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authorSinan Kaya <okaya@codeaurora.org>2017-12-13 10:20:49 +0300
committerVinod Koul <vinod.koul@intel.com>2017-12-13 11:40:57 +0300
commitb283f157611f129f5bbbf7d06f5af860d76797fd (patch)
treebf89e94e72184a1a7a703e0b9c2b96ebd91b988d
parent80212a162329e590fde02d8457af16ea0ab0a55f (diff)
downloadlinux-b283f157611f129f5bbbf7d06f5af860d76797fd.tar.xz
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: Sinan Kaya <okaya@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
-rw-r--r--drivers/base/property.c7
-rw-r--r--include/linux/fwnode.h4
-rw-r--r--include/linux/property.h2
3 files changed, 13 insertions, 0 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 851b1b6596a4..09eaac9400ed 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -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);
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 411a84c6c400..4fa1a489efe4 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -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,
diff --git a/include/linux/property.h b/include/linux/property.h
index f6189a3ac63c..6653ed4b99f9 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -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);