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Wed, 21 Sep 2022 09:54:36 -0500 From: Mario Limonciello To: Mika Westerberg , CC: Andreas Noever , Michael Jamet , Yehezkel Bernat , , Mario Limonciello , Subject: [PATCH 0/2] Fix some hotplug event issues Date: Wed, 21 Sep 2022 09:54:31 -0500 Message-ID: <20220921145434.21659-1-mario.limonciello@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT004:EE_|DS7PR12MB5719:EE_ X-MS-Office365-Filtering-Correlation-Id: 8c5b1574-c710-4104-4d73-08da9be134c4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(39860400002)(376002)(396003)(136003)(346002)(451199015)(36840700001)(46966006)(40470700004)(8676002)(4744005)(36860700001)(44832011)(478600001)(186003)(70206006)(54906003)(70586007)(36756003)(41300700001)(86362001)(356005)(8936002)(7696005)(4326008)(26005)(81166007)(82310400005)(336012)(82740400003)(40480700001)(110136005)(16526019)(5660300002)(40460700003)(1076003)(6666004)(316002)(2906002)(426003)(47076005)(2616005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Sep 2022 14:54:38.0479 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8c5b1574-c710-4104-4d73-08da9be134c4 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT004.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB5719 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On AMD Pink Sardine it's been observed that if another CM has run before the Linux CM that some registers may not match expectations which leads to a non-functional hotplug for PCIe devices. Explicitly set these registers that have been observed to cause problems with hotplug to the defaults of the USB4 spec. Mario Limonciello (2): thunderbolt: Explicitly reset plug events delay back to USB4 spec value thunderbolt: Explicitly enable lane adapter hotplug events at startup drivers/thunderbolt/switch.c | 5 +++++ drivers/thunderbolt/tb.h | 1 + drivers/thunderbolt/tb_regs.h | 1 + drivers/thunderbolt/usb4.c | 19 +++++++++++++++++++ 4 files changed, 26 insertions(+) -- 2.34.1