Changes in Makefile

550c3bcdda0e9e3b3258b2fa9da040a96db058fb - watchdog: Remove AMD Elan SC520 processor watchdog driver

Tue, 05 May 2026 18:23:43 +0200

watchdog: Remove AMD Elan SC520 processor watchdog driverAMD Elan support was removed from the upstream kernel with commit8b793a92d862 ("x86/cpu: Remove M486/M486SX/ELAN support"). Itswatchdog driver can no longer be enabled except for test builds.Remove it.Signed-off-by: Guenter Roeck List of files: /linux/drivers/watchdog/Makefile

e4e0848ad046da9304e0656a71f74ddfbb316e98 - watchdog: atcwdt200: Add driver for Andes ATCWDT200

Thu, 15 Jan 2026 09:14:43 +0100

watchdog: atcwdt200: Add driver for Andes ATCWDT200Add support for the Andes ATCWDT200 watchdog timer. The driver implementsprogrammable reset and interrupt timers, and includes automatic detectionof the supported IntTime bit-width.Integrated with the Linux watchdog framework, it supports basic operationsincluding start, stop, ping, timeout configuration, and system reset viathe restart handler.Signed-off-by: CL Wang Link: https://lore.kernel.org/r/20260115081444.2452357-3-cl634@andestech.comSigned-off-by: Guenter Roeck List of files: /linux/drivers/watchdog/Makefile

ca316e145c35d59bf1c0b48ff4e38091e19b80a8 - watchdog: Add driver for Gunyah Watchdog

Wed, 11 Mar 2026 06:46:31 +0100

watchdog: Add driver for Gunyah WatchdogOn Qualcomm SoCs running under the Gunyah hypervisor, access to watchdogthrough MMIO is not available on all platforms. Depending on thehypervisor configuration, the watchdog is either fully emulated orexposed via ARM's SMC Calling Conventions (SMCCC) through the VendorSpecific Hypervisor Service Calls space.Add driver to support the SMC-based watchdog provided by the GunyahHypervisor. Device registration is done in the QCOM SCM driver afterchecks to restrict the watchdog initialization to Qualcomm devicesrunning under Gunyah.Gunyah watchdog is not a hardware but an SMC-based vendor-specifichypervisor interface provided by the Gunyah hypervisor. The designinvolving QCOM SCM driver for registering the platform device has beendevised to avoid adding non-hardware nodes to devicetree.Tested-by: Shivendra Pratap Tested-by: Neil Armstrong Tested-by: Mukesh Ojha Reviewed-by: Guenter Roeck Reviewed-by: Dmitry Baryshkov Signed-off-by: Hrishabh Rajput Signed-off-by: Pavankumar Kondeti Link: https://lore.kernel.org/r/20260311-gunyah_watchdog-v8-2-4c1c0689de22@oss.qualcomm.comSigned-off-by: Guenter Roeck List of files: /linux/drivers/watchdog/Makefile

151d4c1b2fbf7d9604a5f4de1bcb80a53a9ead1c - watchdog: remove driver for integrated WDT of ZFx86 486-based SoC

Tue, 28 Apr 2026 03:48:02 +0200

watchdog: remove driver for integrated WDT of ZFx86 486-based SoCThe machzwd driver supports the integrated watchdog of the ZF MicroZFx86 SoC, which contains a 486-compatible core [1]. Since 486support was removed in commit 8b793a92d862 ("x86/cpu: RemoveM486/M486SX/ELAN support"), the driver is no longer useful, Remove it.[1] https://www.zfmicro.com/zfx86.htmlSigned-off-by: Ethan Nelson-Moore Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20260428014806.35400-1-enelsonmoore@gmail.comSigned-off-by: Guenter Roeck List of files: /linux/drivers/watchdog/Makefile

