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Commit b283f157 authored by Sinan Kaya's avatar Sinan Kaya Committed by Vinod Koul
Browse files

device property: Introduce a common API to fetch device match data 



There is an OF/ACPI function to obtain the driver data. We want to hide
OF/ACPI details from the device drivers and abstract following the device
family of functions.

Signed-off-by: default avatarSinan Kaya <okaya@codeaurora.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 80212a16

drivers/base/property.c

+7 −0
Original line number Diff line number Diff line
@@ -1340,3 +1340,10 @@ int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, 
	return fwnode_call_int_op(fwnode, graph_parse_endpoint, endpoint);

}

EXPORT_SYMBOL(fwnode_graph_parse_endpoint);



void *device_get_match_data(struct device *dev)

{

	return fwnode_call_ptr_op(dev_fwnode(dev), device_get_match_data,

				  dev);

}

EXPORT_SYMBOL_GPL(device_get_match_data);

include/linux/fwnode.h

+4 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
#include <linux/types.h>



struct fwnode_operations;

struct device;



struct fwnode_handle {

	struct fwnode_handle *secondary;
@@ -51,6 +52,7 @@ struct fwnode_reference_args { 
 * struct fwnode_operations - Operations for fwnode interface

 * @get: Get a reference to an fwnode.

 * @put: Put a reference to an fwnode.

 * @device_get_match_data: Return the device driver match data.

 * @property_present: Return true if a property is present.

 * @property_read_integer_array: Read an array of integer properties. Return

 *				 zero on success, a negative error code
@@ -71,6 +73,8 @@ struct fwnode_operations { 
	struct fwnode_handle *(*get)(struct fwnode_handle *fwnode);

	void (*put)(struct fwnode_handle *fwnode);

	bool (*device_is_available)(const struct fwnode_handle *fwnode);

	void *(*device_get_match_data)(const struct fwnode_handle *fwnode,

				       const struct device *dev);

	bool (*property_present)(const struct fwnode_handle *fwnode,

				 const char *propname);

	int (*property_read_int_array)(const struct fwnode_handle *fwnode,

include/linux/property.h

+2 −0
Original line number Diff line number Diff line
@@ -275,6 +275,8 @@ bool device_dma_supported(struct device *dev); 


enum dev_dma_attr device_get_dma_attr(struct device *dev);



void *device_get_match_data(struct device *dev);



int device_get_phy_mode(struct device *dev);



void *device_get_mac_address(struct device *dev, char *addr, int alen);