Commit 548aa0e3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'devprop-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 

Pull device properties framework updates from Rafael Wysocki:
 "These mostly rearrange the device properties core code and add a few
  helper functions to it as a foundation for future work.

  Specifics:

   - Rearrange the core device properties code by moving the code
     specific to each supported platform configuration framework (ACPI,
     DT and build-in) into a separate file (Sakari Ailus).

   - Add helper functions for accessing device properties in a
     firmware-agnostic way (Sakari Ailus, Kieran Bingham)"

* tag 'devprop-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: Add fwnode_graph_get_port_parent
  device property: Add FW type agnostic fwnode_graph_get_remote_node
  device property: Introduce fwnode_device_is_available()
  device property: Move fwnode graph ops to firmware specific locations
  device property: Move FW type specific functionality to FW specific files
  ACPI: Constify argument to acpi_device_is_present()
parents 32261868 6a71d8d7

drivers/acpi/device_pm.c

+3 −1
Original line number Diff line number Diff line
@@ -262,8 +262,10 @@ int acpi_bus_init_power(struct acpi_device *device) 
		return -EINVAL;



	device->power.state = ACPI_STATE_UNKNOWN;

	if (!acpi_device_is_present(device))

	if (!acpi_device_is_present(device)) {

		device->flags.initialized = false;

		return -ENXIO;

	}



	result = acpi_device_get_power(device, &state);

	if (result)

drivers/acpi/internal.h

+1 −1
Original line number Diff line number Diff line
@@ -111,7 +111,7 @@ int acpi_device_setup_files(struct acpi_device *dev); 
void acpi_device_remove_files(struct acpi_device *dev);

void acpi_device_add_finalize(struct acpi_device *device);

void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);

bool acpi_device_is_present(struct acpi_device *adev);

bool acpi_device_is_present(const struct acpi_device *adev);

bool acpi_device_is_battery(struct acpi_device *adev);

bool acpi_device_is_first_physical_node(struct acpi_device *adev,

					const struct device *dev);

drivers/acpi/property.c

+117 −0
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ static bool acpi_nondev_subnode_extract(const union acpi_object *desc, 


	dn->name = link->package.elements[0].string.pointer;

	dn->fwnode.type = FWNODE_ACPI_DATA;

	dn->fwnode.ops = &acpi_fwnode_ops;

	dn->parent = parent;

	INIT_LIST_HEAD(&dn->data.subnodes);
@@ -1119,3 +1120,119 @@ 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)

{

	return !acpi_node_prop_get(fwnode, propname, NULL);

}



static int acpi_fwnode_property_read_int_array(struct fwnode_handle *fwnode,

					       const char *propname,

					       unsigned int elem_size,

					       void *val, size_t nval)

{

	enum dev_prop_type type;



	switch (elem_size) {

	case sizeof(u8):

		type = DEV_PROP_U8;

		break;

	case sizeof(u16):

		type = DEV_PROP_U16;

		break;

	case sizeof(u32):

		type = DEV_PROP_U32;

		break;

	case sizeof(u64):

		type = DEV_PROP_U64;

		break;

	default:

		return -ENXIO;

	}



	return acpi_node_prop_read(fwnode, propname, type, val, nval);

}



static int acpi_fwnode_property_read_string_array(struct fwnode_handle *fwnode,

						  const char *propname,

						  const char **val, size_t nval)

{

	return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,

				   val, nval);

}



static struct fwnode_handle *

acpi_fwnode_get_named_child_node(struct fwnode_handle *fwnode,

				 const char *childname)

{

	struct fwnode_handle *child;



	/*

	 * Find first matching named child node of this fwnode.

	 * For ACPI this will be a data only sub-node.