0bf75b9c8a0eb1ef46ce85a393dd27ae801fc207 - watchdog: iTCO: Drop vendor support

Tue, 18 Nov 2025 20:29:58 +0100

watchdog: iTCO: Drop vendor supportiTCO vendor support was introduced in 2006 to support SuperMicro boardswith Pentium 3 CPUs. It was extended in 2009 to support motherbordswith broken BIOS (specifically Intel DG33TL). The code is long sinceobsolete, so let's drop support for it.Signed-off-by: Guenter Roeck Reviewed-by: Wim Van Sebroeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

babe81b06158da7e845d19fae0a9205baf2b211d - watchdog: renesas_wwdt: add driver

Fri, 17 Oct 2025 12:15:49 +0200

watchdog: renesas_wwdt: add driverThis driver adds support for the Renesas Window Watchdog Timer (WWDT).Because it can only be setup once after boot and we cannot know if thisalready happened in early boot stages, it is mandated that the firmwareconfigures the watchdog. Linux then adapts according to the givensetup. Note that this watchdog only reports an overflow to the ErrorControl Module (ECM) and does not reset the SoC on its own.Signed-off-by: Wolfram Sang Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

f9d737a7d84ff4c1df4244361e66ddda400678dc - watchdog: Add Nuvoton NCT6694 WDT support

Fri, 12 Sep 2025 11:19:50 +0200

watchdog: Add Nuvoton NCT6694 WDT supportThis driver supports Watchdog timer functionality for NCT6694 MFDdevice based on USB interface.Acked-by: Guenter Roeck Signed-off-by: Ming Yu Link: https://lore.kernel.org/r/20250912091952.1169369-6-a0282524688@gmail.comSigned-off-by: Lee Jones List of files: /linux/drivers/watchdog/Makefile

535d1784d8a96dce79023ac5081de1aa8669388a - watchdog: Add driver for Intel OC WDT

Mon, 17 Mar 2025 11:55:06 +0100

watchdog: Add driver for Intel OC WDTAdd a driver for the Intel Over-Clocking Watchdog found in IntelPlatform Controller (PCH) chipsets. This watchdog is controlledvia a simple single-register interface and would otherwise bestandard except for the presence of a LOCK bit that can only beset once per power cycle, needing extra handling around it.Signed-off-by: Diogo Ivo Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20250317-ivo-intel_oc_wdt-v3-1-32c396f4eefd@siemens.comSigned-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

bd3f54ec559b554671e5a683e05794abe3a609df - watchdog: Add the Watchdog Timer for the NXP S32 platform

Thu, 10 Apr 2025 10:26:14 +0200

watchdog: Add the Watchdog Timer for the NXP S32 platformThe S32 platform has several Watchdog Timer available and tied with aCPU. The SWT0 is the only one which directly asserts the reset line,other SWT require an external setup to configure the reset behaviorwhich is not part of this change.As a side note, in the NXP documentation, the s32g2 and s32g3reference manuals refer the watchdog as the 'Software Timer Watchdog'where the name can be misleading as it is actually a hardwarewatchdog.The maximum watchdog timeout value depends on the clock feeding theSWT counter which is 32bits wide. On the s32g274-rb2, the clock has arate of 51MHz which result on 83 seconds maximum timeout.The timeout can be specified via the device tree with the usualexisting bindings 'timeout-sec' or via the module param timeout.The watchdog can be loaded with the 'nowayout' option, preventing thewatchdog to be stopped.The watchdog can be started at boot time with the 'early-enable'option, thus letting the watchdog framework to service the watchdogcounter.The watchdog support the magic character to stop when the userspacereleases the device.Cc: Ghennadi Procopciuc Cc: Thomas Fossati Signed-off-by: Daniel Lezcano Tested-by: Alexandru-Catalin Ionita Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20250410082616.1855860-3-daniel.lezcano@linaro.orgSigned-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

c284153a2c5537db4fec51ac850c17d2eb1ffcfe - watchdog: lenovo_se30_wdt: Watchdog driver for Lenovo SE30 platform

