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Mon, 23 Feb 2026 10:42:44 -0800 From: Manikanta Maddireddy To: , , , , , , , , , , , , , , , , , , <18255117159@163.com> CC: , , , Manikanta Maddireddy Subject: [PATCH v6 05/13] PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select" Date: Tue, 24 Feb 2026 00:11:43 +0530 Message-ID: <20260223184151.3083221-6-mmaddireddy@nvidia.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260223184151.3083221-1-mmaddireddy@nvidia.com> References: <20260223184151.3083221-1-mmaddireddy@nvidia.com> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: rnnvmail201.nvidia.com (10.129.68.8) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN1PEPF0000ECD4:EE_|SJ2PR12MB7894:EE_ X-MS-Office365-Filtering-Correlation-Id: cb5a94b1-01b4-4369-a16f-08de730b6c60 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|82310400026|7416014|36860700013|921020; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: eWeVGgmejOJjzw/toUh4ndz496ek9uwoILv2HB8Z4RiYbs/4/IFvURremCrzJIp9jbMSAljik+D4EczcSfIB4ihcFTvDfgjMKuDrMRMlV3XzAiMRCNSN6Te3lrjA6Iyiiy+nmkC44Yi24pjho+wSfkOcnzio1iiNxkCfsXOXPBcnLf7aVe8tj72xIY12a/qydHdk6z1O0QjcuoaY7uSY06XyOAZmdRkBlkNQstKsLSSikGfTdkZnpIQOkmsl/FupKaZ5wOeXhoXXtg76YxLfk9KYCXwUjaN0rg+Ic2CgwjgpvkPSUDlQ505vbGc97NkUmlX5SUSTaXj4j6FB/bwbTqTZL/dY3OL0WI/I+0aBFfKM/mnFpL7G8s0rTwzOtZ9sl7mz0pxm13VfD/1nuS3TqS1X4+PUke4VEudPQMMnkxDPjF9NTGUpti2SmcKu7rxI X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Feb 2026 18:43:23.1259 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cb5a94b1-01b4-4369-a16f-08de730b6c60 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000ECD4.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB7894 From: Vidya Sagar The GPIO DT property "nvidia,refclk-select" to select the PCIe reference clock is optional. Use devm_gpiod_get_optional() to get it. Fixes: c57247f940e8 ("PCI: tegra: Add support for PCIe endpoint mode in Tegra194") Signed-off-by: Vidya Sagar Signed-off-by: Manikanta Maddireddy --- Changes V5 -> V6: None Changes V4 -> V5: Added Fixes tag Changes V1 -> V4: None drivers/pci/controller/dwc/pcie-tegra194.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index 9455456028bc..8f69c5c5a099 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1170,9 +1170,9 @@ static int tegra_pcie_dw_parse_dt(struct tegra_pcie_dw *pcie) return err; } - pcie->pex_refclk_sel_gpiod = devm_gpiod_get(pcie->dev, - "nvidia,refclk-select", - GPIOD_OUT_HIGH); + pcie->pex_refclk_sel_gpiod = devm_gpiod_get_optional(pcie->dev, + "nvidia,refclk-select", + GPIOD_OUT_HIGH); if (IS_ERR(pcie->pex_refclk_sel_gpiod)) { int err = PTR_ERR(pcie->pex_refclk_sel_gpiod); const char *level = KERN_ERR; -- 2.34.1