summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/acpi/property.c9
-rw-r--r--drivers/base/property.c10
-rw-r--r--drivers/of/property.c6
-rw-r--r--include/linux/fwnode.h1
-rw-r--r--include/linux/property.h1
5 files changed, 27 insertions, 0 deletions
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index a24ca61294eb..917c789f953d 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1121,6 +1121,14 @@ int acpi_graph_get_remote_endpoint(struct fwnode_handle *fwnode,
return 0;
}
+static bool acpi_fwnode_device_is_available(struct fwnode_handle *fwnode)
+{
+ if (!is_acpi_device_node(fwnode))
+ return false;
+
+ return acpi_device_is_present(to_acpi_device_node(fwnode));
+}
+
static bool acpi_fwnode_property_present(struct fwnode_handle *fwnode,
const char *propname)
{
@@ -1216,6 +1224,7 @@ static int acpi_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
}
const struct fwnode_operations acpi_fwnode_ops = {
+ .device_is_available = acpi_fwnode_device_is_available,
.property_present = acpi_fwnode_property_present,
.property_read_int_array = acpi_fwnode_property_read_int_array,
.property_read_string_array = acpi_fwnode_property_read_string_array,
diff --git a/drivers/base/property.c b/drivers/base/property.c
index e1a58ac8840e..b979f8a2f4fb 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1022,6 +1022,16 @@ void fwnode_handle_put(struct fwnode_handle *fwnode)
EXPORT_SYMBOL_GPL(fwnode_handle_put);
/**
+ * fwnode_device_is_available - check if a device is available for use
+ * @fwnode: Pointer to the fwnode of the device.
+ */
+bool fwnode_device_is_available(struct fwnode_handle *fwnode)
+{
+ return fwnode_call_int_op(fwnode, device_is_available);
+}
+EXPORT_SYMBOL_GPL(fwnode_device_is_available);
+
+/**
* device_get_child_node_count - return the number of child nodes for device
* @dev: Device to cound the child nodes for
*/
diff --git a/drivers/of/property.c b/drivers/of/property.c
index e859e41e33f3..c96389b7c6b3 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -775,6 +775,11 @@ static void of_fwnode_put(struct fwnode_handle *fwnode)
of_node_put(to_of_node(fwnode));
}
+static bool of_fwnode_device_is_available(struct fwnode_handle *fwnode)
+{
+ return of_device_is_available(to_of_node(fwnode));
+}
+
static bool of_fwnode_property_present(struct fwnode_handle *fwnode,
const char *propname)
{
@@ -895,6 +900,7 @@ static int of_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
const struct fwnode_operations of_fwnode_ops = {
.get = of_fwnode_get,
.put = of_fwnode_put,
+ .device_is_available = of_fwnode_device_is_available,
.property_present = of_fwnode_property_present,
.property_read_int_array = of_fwnode_property_read_int_array,
.property_read_string_array = of_fwnode_property_read_string_array,
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index e315d867d631..9ab375419189 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -66,6 +66,7 @@ struct fwnode_endpoint {
struct fwnode_operations {
void (*get)(struct fwnode_handle *fwnode);
void (*put)(struct fwnode_handle *fwnode);
+ bool (*device_is_available)(struct fwnode_handle *fwnode);
bool (*property_present)(struct fwnode_handle *fwnode,
const char *propname);
int (*property_read_int_array)(struct fwnode_handle *fwnode,
diff --git a/include/linux/property.h b/include/linux/property.h
index 2f482616a2f2..7be014af78ed 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -51,6 +51,7 @@ int device_property_read_string(struct device *dev, const char *propname,
int device_property_match_string(struct device *dev,
const char *propname, const char *string);
+bool fwnode_device_is_available(struct fwnode_handle *fwnode);
bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname);
int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,
const char *propname, u8 *val,