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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C Received: from SATLEXMB03.amd.com (165.204.84.17) by MN1PEPF0000ECD8.mail.protection.outlook.com (10.167.242.137) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7025.12 via Frontend Transport; Tue, 21 Nov 2023 18:21:29 +0000 Received: from SATLEXMB04.amd.com (10.181.40.145) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34; Tue, 21 Nov 2023 12:21:28 -0600 Received: from xhdradheys41.xilinx.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server id 15.1.2507.34 via Frontend Transport; Tue, 21 Nov 2023 12:21:26 -0600 From: Radhey Shyam Pandey To: , , CC: , , , , Piyush Mehta , Radhey Shyam Pandey Subject: [PATCH v2] usb: dwc3: xilinx: improve error handling for PM APIs Date: Tue, 21 Nov 2023 23:51:18 +0530 Message-ID: <1700590878-124335-1-git-send-email-radhey.shyam.pandey@amd.com> X-Mailer: git-send-email 2.1.1 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN1PEPF0000ECD8:EE_|DM6PR12MB4108:EE_ X-MS-Office365-Filtering-Correlation-Id: 988f77f0-bec4-4a6d-ddf5-08dbeabeae8d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Nov 2023 18:21:29.5807 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 988f77f0-bec4-4a6d-ddf5-08dbeabeae8d X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000ECD8.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4108 X-Spam-Level: * From: Piyush Mehta Improve error handling for PM APIs in the dwc3_xlnx_probe function by introducing devm_pm_runtime_enable and error label. Removed unnecessary API pm_runtime_disable call in dwc3_xlnx_remove. Signed-off-by: Piyush Mehta Signed-off-by: Radhey Shyam Pandey --- Changes for v2: - Remove pm_runtime_enable() call. --- drivers/usb/dwc3/dwc3-xilinx.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c index 5b7e92f476de..6095f4dee6ce 100644 --- a/drivers/usb/dwc3/dwc3-xilinx.c +++ b/drivers/usb/dwc3/dwc3-xilinx.c @@ -293,11 +293,15 @@ static int dwc3_xlnx_probe(struct platform_device *pdev) goto err_clk_put; pm_runtime_set_active(dev); - pm_runtime_enable(dev); + ret = devm_pm_runtime_enable(dev); + if (ret < 0) + goto err_pm_set_suspended; + pm_suspend_ignore_children(dev, false); - pm_runtime_get_sync(dev); + return pm_runtime_resume_and_get(dev); - return 0; +err_pm_set_suspended: + pm_runtime_set_suspended(dev); err_clk_put: clk_bulk_disable_unprepare(priv_data->num_clocks, priv_data->clks); @@ -315,7 +319,6 @@ static void dwc3_xlnx_remove(struct platform_device *pdev) clk_bulk_disable_unprepare(priv_data->num_clocks, priv_data->clks); priv_data->num_clocks = 0; - pm_runtime_disable(dev); pm_runtime_put_noidle(dev); pm_runtime_set_suspended(dev); }