	 */

	fwnode_for_each_child_node(fwnode, child)

		if (acpi_data_node_match(child, childname))

			return child;



	return NULL;

}



static struct fwnode_handle *

acpi_fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,

				    struct fwnode_handle *prev)

{

	struct fwnode_handle *endpoint;



	endpoint = acpi_graph_get_next_endpoint(fwnode, prev);

	if (IS_ERR(endpoint))

		return NULL;



	return endpoint;

}



static struct fwnode_handle *

acpi_fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode)

{

	struct fwnode_handle *endpoint = NULL;



	acpi_graph_get_remote_endpoint(fwnode, NULL, NULL, &endpoint);



	return endpoint;

}



static int acpi_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,

					    struct fwnode_endpoint *endpoint)

{

	struct fwnode_handle *port_fwnode = fwnode_get_parent(fwnode);



	endpoint->local_fwnode = fwnode;



	fwnode_property_read_u32(port_fwnode, "port", &endpoint->port);

	fwnode_property_read_u32(fwnode, "endpoint", &endpoint->id);



	return 0;

}



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,

	.get_parent = acpi_node_get_parent,

	.get_next_child_node = acpi_get_next_subnode,

	.get_named_child_node = acpi_fwnode_get_named_child_node,

	.graph_get_next_endpoint = acpi_fwnode_graph_get_next_endpoint,

	.graph_get_remote_endpoint = acpi_fwnode_graph_get_remote_endpoint,

	.graph_get_port_parent = acpi_node_get_parent,

	.graph_parse_endpoint = acpi_fwnode_graph_parse_endpoint,

};

drivers/acpi/scan.c

+4 −6
Original line number Diff line number Diff line
@@ -1468,6 +1468,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 
	device->handle = handle;

	device->parent = acpi_bus_get_parent(handle);

	device->fwnode.type = FWNODE_ACPI;

	device->fwnode.ops = &acpi_fwnode_ops;

	acpi_set_device_status(device, sta);

	acpi_device_get_busid(device);

	acpi_set_pnp_ids(handle, &device->pnp, type);
@@ -1600,13 +1601,9 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type, 
	return 0;

}



bool acpi_device_is_present(struct acpi_device *adev)

bool acpi_device_is_present(const struct acpi_device *adev)

{

	if (adev->status.present || adev->status.functional)

		return true;



	adev->flags.initialized = false;

	return false;

	return adev->status.present || adev->status.functional;

}



static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler,
@@ -1839,6 +1836,7 @@ static void acpi_bus_attach(struct acpi_device *device) 
	acpi_bus_get_status(device);

	/* Skip devices that are not present. */

	if (!acpi_device_is_present(device)) {

		device->flags.initialized = false;

		acpi_device_clear_enumerated(device);

		device->flags.power_manageable = 0;

		return;

drivers/base/property.c

+149 −199
Original line number Diff line number Diff line
@@ -187,6 +187,50 @@ struct fwnode_handle *dev_fwnode(struct device *dev) 
}

EXPORT_SYMBOL_GPL(dev_fwnode);



static bool pset_fwnode_property_present(struct fwnode_handle *fwnode,

					 const char *propname)

{

	return !!pset_prop_get(to_pset_node(fwnode), propname);

}



static int pset_fwnode_read_int_array(struct fwnode_handle *fwnode,

				      const char *propname,

				      unsigned int elem_size, void *val,

				      size_t nval)

{

	struct property_set *node = to_pset_node(fwnode);



	if (!val)

		return pset_prop_count_elems_of_size(node, propname, elem_size);



	switch (elem_size) {

	case sizeof(u8):

		return pset_prop_read_u8_array(node, propname, val, nval);

	case sizeof(u16):

		return pset_prop_read_u16_array(node, propname, val, nval);

	case sizeof(u32):

		return pset_prop_read_u32_array(node, propname, val, nval);

	case sizeof(u64):

		return pset_prop_read_u64_array(node, propname, val, nval);

	}



	return -ENXIO;

}



static int pset_fwnode_property_read_string_array(struct fwnode_handle *fwnode,

						  const char *propname,

						  const char **val, size_t nval)

{

	return pset_prop_read_string_array(to_pset_node(fwnode), propname,

					   val, nval);

}



static const struct fwnode_operations pset_fwnode_ops = {

	.property_present = pset_fwnode_property_present,

	.property_read_int_array = pset_fwnode_read_int_array,

	.property_read_string_array = pset_fwnode_property_read_string_array,

};



