From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yu Chen Subject: [PATCH 08/10] usb: typec: Add support for usb role switch in rt1711h driver Date: Sat, 27 Oct 2018 17:58:18 +0800 Message-ID: <20181027095820.40056-9-chenyu56@huawei.com> References: <20181027095820.40056-1-chenyu56@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20181027095820.40056-1-chenyu56@huawei.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: suzhuangluan@hisilicon.com, kongfei@hisilicon.com, Yu Chen , Heikki Krogerus , Greg Kroah-Hartman , Lucas Tsai , shufan_lee , John Stultz , Binghui Wang List-Id: devicetree@vger.kernel.org This patch add struct device_connection to rt1711h driver to support find "usb-role-switch" in tcpm_register_port. Cc: Heikki Krogerus Cc: Greg Kroah-Hartman Cc: Lucas Tsai Cc: shufan_lee Cc: John Stultz Cc: Binghui Wang Signed-off-by: Yu Chen --- drivers/usb/typec/tcpm/tcpci_rt1711h.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c index 017389021b96..5f8b952612fe 100644 --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c @@ -39,6 +39,7 @@ struct rt1711h_chip { struct tcpci_data data; struct tcpci *tcpci; struct device *dev; + struct device_connection dev_conn; }; static int rt1711h_read16(struct rt1711h_chip *chip, unsigned int reg, u16 *val) @@ -237,6 +238,7 @@ static int rt1711h_probe(struct i2c_client *client, { int ret; struct rt1711h_chip *chip; + const char *dev_conn_end; ret = rt1711h_check_revision(client); if (ret < 0) { @@ -254,6 +256,7 @@ static int rt1711h_probe(struct i2c_client *client, return PTR_ERR(chip->data.regmap); chip->dev = &client->dev; + dev_set_name(chip->dev, "rt1711h"); i2c_set_clientdata(client, chip); ret = rt1711h_sw_reset(chip); @@ -264,6 +267,15 @@ static int rt1711h_probe(struct i2c_client *client, if (ret < 0) return ret; + ret = device_property_read_string(chip->dev, "dev-conn-end", + &dev_conn_end); + if (!ret) { + chip->dev_conn.endpoint[0] = "rt1711h"; + chip->dev_conn.endpoint[1] = dev_conn_end; + chip->dev_conn.id = "usb-role-switch"; + device_connection_add(&chip->dev_conn); + } + chip->data.init = rt1711h_init; chip->data.set_vconn = rt1711h_set_vconn; chip->data.start_drp_toggling = rt1711h_start_drp_toggling; @@ -279,6 +291,9 @@ static int rt1711h_remove(struct i2c_client *client) struct rt1711h_chip *chip = i2c_get_clientdata(client); tcpci_unregister_port(chip->tcpci); + if (chip->dev_conn.id) + device_connection_remove(&chip->dev_conn); + return 0; } -- 2.15.0-rc2