3 files changed, 23 insertions, 4 deletions
diff --git a/drivers/hid/intel-ish-hid/ishtp-hid-client.c b/drivers/hid/intel-ish-hid/ishtp-hid-client.c
index 58773a3b5150..b86290611a5f 100644
--- a/drivers/hid/intel-ish-hid/ishtp-hid-client.c
+++ b/drivers/hid/intel-ish-hid/ishtp-hid-client.c
@@ -803,10 +803,6 @@ static int hid_ishtp_cl_probe(struct ishtp_cl_device *cl_device)
 	if (!cl_device)
 		return	-ENODEV;
 
-	if (!guid_equal(&hid_ishtp_guid,
-			&cl_device->fw_client->props.protocol_name))
-		return	-ENODEV;
-
 	client_data = devm_kzalloc(&cl_device->dev, sizeof(*client_data),
 				   GFP_KERNEL);
 	if (!client_data)
@@ -937,6 +933,7 @@ static const struct dev_pm_ops hid_ishtp_pm_ops = {
 
 static struct ishtp_cl_driver	hid_ishtp_cl_driver = {
 	.name = "ish-hid",
+	.guid = &hid_ishtp_guid,
 	.probe = hid_ishtp_cl_probe,
 	.remove = hid_ishtp_cl_remove,
 	.reset = hid_ishtp_cl_reset,
diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c
index d5f4b6438d86..6348fee8aadc 100644
--- a/drivers/hid/intel-ish-hid/ishtp/bus.c
+++ b/drivers/hid/intel-ish-hid/ishtp/bus.c
@@ -220,6 +220,26 @@ static int ishtp_cl_device_probe(struct device *dev)
 }
 
 /**
+ * ishtp_cl_bus_match() - Bus match() callback
+ * @dev: the device structure
+ * @drv: the driver structure
+ *
+ * This is a bus match callback, called when a new ishtp_cl_device is
+ * registered during ishtp bus client enumeration. Use the guid_t in
+ * drv and dev to decide whether they match or not.
+ *
+ * Return: 1 if dev & drv matches, 0 otherwise.
+ */
+static int ishtp_cl_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct ishtp_cl_device *device = to_ishtp_cl_device(dev);
+	struct ishtp_cl_driver *driver = to_ishtp_cl_driver(drv);
+
+	return guid_equal(driver->guid,
+			  &device->fw_client->props.protocol_name);
+}
+
+/**
  * ishtp_cl_device_remove() - Bus remove() callback
  * @dev: the device structure
  *
@@ -372,6 +392,7 @@ static struct bus_type ishtp_cl_bus_type = {
 	.name		= "ishtp",
 	.dev_groups	= ishtp_cl_dev_groups,
 	.probe		= ishtp_cl_device_probe,
+	.match		= ishtp_cl_bus_match,
 	.remove		= ishtp_cl_device_remove,
 	.pm		= &ishtp_cl_bus_dev_pm_ops,
 	.uevent		= ishtp_cl_uevent,
diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.h b/drivers/hid/intel-ish-hid/ishtp/bus.h
index 4cf7ad586c37..c96e7fb42f01 100644
--- a/drivers/hid/intel-ish-hid/ishtp/bus.h
+++ b/drivers/hid/intel-ish-hid/ishtp/bus.h
@@ -64,6 +64,7 @@ struct ishtp_cl_device {
 struct ishtp_cl_driver {
 	struct device_driver driver;
 	const char *name;
+	const guid_t *guid;
 	int (*probe)(struct ishtp_cl_device *dev);
 	int (*remove)(struct ishtp_cl_device *dev);
 	int (*reset)(struct ishtp_cl_device *dev);