/**

 * device_property_present - check if a property of a device is present

 * @dev: Device whose property is being checked
@@ -200,18 +244,6 @@ bool device_property_present(struct device *dev, const char *propname) 
}

EXPORT_SYMBOL_GPL(device_property_present);



static bool __fwnode_property_present(struct fwnode_handle *fwnode,

				      const char *propname)

{

	if (is_of_node(fwnode))

		return of_property_read_bool(to_of_node(fwnode), propname);

	else if (is_acpi_node(fwnode))

		return !acpi_node_prop_get(fwnode, propname, NULL);

	else if (is_pset_node(fwnode))

		return !!pset_prop_get(to_pset_node(fwnode), propname);

	return false;

}



/**

 * fwnode_property_present - check if a property of a firmware node is present

 * @fwnode: Firmware node whose property to check
@@ -221,10 +253,11 @@ bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname) 
{

	bool ret;



	ret = __fwnode_property_present(fwnode, propname);

	ret = fwnode_call_int_op(fwnode, property_present, propname);

	if (ret == false && !IS_ERR_OR_NULL(fwnode) &&

	    !IS_ERR_OR_NULL(fwnode->secondary))

		ret = __fwnode_property_present(fwnode->secondary, propname);

		ret = fwnode_call_int_op(fwnode->secondary, property_present,

					 propname);

	return ret;

}

EXPORT_SYMBOL_GPL(fwnode_property_present);
@@ -398,42 +431,23 @@ int device_property_match_string(struct device *dev, const char *propname, 
}

EXPORT_SYMBOL_GPL(device_property_match_string);



#define OF_DEV_PROP_READ_ARRAY(node, propname, type, val, nval)				\

	(val) ? of_property_read_##type##_array((node), (propname), (val), (nval))	\

	      : of_property_count_elems_of_size((node), (propname), sizeof(type))



#define PSET_PROP_READ_ARRAY(node, propname, type, val, nval)				\

	(val) ? pset_prop_read_##type##_array((node), (propname), (val), (nval))	\

	      : pset_prop_count_elems_of_size((node), (propname), sizeof(type))



#define FWNODE_PROP_READ(_fwnode_, _propname_, _type_, _proptype_, _val_, _nval_)	\

({											\

	int _ret_;									\

	if (is_of_node(_fwnode_))							\

		_ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_,	\

					       _type_, _val_, _nval_);			\

	else if (is_acpi_node(_fwnode_))						\

		_ret_ = acpi_node_prop_read(_fwnode_, _propname_, _proptype_,		\

					    _val_, _nval_);				\

	else if (is_pset_node(_fwnode_)) 						\

		_ret_ = PSET_PROP_READ_ARRAY(to_pset_node(_fwnode_), _propname_,	\

					     _type_, _val_, _nval_);			\

	else										\

		_ret_ = -ENXIO;								\

	_ret_;										\

})



#define FWNODE_PROP_READ_ARRAY(_fwnode_, _propname_, _type_, _proptype_, _val_, _nval_)	\

({											\

	int _ret_;									\

	_ret_ = FWNODE_PROP_READ(_fwnode_, _propname_, _type_, _proptype_,		\

				 _val_, _nval_);					\

	if (_ret_ == -EINVAL && !IS_ERR_OR_NULL(_fwnode_) &&				\

	    !IS_ERR_OR_NULL(_fwnode_->secondary))					\

		_ret_ = FWNODE_PROP_READ(_fwnode_->secondary, _propname_, _type_,	\

				_proptype_, _val_, _nval_);				\

	_ret_;										\

})

static int fwnode_property_read_int_array(struct fwnode_handle *fwnode,

					  const char *propname,

					  unsigned int elem_size, void *val,

					  size_t nval)

{

	int ret;



	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);



	return ret;

}



/**

 * fwnode_property_read_u8_array - return a u8 array property of firmware node
@@ -456,7 +470,7 @@ EXPORT_SYMBOL_GPL(device_property_match_string); 
int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,

				  const char *propname, u8 *val, size_t nval)

