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Tue, 6 Sep 2022 06:51:22 -0700 From: Petlozu Pravareshwar To: , , , , , , , , , CC: , Manish Bhardwaj Subject: [PATCH] soc/tegra: pmc: Check device node status property Date: Tue, 6 Sep 2022 13:51:17 +0000 Message-ID: <20220906135117.341529-1-petlozup@nvidia.com> X-Mailer: git-send-email 2.17.1 X-NVConfidentiality: public MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 5d35beff-be06-49ef-9132-08da900ee372 X-MS-TrafficTypeDiagnostic: MW3PR12MB4377: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:12.22.5.236;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(13230016)(4636009)(376002)(396003)(136003)(39860400002)(346002)(40470700004)(36840700001)(46966006)(54906003)(70206006)(478600001)(110136005)(2906002)(316002)(70586007)(36756003)(356005)(81166007)(921005)(86362001)(82740400003)(36860700001)(2616005)(1076003)(107886003)(7696005)(26005)(6666004)(336012)(4326008)(186003)(5660300002)(8676002)(41300700001)(82310400005)(40460700003)(83380400001)(426003)(40480700001)(47076005)(4744005)(8936002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Sep 2022 13:51:24.4974 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5d35beff-be06-49ef-9132-08da900ee372 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.236];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT107.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW3PR12MB4377 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In early_initcall, check if PMC device is available for use and avoid accessing PMC resources if the device node status property is set to disabled. Signed-off-by: Manish Bhardwaj Signed-off-by: Petlozu Pravareshwar --- drivers/soc/tegra/pmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 6a86961477e8..8c7b46ac6ad6 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -4295,7 +4295,7 @@ static int __init tegra_pmc_early_init(void) return -ENXIO; } =20 - if (np) { + if (of_device_is_available(np)) { pmc->soc =3D match->data; =20 if (pmc->soc->maybe_tz_only) --=20 2.17.1