usb: typec: hd3ss3220: Start using struct typec_operations

Supplying the operation callbacks as part of a struct
typec_operations instead of as part of struct
typec_capability during port registration. After this there
is not need to keep the capabilities stored anywhere in the
driver.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-8-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/typec/hd3ss3220.c

@@ -37,7 +37,6 @@ struct hd3ss3220 {
 	struct regmap *regmap;
 	struct usb_role_switch	*role_sw;
 	struct typec_port *port;
-	struct typec_capability typec_cap;
 };
 
 static int hd3ss3220_set_source_pref(struct hd3ss3220 *hd3ss3220, int src_pref)
@@ -73,11 +72,9 @@ static enum usb_role hd3ss3220_get_attached_state(struct hd3ss3220 *hd3ss3220)
 	return attached_state;
 }
 
-static int hd3ss3220_dr_set(const struct typec_capability *cap,
-			    enum typec_data_role role)
+static int hd3ss3220_dr_set(struct typec_port *port, enum typec_data_role role)
 {
-	struct hd3ss3220 *hd3ss3220 = container_of(cap, struct hd3ss3220,
-						   typec_cap);
+	struct hd3ss3220 *hd3ss3220 = typec_get_drvdata(port);
 	enum usb_role role_val;
 	int pref, ret = 0;
 
@@ -98,6 +95,10 @@ static int hd3ss3220_dr_set(const struct typec_capability *cap,
 	return ret;
 }
 
+static const struct typec_operations hd3ss3220_ops = {
+	.dr_set = hd3ss3220_dr_set
+};
+
 static void hd3ss3220_set_role(struct hd3ss3220 *hd3ss3220)
 {
 	enum usb_role role_state = hd3ss3220_get_attached_state(hd3ss3220);
@@ -152,6 +153,7 @@ static const struct regmap_config config = {
 static int hd3ss3220_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
+	struct typec_capability typec_cap = { };
 	struct hd3ss3220 *hd3ss3220;
 	struct fwnode_handle *connector;
 	int ret;
@@ -180,13 +182,13 @@ static int hd3ss3220_probe(struct i2c_client *client,
 	if (IS_ERR(hd3ss3220->role_sw))
 		return PTR_ERR(hd3ss3220->role_sw);
 
-	hd3ss3220->typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
-	hd3ss3220->typec_cap.dr_set = hd3ss3220_dr_set;
-	hd3ss3220->typec_cap.type = TYPEC_PORT_DRP;
-	hd3ss3220->typec_cap.data = TYPEC_PORT_DRD;
+	typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
+	typec_cap.driver_data = hd3ss3220;
+	typec_cap.type = TYPEC_PORT_DRP;
+	typec_cap.data = TYPEC_PORT_DRD;
+	typec_cap.ops = &hd3ss3220_ops;
 
-	hd3ss3220->port = typec_register_port(&client->dev,
-					      &hd3ss3220->typec_cap);
+	hd3ss3220->port = typec_register_port(&client->dev, &typec_cap);
 	if (IS_ERR(hd3ss3220->port)) {
 		ret = PTR_ERR(hd3ss3220->port);
 		goto err_put_role;