From: Thierry Reding <treding@xxxxxxxxxx>
This driver uses bus_find_device() to go through every platform device
and match using the driver and device tree node. It's more efficient to
use driver_find_device() to iterate over all devices associated with a
particular driver, in which case the matching is reduced to the device
tree node and can be done using the common implementation.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/usb/phy/phy-isp1301.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c
index db68156568e6..a5f5dc0b8c18 100644
--- a/drivers/usb/phy/phy-isp1301.c
+++ b/drivers/usb/phy/phy-isp1301.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/i2c.h>
+#include <linux/of_device.h>
#include <linux/usb/phy.h>
#include <linux/usb/isp1301.h>
@@ -138,18 +139,12 @@ static struct i2c_driver isp1301_driver = {
module_i2c_driver(isp1301_driver);
-static int match(struct device *dev, void *data)
-{
- struct device_node *node = (struct device_node *)data;
- return (dev->of_node == node) &&
- (dev->driver == &isp1301_driver.driver);
-}
-
struct i2c_client *isp1301_get_client(struct device_node *node)
{
if (node) { /* reference of ISP1301 I2C node via DT */
- struct device *dev = bus_find_device(&i2c_bus_type, NULL,
- node, match);
+ struct device *dev = driver_find_device(&isp1301_driver.driver,
+ NULL, node,
+ of_device_match);
if (!dev)
return NULL;
return to_i2c_client(dev);
--
2.8.3
--
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