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Mon, 20 Jan 2020 06:43:17 +0000 From: Jun Li To: "linux@roeck-us.net" , "heikki.krogerus@linux.intel.com" CC: "gregkh@linuxfoundation.org" , "linux-usb@vger.kernel.org" , dl-linux-imx Subject: [PATCH v3] usb: typec: tcpci: mask event interrupts when remove driver Thread-Topic: [PATCH v3] usb: typec: tcpci: mask event interrupts when remove driver Thread-Index: AQHVz1zmtDK7zP6V60mVDiTi2K4ODQ== Date: Mon, 20 Jan 2020 06:43:19 +0000 Message-ID: <1579502333-4145-1-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: HK2PR06CA0002.apcprd06.prod.outlook.com (2603:1096:202:2e::14) 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: [119.31.174.66] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 864aa2d7-6f07-4cbd-bb40-08d79d740932 x-ms-traffictypediagnostic: VE1PR04MB6541:|VE1PR04MB6541: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:519; 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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: 864aa2d7-6f07-4cbd-bb40-08d79d740932 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Jan 2020 06:43:19.6009 (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: h3wPBwr6j03yMvFKu1xwY2Kx/1MOuwTMsdo8Bhxc2edynQLt6iAp3YiexMYYGReB X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6541 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This is to prevent any possible events generated while unregister tpcm port. Fixes: 74e656d6b0551 ("staging: typec: Type-C Port Controller Interface dri= ver (tcpci)") Signed-off-by: Li Jun --- drivers/usb/typec/tcpm/tcpci.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.= c index c1f7073..dfae41f 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -581,6 +581,12 @@ static int tcpci_probe(struct i2c_client *client, static int tcpci_remove(struct i2c_client *client) { struct tcpci_chip *chip =3D i2c_get_clientdata(client); + int err; + + /* Disable chip interrupts before unregistering port */ + err =3D tcpci_write16(chip->tcpci, TCPC_ALERT_MASK, 0); + if (err < 0) + return err; =20 tcpci_unregister_port(chip->tcpci); =20 --=20 2.7.4