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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , , , , , Subject: [PATCH] wifi: mt76: mt7921e: Set memory space enable in PCI_COMMAND if unset Date: Fri, 10 Mar 2023 11:00:02 -0600 Message-ID: <20230310170002.200-1-mario.limonciello@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00010207:EE_|DS0PR12MB7629:EE_ X-MS-Office365-Filtering-Correlation-Id: e78a3a8c-93cd-4e33-2cc0-08db2188ea3d 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:(13230025)(4636009)(396003)(376002)(136003)(346002)(39860400002)(451199018)(36840700001)(40470700004)(46966006)(2906002)(81166007)(82740400003)(83380400001)(36756003)(40460700003)(7416002)(5660300002)(44832011)(70206006)(70586007)(40480700001)(8936002)(356005)(8676002)(4326008)(6916009)(316002)(54906003)(41300700001)(86362001)(36860700001)(7696005)(478600001)(426003)(82310400005)(47076005)(2616005)(336012)(186003)(1076003)(16526019)(6666004)(26005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Mar 2023 17:00:13.1734 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e78a3a8c-93cd-4e33-2cc0-08db2188ea3d 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: BL02EPF00010207.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7629 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230310_090023_834957_3F75E3B5 X-CRM114-Status: GOOD ( 11.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When the BIOS has been configured for Fast Boot, systems with mt7921e have non-functional wifi. Turning on Fast boot caused both bus master enable and memory space enable bits in PCI_COMMAND not to get configured. The mt7921 driver already sets bus master enable, but explicitly check and set memory access enable as well to fix this problem. Tested-by: Anson Tsao Signed-off-by: Mario Limonciello --- drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c index 8a53d8f286db..24a2aafa6e2a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -256,6 +256,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev, struct mt7921_dev *dev; struct mt76_dev *mdev; int ret; + u16 cmd; ret = pcim_enable_device(pdev); if (ret) @@ -265,6 +266,11 @@ static int mt7921_pci_probe(struct pci_dev *pdev, if (ret) return ret; + pci_read_config_word(pdev, PCI_COMMAND, &cmd); + if (!(cmd & PCI_COMMAND_MEMORY)) { + cmd |= PCI_COMMAND_MEMORY; + pci_write_config_word(pdev, PCI_COMMAND, cmd); + } pci_set_master(pdev); ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);