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Wed, 26 Oct 2022 00:06:20 -0700 From: Prathamesh Shete To: , , , , , , CC: , , , Manish Bhardwaj Subject: [PATCH v2] gpio: tegra186: Check PMC driver status before any request Date: Wed, 26 Oct 2022 12:36:14 +0530 Message-ID: <20221026070614.24446-1-pshete@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT066:EE_|CH0PR12MB5041:EE_ X-MS-Office365-Filtering-Correlation-Id: 1fafa4df-d1c0-42aa-0ec3-08dab7209ed0 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:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230022)(4636009)(396003)(39860400002)(346002)(136003)(376002)(451199015)(36840700001)(46966006)(40470700004)(6666004)(41300700001)(107886003)(7696005)(110136005)(82740400003)(36756003)(5660300002)(40460700003)(54906003)(8676002)(478600001)(356005)(40480700001)(7636003)(4326008)(8936002)(316002)(70586007)(70206006)(86362001)(83380400001)(2616005)(82310400005)(2906002)(26005)(47076005)(426003)(186003)(1076003)(336012)(36860700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Oct 2022 07:06:35.6055 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1fafa4df-d1c0-42aa-0ec3-08dab7209ed0 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT066.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR12MB5041 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This patch fixes the issue where even if PMC driver status is disabled still we are trying to look up for the IRQ domain that PMC driver would've registered if it had been enabled. Signed-off-by: Manish Bhardwaj Signed-off-by: Prathamesh Shete Acked-by: Thierry Reding Reviewed-by: Linus Walleij --- drivers/gpio/gpio-tegra186.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c index 54d9fa7da9c1..b99756037ed4 100644 --- a/drivers/gpio/gpio-tegra186.c +++ b/drivers/gpio/gpio-tegra186.c @@ -896,11 +896,15 @@ static int tegra186_gpio_probe(struct platform_device= *pdev) =20 np =3D of_find_matching_node(NULL, tegra186_pmc_of_match); if (np) { - irq->parent_domain =3D irq_find_host(np); - of_node_put(np); - - if (!irq->parent_domain) - return -EPROBE_DEFER; + if (of_device_is_available(np)) { + irq->parent_domain =3D irq_find_host(np); + of_node_put(np); + + if (!irq->parent_domain) + return -EPROBE_DEFER; + } else { + of_node_put(np); + } } =20 irq->map =3D devm_kcalloc(&pdev->dev, gpio->gpio.ngpio, --=20 2.17.1