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[60.250.196.139]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2cf8f390dd2sm26071285ad.79.2026.07.22.23.08.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Jul 2026 23:08:22 -0700 (PDT) From: Zi-Yu Chen To: Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Jacky Huang , Shan-Chun Hung , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Zi-Yu Chen Subject: [PATCH 0/3] watchdog: ma35d1: Add support for MA35D1 Watchdog Date: Thu, 23 Jul 2026 14:07:51 +0800 Message-Id: <20260723060755.1596858-1-zychennvt@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This patch series introduces watchdog timer support for the Nuvoton MA35D1 SoC platform. The MA35D1 watchdog timer hardware provides a programmable countdown timer capable of triggering a system reset upon timeout expiration or generating an interrupt to wake up the system from low-power states. Key features supported in this driver: - Standard watchdog operations (start, stop, ping, set_timeout). - Boot status detection to identify watchdog reset events (WDIOF_CARDRESET). - Power management support including suspend/resume and wakeup functionality. Series breakdown: - Patch 1: Add DT binding documentation for Nuvoton MA35D1 watchdog. - Patch 2: Add the watchdog driver implementation for MA35D1. - Patch 3: Add the watchdog node in the MA35D1 SoC DeviceTree file. Testing: - Tested on the Nuvoton MA35D1 development board using standard watchdog test utilities (e.g., watchdog-test from tools/testing/selftests/watchdog). Zi-Yu Chen (3): dt-bindings: watchdog: Add MA35D1 Watchdog binding watchdog: Add Nuvoton MA35D1 watchdog driver support arm64: dts: nuvoton: Add WDT node for MA35D1 SoC .../bindings/watchdog/nuvoton,ma35d1-wdt.yaml | 55 +++ arch/arm64/boot/dts/nuvoton/ma35d1.dtsi | 7 + drivers/watchdog/Kconfig | 11 + drivers/watchdog/Makefile | 1 + drivers/watchdog/ma35d1_wdt.c | 357 ++++++++++++++++++ 5 files changed, 431 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/nuvoton,ma35d1-wdt.yaml create mode 100644 drivers/watchdog/ma35d1_wdt.c -- 2.34.1