwnode, property_read_string_array, propname,
val, nval);
- if (ret == -EINVAL && !IS_ERR_OR_NULL(fwnode) &&
- !IS_ERR_OR_NULL(fwnode->secondary))
- ret = fwnode_call_int_op(fwnode->secondary,
- property_read_string_array, propname,
- val, nval);
- return ret;
+ if (ret != -EINVAL)
+ return ret;
+
+ return fwnode_call_int_op(fwnode->secondary, property_read_string_array, propname,
+ val, nval);
}
EXPORT_SYMBOL_GPL(fwnode_property_read_string_array);
{
int ret;
+ if (IS_ERR_OR_NULL(fwnode))
+ return -ENOENT;
+
ret = fwnode_call_int_op(fwnode, get_reference_args, prop, nargs_prop,
nargs, index, args);
+ if (ret == 0)
+ return ret;
- if (ret < 0 && !IS_ERR_OR_NULL(fwnode) &&
- !IS_ERR_OR_NULL(fwnode->secondary))
- ret = fwnode_call_int_op(fwnode->secondary, get_reference_args,
- prop, nargs_prop, nargs, index, args);
+ if (IS_ERR_OR_NULL(fwnode->secondary))
+ return ret;
- return ret;
+ return fwnode_call_int_op(fwnode->secondary, get_reference_args, prop, nargs_prop,
+ nargs, index, args);
}
EXPORT_SYMBOL_GPL(fwnode_property_get_reference_args);
*/
struct device *fwnode_get_next_parent_dev(struct fwnode_handle *fwnode)
{
+ struct fwnode_handle *parent;
struct device *dev;
- fwnode_handle_get(fwnode);
- do {
- fwnode = fwnode_get_next_parent(fwnode);
- if (!fwnode)
- return NULL;
- dev = get_dev_from_fwnode(fwnode);
- } while (!dev);
- fwnode_handle_put(fwnode);
- return dev;
+ fwnode_for_each_parent_node(fwnode, parent) {
+ dev = get_dev_from_fwnode(parent);
+ if (dev) {
+ fwnode_handle_put(parent);
+ return dev;
+ }
+ }
+ return NULL;
}
/**
*/
unsigned int fwnode_count_parents(const struct fwnode_handle *fwnode)
{
- struct fwnode_handle *__fwnode;
- unsigned int count;
-
- __fwnode = fwnode_get_parent(fwnode);
+ struct fwnode_handle *parent;
+ unsigned int count = 0;
- for (count = 0; __fwnode; count++)
- __fwnode = fwnode_get_next_parent(__fwnode);
+ fwnode_for_each_parent_node(fwnode, parent)
+ count++;
return count;
}
struct fwnode_handle *fwnode_get_nth_parent(struct fwnode_handle *fwnode,
unsigned int depth)
{
- unsigned int i;
+ struct fwnode_handle *parent;
- fwnode_handle_get(fwnode);
+ if (depth == 0)
+ return fwnode_handle_get(fwnode);
- for (i = 0; i < depth && fwnode; i++)
- fwnode = fwnode_get_next_parent(fwnode);
-
- return fwnode;
+ fwnode_for_each_parent_node(fwnode, parent) {
+ if (--depth == 0)
+ return parent;
+ }
+ return NULL;
}
EXPORT_SYMBOL_GPL(fwnode_get_nth_parent);
/**
- * fwnode_is_ancestor_of - Test if @test_ancestor is ancestor of @test_child
- * @test_ancestor: Firmware which is tested for being an ancestor
- * @test_child: Firmware which is tested for being the child
+ * fwnode_is_ancestor_of - Test if @ancestor is ancestor of @child
+ * @ancestor: Firmware which is tested for being an ancestor
+ * @child: Firmware which is tested for being the child
*
* A node is considered an ancestor of itself too.
*
- * Returns true if @test_ancestor is an ancestor of @test_child.
- * Otherwise, returns false.
+ * Returns true if @ancestor is an ancestor of @child. Otherwise, returns false.