{

	return FWNODE_PROP_READ_ARRAY(fwnode, propname, u8, DEV_PROP_U8,

	return fwnode_property_read_int_array(fwnode, propname, sizeof(u8),

					      val, nval);

}

EXPORT_SYMBOL_GPL(fwnode_property_read_u8_array);
@@ -482,7 +496,7 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_u8_array); 
int fwnode_property_read_u16_array(struct fwnode_handle *fwnode,

				   const char *propname, u16 *val, size_t nval)

{

	return FWNODE_PROP_READ_ARRAY(fwnode, propname, u16, DEV_PROP_U16,

	return fwnode_property_read_int_array(fwnode, propname, sizeof(u16),

					      val, nval);

}

EXPORT_SYMBOL_GPL(fwnode_property_read_u16_array);
@@ -508,7 +522,7 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_u16_array); 
int fwnode_property_read_u32_array(struct fwnode_handle *fwnode,

				   const char *propname, u32 *val, size_t nval)

{

	return FWNODE_PROP_READ_ARRAY(fwnode, propname, u32, DEV_PROP_U32,

	return fwnode_property_read_int_array(fwnode, propname, sizeof(u32),

					      val, nval);

}

EXPORT_SYMBOL_GPL(fwnode_property_read_u32_array);
@@ -534,29 +548,11 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_u32_array); 
int fwnode_property_read_u64_array(struct fwnode_handle *fwnode,

				   const char *propname, u64 *val, size_t nval)

{

	return FWNODE_PROP_READ_ARRAY(fwnode, propname, u64, DEV_PROP_U64,

	return fwnode_property_read_int_array(fwnode, propname, sizeof(u64),

					      val, nval);

}

EXPORT_SYMBOL_GPL(fwnode_property_read_u64_array);



static int __fwnode_property_read_string_array(struct fwnode_handle *fwnode,

					       const char *propname,

					       const char **val, size_t nval)

{

	if (is_of_node(fwnode))

		return val ?

			of_property_read_string_array(to_of_node(fwnode),

						      propname, val, nval) :

			of_property_count_strings(to_of_node(fwnode), propname);

	else if (is_acpi_node(fwnode))

		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,

					   val, nval);

	else if (is_pset_node(fwnode))

		return pset_prop_read_string_array(to_pset_node(fwnode),

						   propname, val, nval);

	return -ENXIO;

}



/**

 * fwnode_property_read_string_array - return string array property of a node

 * @fwnode: Firmware node to get the property of
@@ -581,11 +577,13 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode, 
{

	int ret;



	ret = __fwnode_property_read_string_array(fwnode, propname, val, nval);

	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_property_read_string_array(fwnode->secondary,

							  propname, val, nval);

		ret = fwnode_call_int_op(fwnode->secondary,

					 property_read_string_array, propname,

					 val, nval);

	return ret;

}

EXPORT_SYMBOL_GPL(fwnode_property_read_string_array);
@@ -903,6 +901,7 @@ int device_add_properties(struct device *dev, 
		return PTR_ERR(p);



	p->fwnode.type = FWNODE_PDATA;

	p->fwnode.ops = &pset_fwnode_ops;

	set_secondary_fwnode(dev, &p->fwnode);

	return 0;

}
@@ -938,19 +937,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_next_parent); 
 */

struct fwnode_handle *fwnode_get_parent(struct fwnode_handle *fwnode)

{

	struct fwnode_handle *parent = NULL;



	if (is_of_node(fwnode)) {

		struct device_node *node;



		node = of_get_parent(to_of_node(fwnode));

		if (node)

			parent = &node->fwnode;

	} else if (is_acpi_node(fwnode)) {

		parent = acpi_node_get_parent(fwnode);

	}



	return parent;

	return fwnode_call_ptr_op(fwnode, get_parent);

}

EXPORT_SYMBOL_GPL(fwnode_get_parent);
@@ -962,18 +949,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_parent); 
struct fwnode_handle *fwnode_get_next_child_node(struct fwnode_handle *fwnode,

						 struct fwnode_handle *child)

