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Date: Wed, 3 Aug 2022 23:29:54 -0500 Message-ID: <1659587394-115256-1-git-send-email-Sanju.Mehta@amd.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 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-Office365-Filtering-Correlation-Id: 41acd6a7-c05f-4e75-11ac-08da75d217b7 X-MS-TrafficTypeDiagnostic: BL1PR12MB5730:EE_ 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:(13230016)(4636009)(39860400002)(376002)(136003)(396003)(346002)(46966006)(36840700001)(40470700004)(83380400001)(70586007)(41300700001)(186003)(336012)(426003)(2616005)(70206006)(47076005)(16526019)(8936002)(2906002)(36860700001)(4326008)(8676002)(6666004)(36756003)(7696005)(356005)(81166007)(82310400005)(26005)(40460700003)(40480700001)(478600001)(82740400003)(86362001)(316002)(110136005)(54906003)(5660300002)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Aug 2022 04:30:42.7177 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 41acd6a7-c05f-4e75-11ac-08da75d217b7 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: BN8NAM11FT058.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5730 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Sanjay R Mehta If the boot firmware implements a connection manager of its own it may create a DP tunnel and will be handed off to Linux CM, but the DP out resource is not saved in the dp_resource list. This patch adds tunnelled DP out port to the dp_resource list once the DP tunnel is discovered. Signed-off-by: Sanjay R Mehta Signed-off-by: Basavaraj Natikar --- v3: make tb_dp_resource_available_discovered as static function. v2: Re-ordering the function declaration as per Greg's comment. --- drivers/thunderbolt/tb.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 9a3214f..53abce3 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -105,6 +105,21 @@ static void tb_remove_dp_resources(struct tb_switch *sw) } } +static void tb_dp_resource_available_discovered(struct tb *tb, struct tb_port *port) +{ + struct tb_cm *tcm = tb_priv(tb); + struct tb_port *p; + + list_for_each_entry(p, &tcm->dp_resources, list) { + if (p == port) + return; + } + + tb_port_dbg(port, "DP %s resource available discovered\n", + tb_port_is_dpin(port) ? "IN" : "OUT"); + list_add_tail(&port->list, &tcm->dp_resources); +} + static void tb_switch_discover_tunnels(struct tb_switch *sw, struct list_head *list, bool alloc_hopids) @@ -118,6 +133,7 @@ static void tb_switch_discover_tunnels(struct tb_switch *sw, switch (port->config.type) { case TB_TYPE_DP_HDMI_IN: tunnel = tb_tunnel_discover_dp(tb, port, alloc_hopids); + tb_dp_resource_available_discovered(tb, tunnel->dst_port); break; case TB_TYPE_PCIE_DOWN: