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Tue, 6 May 2025 21:43:29 -0700 From: Robert Lin To: , , , , CC: , , , , , , robelin Subject: [PATCH v8 0/3] clocksource: fix Tegra234 SoC Watchdog Timer. Date: Wed, 7 May 2025 12:43:08 +0800 Message-ID: <20250507044311.3751033-1-robelin@nvidia.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-watchdog@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: rnnvmail202.nvidia.com (10.129.68.7) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099D9:EE_|CYYPR12MB8890:EE_ X-MS-Office365-Filtering-Correlation-Id: c29f3cd2-d0d8-40a0-8a82-08dd8d21c036 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|82310400026|36860700013|376014|1800799024; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE; SFS:(13230040)(82310400026)(36860700013)(376014)(1800799024); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 May 2025 04:43:45.3251 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c29f3cd2-d0d8-40a0-8a82-08dd8d21c036 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: DS3PEPF000099D9.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYYPR12MB8890 From: robelin This set of patches includes a fix for watchdog for it may not bark due to self-pinging and adds WDIOC_GETTIMELEFT support. --- V8: - Change WARN_ON() to WARN_ON_ONCE() to not spew too many message - Use pre-exist DIV_ROUND_CLOSEST_ULL for the same math operation V7: - Fix formatting - Consider overflow and warn if happens V6: - Fix timeleft value addition using unmatched time unit - Use u64 type to maintain the microseconds value in case of overflow V5: - Print warning message if get unexpected value from the register V4: - Improve the precision of timeleft value - Fix the unused variable warning V3: - Improve comment description - Refactor to fit codeline within 80 columns - Remove unused if(0) blocks V2: - Fix a compilation error, a warning and updates copyright -- Pohsun Su (2): clocksource/drivers/timer-tegra186: add WDIOC_GETTIMELEFT support clocksource/drivers/timer-tegra186: fix watchdog self-pinging robelin (1): clocksource/drivers/timer-tegra186: Remove unused bits drivers/clocksource/timer-tegra186.c | 100 +++++++++++++++++---------- 1 file changed, 63 insertions(+), 37 deletions(-)