{

	if (is_of_node(fwnode)) {

		struct device_node *node;



		node = of_get_next_available_child(to_of_node(fwnode),

						   to_of_node(child));

		if (node)

			return &node->fwnode;

	} else if (is_acpi_node(fwnode)) {

		return acpi_get_next_subnode(fwnode, child);

	}



	return NULL;

	return fwnode_call_ptr_op(fwnode, get_next_child_node, child);

}

EXPORT_SYMBOL_GPL(fwnode_get_next_child_node);
@@ -1005,23 +981,7 @@ EXPORT_SYMBOL_GPL(device_get_next_child_node); 
struct fwnode_handle *fwnode_get_named_child_node(struct fwnode_handle *fwnode,

						  const char *childname)

{

	struct fwnode_handle *child;



	/*

	 * Find first matching named child node of this fwnode.

	 * For ACPI this will be a data only sub-node.

	 */

	fwnode_for_each_child_node(fwnode, child) {

		if (is_of_node(child)) {

			if (!of_node_cmp(to_of_node(child)->name, childname))

				return child;

		} else if (is_acpi_data_node(child)) {

			if (acpi_data_node_match(child, childname))

				return child;

		}

	}



	return NULL;

	return fwnode_call_ptr_op(fwnode, get_named_child_node, childname);

}

EXPORT_SYMBOL_GPL(fwnode_get_named_child_node);
@@ -1043,8 +1003,7 @@ EXPORT_SYMBOL_GPL(device_get_named_child_node); 
 */

void fwnode_handle_get(struct fwnode_handle *fwnode)

{

	if (is_of_node(fwnode))

		of_node_get(to_of_node(fwnode));

	fwnode_call_void_op(fwnode, get);

}

EXPORT_SYMBOL_GPL(fwnode_handle_get);
@@ -1058,11 +1017,20 @@ EXPORT_SYMBOL_GPL(fwnode_handle_get); 
 */

void fwnode_handle_put(struct fwnode_handle *fwnode)

{

	if (is_of_node(fwnode))

		of_node_put(to_of_node(fwnode));

	fwnode_call_void_op(fwnode, put);

}

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
@@ -1198,26 +1166,29 @@ struct fwnode_handle * 
fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,

			       struct fwnode_handle *prev)

{

	struct fwnode_handle *endpoint = NULL;



	if (is_of_node(fwnode)) {

		struct device_node *node;

	return fwnode_call_ptr_op(fwnode, graph_get_next_endpoint, prev);

}

EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);



		node = of_graph_get_next_endpoint(to_of_node(fwnode),

						  to_of_node(prev));

/**

 * fwnode_graph_get_port_parent - Return the device fwnode of a port endpoint

 * @endpoint: Endpoint firmware node of the port

 *

 * Return: the firmware node of the device the @endpoint belongs to.

 */

struct fwnode_handle *

fwnode_graph_get_port_parent(struct fwnode_handle *endpoint)

{

	struct fwnode_handle *port, *parent;



		if (node)

			endpoint = &node->fwnode;

	} else if (is_acpi_node(fwnode)) {

		endpoint = acpi_graph_get_next_endpoint(fwnode, prev);

		if (IS_ERR(endpoint))

			endpoint = NULL;

	}

	port = fwnode_get_parent(endpoint);

	parent = fwnode_call_ptr_op(port, graph_get_port_parent);



	return endpoint;

	fwnode_handle_put(port);



	return parent;

}

EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);

EXPORT_SYMBOL_GPL(fwnode_graph_get_port_parent);



/**

 * fwnode_graph_get_remote_port_parent - Return fwnode of a remote device
@@ -1228,22 +1199,12 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint); 
struct fwnode_handle *

fwnode_graph_get_remote_port_parent(struct fwnode_handle *fwnode)

{

	struct fwnode_handle *parent = NULL;

	struct fwnode_handle *endpoint, *parent;



	if (is_of_node(fwnode)) {

		struct device_node *node;

	endpoint = fwnode_graph_get_remote_endpoint(fwnode);

	parent = fwnode_graph_get_port_parent(endpoint);



		node = of_graph_get_remote_port_parent(to_of_node(fwnode));

		if (node)

			parent = &node->fwnode;

