drivers: Add generic helper to match by of_node

Add a helper to match device by the of_node. This will be later used
to provide wrappers to the device iterators for {bus/class/driver}_find_device().
Convert other users to reuse this new helper.

Cc: Alan Tull <[email protected]>
Cc: Andrew Lunn <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: David Airlie <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Florian Fainelli <[email protected]>
Cc: Frank Rowand <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Heiner Kallweit <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Jonathan Hunter <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Maarten Lankhorst <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Moritz Fischer <[email protected]>
Cc: Peter Rosin <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Srinivas Kandagatla <[email protected]>
Cc: Thierry Reding <[email protected]>
Cc: Thor Thayer <[email protected]>
Cc: Wolfram Sang <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Ulf Hansson <[email protected]>
Cc: Joe Perches <[email protected]>
Signed-off-by: Suzuki K Poulose <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

1 files changed, 1 insertions, 6 deletions

diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c
index 75f64abf9c81..e405309baadc 100644
--- a/drivers/fpga/of-fpga-region.c
+++ b/drivers/fpga/of-fpga-region.c
@@ -22,11 +22,6 @@ static const struct of_device_id fpga_region_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, fpga_region_of_match);
 
-static int fpga_region_of_node_match(struct device *dev, const void *data)
-{
-	return dev->of_node == data;
-}
-
 /**
  * of_fpga_region_find - find FPGA region
  * @np: device node of FPGA Region
@@ -37,7 +32,7 @@ static int fpga_region_of_node_match(struct device *dev, const void *data)
  */
 static struct fpga_region *of_fpga_region_find(struct device_node *np)
 {
-	return fpga_region_class_find(NULL, np, fpga_region_of_node_match);
+	return fpga_region_class_find(NULL, np, device_match_of_node);
 }
 
 /**