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Wysocki" , Len Brown , Huang Rui , Mika Westerberg , , CC: , , , , , , "Perry Yuan" Subject: [PATCH] ACPI: bus: Fix osc_sb_cppc_not_supported check Date: Fri, 24 Jun 2022 07:59:40 -0400 Message-ID: <20220624115940.272422-1-Perry.Yuan@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-Office365-Filtering-Correlation-Id: fa57c60c-41d5-48ea-e2c3-08da55d91651 X-MS-TrafficTypeDiagnostic: MN2PR12MB4301:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: VxQBE16Y9oZtRQd84qX2uhaUYln6fEtLcDb/G6fr8vYLJqFIHF4UmLgumvwnqsD+gRn+/XZN2F0rBbSKbNQndC+cu5EGFrY/+GTMJ8/yZy9vm0AwrbHsu3FDpOBOJXxEqYw4zq7jjcSCL5ZTQ1Z3SPzVUNs4YypC5ILJ7F1050q6mNqTAvAwof+CpjtKSvG/g1p4Tdq9ZWP1M3PLNumSJuHSaXRwVzaqeRy0LokZouIx/yiqY4nzLZUNPoAbw+AeRDXybYZMx9AOUVR9HdGxrfuilKF1+b5p0+HQg1UoCQBNDz5WF0GQGH923ZkuykhuWNt5N3IbMDfQBc9L0Z+TCXDfkgGs0dYVI9E4vOLC3bhMzqLGPX107FiltimlMrrtO+Pt7/ak7fCQXnb+WFB2fFtCLmfTX2O6eGixqZOGy8R02nDv850ay64l3rymOym6JKg8Pv1sTMSN5ZkMjRIjtgfWoH8xK+HY6XIDPxrudWEwRtkTNQiGWalJXOnAAcQOcs4xKFPsuUP30CFVnQP3ZbqPM09G6R2MWkC/n/tgK9DEpv95vI4cLAxu88y7bJWdqAzDD1xvh2FVffoAot3zIwI+e+PlMVp+dyzGXQkVWLv2D1VoXU8l6BCSngT0w0UUdRoJTDH4a+PnzTVOlPKPR51aB89YpA7k3glKwIaDF2jWTis/hKuKGbaY+DQo23PJfor+tKor71ERCwAm9luGT9ve9bbDqGBnmXQlOZZ8iMlGqFDDR/7H+Pt+gaQqCdqp+piwAfenfhF26/AjcoSKhVjuC2szvLEHQnUITNMxzdzzzDKvlW4lChJMLZxexkTPGtQGgUlNiFy9eEjaJjO2Kw== 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)(376002)(39860400002)(396003)(346002)(136003)(40470700004)(46966006)(36840700001)(47076005)(336012)(356005)(4744005)(83380400001)(40480700001)(36860700001)(81166007)(426003)(316002)(40460700003)(110136005)(8936002)(54906003)(41300700001)(82310400005)(2906002)(70206006)(8676002)(70586007)(1076003)(2616005)(478600001)(7696005)(16526019)(82740400003)(36756003)(6666004)(5660300002)(186003)(86362001)(4326008)(26005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jun 2022 12:00:09.6138 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fa57c60c-41d5-48ea-e2c3-08da55d91651 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: DM6NAM11FT049.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4301 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org The patch fixs the osc_sb_cppc_not_supported variable checking Otherwise the cppc acpi driver will be failed to register causing AMD pstate driver failed to load when calling acpi_cpc_valid() Fixes: c42fa24b447("ACPI: bus: Avoid using CPPC if not supported by firmware") Signed-off-by: Perry Yuan --- drivers/acpi/bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 4d7c51a33b01..9731e4a1e338 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -359,7 +359,7 @@ static void acpi_bus_osc_negotiate_platform_control(void) } #ifdef CONFIG_ACPI_CPPC_LIB - osc_sb_cppc_not_supported = !(capbuf_ret[OSC_SUPPORT_DWORD] & + osc_sb_cppc_not_supported = !(capbuf_ret[OSC_SUPPORT_DWORD] && (OSC_SB_CPC_SUPPORT | OSC_SB_CPCV2_SUPPORT)); #endif