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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , , , , , Subject: [PATCH RESEND] wifi: mt76: mt7921e: Set memory space enable in PCI_COMMAND if unset Date: Wed, 29 Mar 2023 14:57:58 -0500 Message-ID: <20230329195758.7384-1-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: 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: BN8NAM11FT114:EE_|CY8PR12MB7415:EE_ X-MS-Office365-Filtering-Correlation-Id: 410c2fd0-d708-465c-1a83-08db308ff000 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:(13230028)(4636009)(346002)(39860400002)(396003)(376002)(136003)(451199021)(40470700004)(46966006)(36840700001)(8936002)(47076005)(2906002)(336012)(83380400001)(426003)(2616005)(41300700001)(86362001)(36860700001)(36756003)(40460700003)(82740400003)(5660300002)(81166007)(356005)(40480700001)(966005)(478600001)(7696005)(8676002)(54906003)(70206006)(70586007)(4326008)(7416002)(16526019)(44832011)(6666004)(186003)(82310400005)(1076003)(26005)(316002)(110136005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Mar 2023 19:58:16.7583 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 410c2fd0-d708-465c-1a83-08db308ff000 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: BN8NAM11FT114.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7415 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230329_125823_772638_6FE0E433 X-CRM114-Status: GOOD ( 12.38 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=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 Acked-by: Sean Wang --- Original patch was submitted ~3 weeks ago with no comments. Link: https://lore.kernel.org/all/20230310170002.200-1-mario.limonciello@amd.com/ --- 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 cb72ded37256..aa1a427b16c2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -263,6 +263,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev, struct mt76_dev *mdev; u8 features; int ret; + u16 cmd; ret = pcim_enable_device(pdev); if (ret) @@ -272,6 +273,11 @@ 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);