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Sun, 25 Jan 2026 23:45:50 -0800 From: Manikanta Maddireddy To: , , , , , , , , , , , , <18255117159@163.com> CC: , , , , "Manikanta Maddireddy" Subject: [PATCH V4 01/22] PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select" Date: Mon, 26 Jan 2026 13:14:58 +0530 Message-ID: <20260126074519.3426742-2-mmaddireddy@nvidia.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260126074519.3426742-1-mmaddireddy@nvidia.com> References: <20260126074519.3426742-1-mmaddireddy@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D8:EE_|BN7PPFB3F5C406F:EE_ X-MS-Office365-Filtering-Correlation-Id: 412ec696-fd9f-48c5-ae8c-08de5caef964 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|1800799024|82310400026|921020; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jan 2026 07:46:10.9970 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 412ec696-fd9f-48c5-ae8c-08de5caef964 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: CY4PEPF0000E9D8.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN7PPFB3F5C406F Content-Type: text/plain; charset="utf-8" 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. Signed-off-by: Vidya Sagar Signed-off-by: Manikanta Maddireddy --- V4: * None V3: * None V2: * 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/contr= oller/dwc/pcie-tegra194.c index 0ddeef70726d..f4a13ca2e742 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1163,9 +1163,9 @@ static int tegra_pcie_dw_parse_dt(struct tegra_pcie_d= w *pcie) return err; } =20 - pcie->pex_refclk_sel_gpiod =3D devm_gpiod_get(pcie->dev, - "nvidia,refclk-select", - GPIOD_OUT_HIGH); + pcie->pex_refclk_sel_gpiod =3D devm_gpiod_get_optional(pcie->dev, + "nvidia,refclk-select", + GPIOD_OUT_HIGH); if (IS_ERR(pcie->pex_refclk_sel_gpiod)) { int err =3D PTR_ERR(pcie->pex_refclk_sel_gpiod); const char *level =3D KERN_ERR; --=20 2.34.1