*/
-bool fwnode_is_ancestor_of(struct fwnode_handle *test_ancestor,
- struct fwnode_handle *test_child)
+bool fwnode_is_ancestor_of(struct fwnode_handle *ancestor, struct fwnode_handle *child)
{
- if (!test_ancestor)
+ struct fwnode_handle *parent;
+
+ if (IS_ERR_OR_NULL(ancestor))
return false;
- fwnode_handle_get(test_child);
- while (test_child) {
- if (test_child == test_ancestor) {
- fwnode_handle_put(test_child);
+ if (child == ancestor)
+ return true;
+
+ fwnode_for_each_parent_node(child, parent) {
+ if (parent == ancestor) {
+ fwnode_handle_put(parent);
return true;
}
- test_child = fwnode_get_next_parent(test_child);
}
return false;
}
{
struct fwnode_handle *next_child = child;
- if (!fwnode)
+ if (IS_ERR_OR_NULL(fwnode))
return NULL;
do {
const struct fwnode_handle *fwnode = dev_fwnode(dev);
struct fwnode_handle *next;
+ if (IS_ERR_OR_NULL(fwnode))
+ return NULL;
+
/* Try to find a child in primary fwnode */
next = fwnode_get_next_child_node(fwnode, child);
if (next)
return next;
/* When no more children in primary, continue with secondary */
- if (fwnode && !IS_ERR_OR_NULL(fwnode->secondary))
- next = fwnode_get_next_child_node(fwnode->secondary, child);
-
- return next;
+ return fwnode_get_next_child_node(fwnode->secondary, child);
}
EXPORT_SYMBOL_GPL(device_get_next_child_node);
*/
bool fwnode_device_is_available(const struct fwnode_handle *fwnode)
{
+ if (IS_ERR_OR_NULL(fwnode))
+ return false;
+
if (!fwnode_has_op(fwnode, device_is_available))
return true;
bool device_dma_supported(struct device *dev)
{
- const struct fwnode_handle *fwnode = dev_fwnode(dev);
-
- /* For DT, this is always supported.
- * For ACPI, this depends on CCA, which
- * is determined by the acpi_dma_supported().
- */
- if (is_of_node(fwnode))
- return true;
-
- return acpi_dma_supported(to_acpi_device_node(fwnode));
+ return fwnode_call_bool_op(dev_fwnode(dev), device_dma_supported);
}
EXPORT_SYMBOL_GPL(device_dma_supported);
enum dev_dma_attr device_get_dma_attr(struct device *dev)
{
- const struct fwnode_handle *fwnode = dev_fwnode(dev);
- enum dev_dma_attr attr = DEV_DMA_NOT_SUPPORTED;
-
- if (is_of_node(fwnode)) {
- if (of_dma_is_coherent(to_of_node(fwnode)))
- attr = DEV_DMA_COHERENT;
- else
- attr = DEV_DMA_NON_COHERENT;
- } else
- attr = acpi_get_dma_attr(to_acpi_device_node(fwnode));
+ if (!fwnode_has_op(dev_fwnode(dev), device_get_dma_attr))
+ return DEV_DMA_NOT_SUPPORTED;
- return attr;
+ return fwnode_call_int_op(dev_fwnode(dev), device_get_dma_attr);
}
EXPORT_SYMBOL_GPL(device_get_dma_attr);
*/
void __iomem *fwnode_iomap(struct fwnode_handle *fwnode, int index)
{
- if (IS_ENABLED(CONFIG_OF_ADDRESS) && is_of_node(fwnode))
- return of_iomap(to_of_node(fwnode), index);
-
- return NULL;
+ return fwnode_call_ptr_op(fwnode, iomap, index);
}
EXPORT_SYMBOL(fwnode_iomap);
*/
int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index)
{
- struct resource res;
- int ret;
-
- if (is_of_node(fwnode))
- return of_irq_get(to_of_node(fwnode), index);
-
- ret = acpi_irq_get(ACPI_HANDLE_FWNODE(fwnode), index, &res);
- if (ret)
- return ret;
-
- return res.start;
+ return fwnode_call_int_op(fwnode, irq_get, index);
}
EXPORT_SYMBOL(fwnode_irq_get);
parent = fwnode_graph_get_port_parent(prev);
else
parent = fwnode;
+ if (IS_ERR_OR_NULL(parent))
+ return NULL;
ep = fwnode_call_ptr_op(parent, graph_get_next_endpoint, prev);
+ if (ep)
+ return ep;
- if (IS_ERR_OR_NULL(ep) &&
- !IS_ERR_OR_NULL(parent) && !IS_ERR_OR_NULL(parent->secondary))
- ep = fwnode_graph_get_next_endpoint(parent->secondary, NULL);
-
- return ep;
+ return fwnode_graph_get_next_endpoint(parent->secondary, NULL);
}
EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);
projects / linux-block.git / commitdiff