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Fri, 27 Dec 2019 10:39:15 +0000 From: Jun Li To: "linux@roeck-us.net" , "heikki.krogerus@linux.intel.com" CC: "gregkh@linuxfoundation.org" , Jun Li , dl-linux-imx , "linux-usb@vger.kernel.org" Subject: [PATCH 2/2] usb: typec: tcpm: set correct data role for non-DRD Thread-Topic: [PATCH 2/2] usb: typec: tcpm: set correct data role for non-DRD Thread-Index: AQHVvKHjC6zqhzWfdEevqj0S0FBRhw== Date: Fri, 27 Dec 2019 10:39:17 +0000 Message-ID: <1577442957-6921-1-git-send-email-jun.li@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK2P15301CA0003.APCP153.PROD.OUTLOOK.COM (2603:1096:202:1::13) To VE1PR04MB6528.eurprd04.prod.outlook.com (2603:10a6:803:127::18) authentication-results: spf=none (sender IP is ) smtp.mailfrom=jun.li@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [119.31.174.67] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: e13ca2f3-229c-45a0-67fa-08d78ab905f5 x-ms-traffictypediagnostic: VE1PR04MB6351:|VE1PR04MB6351: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:1265; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: e13ca2f3-229c-45a0-67fa-08d78ab905f5 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Dec 2019 10:39:17.1825 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: uB5g5HUwGII9eGq24DhPK8YKF2yYyRdhDPiKDAc2hiRLh0CS4ZpDC0RZJxwhvdga X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6351 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Li Jun Since the typec port data role is separated from power role, so check the port data capability when setting data role. Signed-off-by: Li Jun --- drivers/usb/typec/tcpm/tcpm.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 56fc356..1f0d82e 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -780,7 +780,7 @@ static int tcpm_set_roles(struct tcpm_port *port, bool = attached, enum typec_role role, enum typec_data_role data) { enum typec_orientation orientation; - enum usb_role usb_role; + enum usb_role usb_role =3D USB_ROLE_NONE; int ret; =20 if (port->polarity =3D=3D TYPEC_POLARITY_CC1) @@ -788,10 +788,20 @@ static int tcpm_set_roles(struct tcpm_port *port, boo= l attached, else orientation =3D TYPEC_ORIENTATION_REVERSE; =20 - if (data =3D=3D TYPEC_HOST) - usb_role =3D USB_ROLE_HOST; - else - usb_role =3D USB_ROLE_DEVICE; + if (port->typec_caps.data =3D=3D TYPEC_PORT_DRD) { + if (data =3D=3D TYPEC_HOST) + usb_role =3D USB_ROLE_HOST; + else + usb_role =3D USB_ROLE_DEVICE; + } else if (port->typec_caps.data =3D=3D TYPEC_PORT_DFP) { + if (data =3D=3D TYPEC_HOST) + usb_role =3D USB_ROLE_HOST; + data =3D TYPEC_HOST; + } else { + if (data =3D=3D TYPEC_DEVICE) + usb_role =3D USB_ROLE_DEVICE; + data =3D TYPEC_DEVICE; + } =20 ret =3D tcpm_mux_set(port, TYPEC_STATE_USB, usb_role, orientation); if (ret < 0) @@ -1817,7 +1827,7 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *po= rt, tcpm_set_state(port, SOFT_RESET, 0); break; case PD_CTRL_DR_SWAP: - if (port->port_type !=3D TYPEC_PORT_DRP) { + if (port->typec_caps.data !=3D TYPEC_PORT_DRD) { tcpm_queue_message(port, PD_MSG_CTRL_REJECT); break; } @@ -3969,7 +3979,7 @@ static int tcpm_dr_set(struct typec_port *p, enum typ= ec_data_role data) mutex_lock(&port->swap_lock); mutex_lock(&port->lock); =20 - if (port->port_type !=3D TYPEC_PORT_DRP) { + if (port->typec_caps.data !=3D TYPEC_PORT_DRD) { ret =3D -EINVAL; goto port_unlock; } --=20 2.7.4