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Fri, 14 Nov 2025 08:17:29 -0800 From: Jon Hunter To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding CC: , , "Prathamesh Shete" , Shardar Mohammed , "Jon Hunter" Subject: [PATCH 2/2] soc/tegra: pmc: don't fail if "aotag" is not present Date: Fri, 14 Nov 2025 16:17:11 +0000 Message-ID: <20251114161711.2655355-2-jonathanh@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251114161711.2655355-1-jonathanh@nvidia.com> References: <20251114161711.2655355-1-jonathanh@nvidia.com> Precedence: bulk X-Mailing-List: devicetree@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-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A0FF:EE_|SA3PR12MB7859:EE_ X-MS-Office365-Filtering-Correlation-Id: 961cdd51-8f05-495a-0096-08de23995f89 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|36860700013|82310400026; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Nov 2025 16:17:57.0304 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 961cdd51-8f05-495a-0096-08de23995f89 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: BL02EPF0001A0FF.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA3PR12MB7859 From: Prathamesh Shete The "aotog" is an optional aperture, so if that aperture is not defined for a given device, then initialise the 'aotag' pointer to NULL instead of returning an error. Note that the PMC driver will not use 'aotag' pointer if initialised to NULL. Co-developed-by: Shardar Mohammed Signed-off-by: Shardar Mohammed Signed-off-by: Prathamesh Shete Signed-off-by: Jon Hunter --- drivers/soc/tegra/pmc.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 034a2a535a1e..d8c8894a8f38 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -2897,9 +2897,16 @@ static int tegra_pmc_probe(struct platform_device *pdev) if (IS_ERR(pmc->wake)) return PTR_ERR(pmc->wake); - pmc->aotag = devm_platform_ioremap_resource_byname(pdev, "aotag"); - if (IS_ERR(pmc->aotag)) - return PTR_ERR(pmc->aotag); + /* "aotag" is an optional aperture */ + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "aotag"); + if (res) { + pmc->aotag = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pmc->aotag)) + return PTR_ERR(pmc->aotag); + } else { + pmc->aotag = NULL; + } /* "scratch" is an optional aperture */ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, -- 2.43.0