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Mon, 29 Nov 2021 07:30:24 +0000 Received: from PNZPR01MB4415.INDPRD01.PROD.OUTLOOK.COM ([fe80::7ca6:9165:19ec:4cd7]) by PNZPR01MB4415.INDPRD01.PROD.OUTLOOK.COM ([fe80::7ca6:9165:19ec:4cd7%5]) with mapi id 15.20.4734.024; Mon, 29 Nov 2021 07:30:24 +0000 From: Aditya Garg To: Thorsten Leemhuis CC: Marcel Holtmann , Orlando Chamberlain , Daniel Winkler , Greg KH , Johan Hedberg , "linux-bluetooth@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Luiz Augusto von Dentz , "regressions@lists.linux.dev" , "sonnysasaka@chromium.org" , "stable@vger.kernel.org" Subject: [PATCH 4/6] btbcm: disable read tx power for MacBook Pro 16,4 (16 inch, 2019) Thread-Topic: [PATCH 4/6] btbcm: disable read tx power for MacBook Pro 16,4 (16 inch, 2019) Thread-Index: AQHX5PL5As0z3EQYbkmkPAL7i0mDog== Date: Mon, 29 Nov 2021 07:30:24 +0000 Message-ID: <3E9D8424-A65C-4211-B5E4-B6D62400E711@live.com> References: <20211001083412.3078-1-redecorating@protonmail.com> <70a875d0-7162-d149-dbc1-c2f5e1a8e701@leemhuis.info> <20211116090128.17546-1-redecorating@protonmail.com> <3B8E16FA-97BF-40E5-9149-BBC3E2A245FE@live.com> <52DEDC31-EEB2-4F39-905F-D5E3F2BBD6C0@live.com> <8919a36b-e485-500a-2722-529ffa0d2598@leemhuis.info> <20211117124717.12352-1-redecorating@protonmail.com> <40550C00-4EE5-480F-AFD4-A2ACA01F9DBB@live.com> <332a19f1-30f0-7058-ac18-c21cf78759bb@leemhuis.info> <5B9FF471-42DD-44DA-A9CE-0A83BA7A4212@live.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-tmn: [YHhy18QfjCXPvGQP/fh+3mJH5s5ipxTm0koxojFY5h7t2tbijOs1hNKJtOEO3xMn] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: b588e600-c6b6-41f0-df08-08d9b30a1bbb x-ms-traffictypediagnostic: PN1PR0101MB1662: x-microsoft-antispam: BCL:0; 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charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: sct-15-20-3174-20-msonline-outlook-a1a1a.templateTenant X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PNZPR01MB4415.INDPRD01.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: b588e600-c6b6-41f0-df08-08d9b30a1bbb X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Nov 2021 07:30:24.5619 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: PN1PR0101MB1662 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Aditya Garg Bluetooth on Apple MacBook Pro 16,4 is unable to start due to LE Min/Max Tx= Power being queried on startup. Add a DMI based quirk so that it is disabl= ed. Signed-off-by: Aditya Garg --- drivers/bluetooth/btbcm.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c index 348a4afa0774e..88214b453b0ce 100644 --- a/drivers/bluetooth/btbcm.c +++ b/drivers/bluetooth/btbcm.c @@ -363,6 +363,15 @@ static const struct dmi_system_id disable_broken_read_= transmit_power[] =3D { DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"), }, }, + { + /* Match for Apple MacBook Pro 16,4 which needs + * Read LE Min/Max Tx Power to be disabled. + */ + .matches =3D { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"), + }, + }, { } }; =20