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Wed, 7 Oct 2026 17:14:05 +0200 From: Antonio Borneo To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , , , , CC: Antonio Borneo , Amelie Delaunay Subject: [PATCH 0/3] ARM/arm64: dts: stm32: align watchdog DT support accross STM32MP15 platforms Date: Wed, 7 Oct 2026 17:13:55 +0200 Message-ID: <20261007151358.1166329-1-antonio.borneo@foss.st.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: ENXCAS1NODE2.st.com (10.75.128.138) To STKDAG1NODE2.st.com (10.75.128.133) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MI3PEPF00008490:EE_|AS2PR10MB6926:EE_ X-MS-Office365-Filtering-Correlation-Id: f95c20ac-5f1f-43ac-f633-08df2485d642 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|82310400026|376014|1800799024|36860700016|56012099006|6133799003|18002099003|10067099003|11063799006; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: oY9WKrQjSu8u+ZuZq3mgz/97VohDbksZTsyA4jLT/8+DrimpGJNsTKQrA96vxSnLji5eCyfy0qz59uTnkmWrIeEa879b9lzGD6G1+Pwf7mo0L7mbet6/5wkyl6qafgQKtBJIQR+5v2IimrhMuXlKup/4zJmt134zOOB7WbecODiVOKGVupL6d7fqpVjq+zPL+fF0oBm1H5bO33dutvkQQMIYVAaM0z2GuMsODqRQ4JbxX8ibPnAO0baPxUhvdh1jInhr1LjmlRtP3i4YBZwaXb+fuOvd8TJbuLLYT5fJHykhowcldpFsqf7qWRvinjPcKbSjOGTSuNT2SiXn/akUXmPwdXlgdVVkD0W7TU1iaJxBliRX7O1LQNjge50rAZnqPpFBiD06K50REGR/BOiZQs2pUs03sb6Xi+NJ6WqZMBRE9cUNYCXVML0r18MOK4Xz X-OriginatorOrg: foss.st.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Oct 2026 15:15:35.3114 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f95c20ac-5f1f-43ac-f633-08df2485d642 X-MS-Exchange-CrossTenant-Id: 75e027c9-20d5-47d5-b82f-77d7cd041e8f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=75e027c9-20d5-47d5-b82f-77d7cd041e8f;Ip=[164.130.1.59];Helo=[smtpO365.st.com] X-MS-Exchange-CrossTenant-AuthSource: MI3PEPF00008490.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS2PR10MB6926 This series updates STM32MP watchdog DT descriptions to keep them aligned with the actual secure/non-secure watchdog integration used on each platform family. Two watchdog access models are used: - On ST STM32MP15 non-SCMI boards, IWDG1 is exposed as a non-secure watchdog. In that case Linux must register the watchdog device and keep it pinged once it has been started by the boot chain. - On ST SCMI-based STM32MP15 boards, the watchdog is handled through secure world services and exposed to Linux through the ARM SMC watchdog interface. Amelie Delaunay (2): ARM: dts: stm32: enable iwdg1 on STM32MP15 ST boards ARM: dts: stm32: enable ARM SMC watchdog on STM32MP15 SCMI boards Antonio Borneo (1): ARM: dts: stm32: move ARM SMC watchdog to STM32MP151 SoC arch/arm/boot/dts/st/stm32mp15-scmi.dtsi | 4 ++++ arch/arm/boot/dts/st/stm32mp151.dtsi | 15 +++++++++++++++ arch/arm/boot/dts/st/stm32mp157a-dk1-scmi.dts | 5 +++++ arch/arm/boot/dts/st/stm32mp157c-dk2-scmi.dts | 5 +++++ arch/arm/boot/dts/st/stm32mp157c-ed1-scmi.dts | 5 +++++ arch/arm/boot/dts/st/stm32mp157c-ed1.dts | 5 +++++ arch/arm/boot/dts/st/stm32mp157c-ev1-scmi.dts | 5 +++++ arch/arm/boot/dts/st/stm32mp157f-dk2-scmi.dtsi | 7 ------- arch/arm/boot/dts/st/stm32mp15xx-dkx.dtsi | 5 +++++ 9 files changed, 49 insertions(+), 7 deletions(-) base-commit: f831584128ac2a36fb4fa62fe106793d08c2dbf1 -- 2.34.1