	} else if (is_acpi_node(fwnode)) {

		int ret;



		ret = acpi_graph_get_remote_endpoint(fwnode, &parent, NULL,

						     NULL);

		if (ret)

			return NULL;

	}

	fwnode_handle_put(endpoint);



	return parent;

}
@@ -1257,23 +1218,7 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port_parent); 
 */

struct fwnode_handle *fwnode_graph_get_remote_port(struct fwnode_handle *fwnode)

{

	struct fwnode_handle *port = NULL;



	if (is_of_node(fwnode)) {

		struct device_node *node;



		node = of_graph_get_remote_port(to_of_node(fwnode));

		if (node)

			port = &node->fwnode;

	} else if (is_acpi_node(fwnode)) {

		int ret;



		ret = acpi_graph_get_remote_endpoint(fwnode, NULL, &port, NULL);

		if (ret)

			return NULL;

	}



	return port;

	return fwnode_get_next_parent(fwnode_graph_get_remote_endpoint(fwnode));

}

EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port);
@@ -1286,27 +1231,46 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port); 
struct fwnode_handle *

fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode)

{

	struct fwnode_handle *endpoint = NULL;

	return fwnode_call_ptr_op(fwnode, graph_get_remote_endpoint);

}

EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint);



	if (is_of_node(fwnode)) {

		struct device_node *node;

/**

 * fwnode_graph_get_remote_node - get remote parent node for given port/endpoint

 * @fwnode: pointer to parent fwnode_handle containing graph port/endpoint

 * @port_id: identifier of the parent port node

 * @endpoint_id: identifier of the endpoint node

 *

 * Return: Remote fwnode handle associated with remote endpoint node linked

 *	   to @node. Use fwnode_node_put() on it when done.

 */

struct fwnode_handle *fwnode_graph_get_remote_node(struct fwnode_handle *fwnode,

						   u32 port_id, u32 endpoint_id)

{

	struct fwnode_handle *endpoint = NULL;



		node = of_parse_phandle(to_of_node(fwnode), "remote-endpoint",

					0);

		if (node)

			endpoint = &node->fwnode;

	} else if (is_acpi_node(fwnode)) {

	while ((endpoint = fwnode_graph_get_next_endpoint(fwnode, endpoint))) {

		struct fwnode_endpoint fwnode_ep;

		struct fwnode_handle *remote;

		int ret;



		ret = acpi_graph_get_remote_endpoint(fwnode, NULL, NULL,

						     &endpoint);

		if (ret)

		ret = fwnode_graph_parse_endpoint(endpoint, &fwnode_ep);

		if (ret < 0)

			continue;



		if (fwnode_ep.port != port_id || fwnode_ep.id != endpoint_id)

			continue;



		remote = fwnode_graph_get_remote_port_parent(endpoint);

		if (!remote)

			return NULL;



		return fwnode_device_is_available(remote) ? remote : NULL;

	}



	return endpoint;

	return NULL;

}

EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint);

EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_node);



/**

 * fwnode_graph_parse_endpoint - parse common endpoint node properties
@@ -1320,22 +1284,8 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint); 
int fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,

				struct fwnode_endpoint *endpoint)

{

	struct fwnode_handle *port_fwnode = fwnode_get_parent(fwnode);



	memset(endpoint, 0, sizeof(*endpoint));



	endpoint->local_fwnode = fwnode;



	if (is_acpi_node(port_fwnode)) {

		fwnode_property_read_u32(port_fwnode, "port", &endpoint->port);

		fwnode_property_read_u32(fwnode, "endpoint", &endpoint->id);

	} else {

		fwnode_property_read_u32(port_fwnode, "reg", &endpoint->port);

		fwnode_property_read_u32(fwnode, "reg", &endpoint->id);

	}



	fwnode_handle_put(port_fwnode);



	return 0;

	return fwnode_call_int_op(fwnode, graph_parse_endpoint, endpoint);

}

EXPORT_SYMBOL(fwnode_graph_parse_endpoint);

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