Fri, 31 Jan 2025 21:48:55 +0100

watchdog: lenovo_se30_wdt: Watchdog driver for Lenovo SE30 platformWatchdog driver implementation for Lenovo SE30 platform.Signed-off-by: Mark Pearson Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20250131204855.1827-1-mpearson-lenovo@squebb.caSigned-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

42d52acfb10cfc53139a1139e1c401a52c3f924c - Merge tag 'linux-watchdog-6.13-rc1' of git://www.linux-watchdog.org/linux-watchdog

Thu, 05 Dec 2024 19:03:43 +0100

Merge tag 'linux-watchdog-6.13-rc1' of git://www.linux-watchdog.org/linux-watchdogPull watchdog updates from Wim Van Sebroeck: - Add support for exynosautov920 SoC - Add support for Airoha EN7851 watchdog - Add support for MT6735 TOPRGU/WDT - Delete the cpu5wdt driver - Always print when registering watchdog fails - Several other small fixes and improvements* tag 'linux-watchdog-6.13-rc1' of git://www.linux-watchdog.org/linux-watchdog: (36 commits) watchdog: rti: of: honor timeout-sec property watchdog: s3c2410_wdt: add support for exynosautov920 SoC dt-bindings: watchdog: Document ExynosAutoV920 watchdog bindings watchdog: mediatek: Add support for MT6735 TOPRGU/WDT watchdog: mediatek: Make sure system reset gets asserted in mtk_wdt_restart() dt-bindings: watchdog: fsl-imx-wdt: Add missing 'big-endian' property dt-bindings: watchdog: Document Qualcomm QCS8300 docs: ABI: Fix spelling mistake in pretimeout_avaialable_governors Revert "watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU regs" watchdog: rzg2l_wdt: Power on the watchdog domain in the restart handler watchdog: Switch back to struct platform_driver::remove() watchdog: it87_wdt: add PWRGD enable quirk for Qotom QCML04 watchdog: da9063: Remove __maybe_unused notations watchdog: da9063: Do not use a global variable watchdog: Delete the cpu5wdt driver watchdog: Add support for Airoha EN7851 watchdog dt-bindings: watchdog: airoha: document watchdog for Airoha EN7581 watchdog: sl28cpld_wdt: don't print out if registering watchdog fails watchdog: rza_wdt: don't print out if registering watchdog fails watchdog: rti_wdt: don't print out if registering watchdog fails ... List of files: /linux/drivers/watchdog/Makefile

3a6a399cfbb72a96d61597c519a4076d4ab8669f - watchdog: Delete the cpu5wdt driver

Tue, 22 Oct 2024 11:47:31 +0200

watchdog: Delete the cpu5wdt driverThis driver has a number of issues (accesses arbitrary I/O portswithout identifying the hardware, doesn't document what hardware itsupports, suspiciously inconsistent locking model, doesn't implementWDIOC_SETTIMEOUT, potential integer overflow...)The driver was added in 2003 and there's no evidence that it has anyrecent user, all changes seem to be tree-wide, subsystem-wide, or theresult of static code analysis. So I believe we should simply dropthis legacy piece of code.Signed-off-by: Jean Delvare Message-ID: <20241011170710.484a257a@endymion.delvare>Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20241022114731.31f69c94@endymion.delvareSigned-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

3cf67f3769b8227ca75ca7102180a2e270ee01aa - watchdog: Add support for Airoha EN7851 watchdog

Fri, 11 Oct 2024 12:43:53 +0200

watchdog: Add support for Airoha EN7851 watchdogAdd support for Airoha EN7851 watchdog. This is a very basic watchdogwith no pretimeout support, max timeout is 28 seconds and it ticks basedon half the SoC BUS clock.Signed-off-by: Christian Marangi Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20241011104411.28659-2-ansuelsmth@gmail.comSigned-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

6f264047869e9683520ff8f7c235c07c1ca989d6 - watchdog: Congatec Board Controller watchdog timer driver

Tue, 01 Oct 2024 13:53:30 +0200

watchdog: Congatec Board Controller watchdog timer driverAdd watchdog timer support for the Congatec Board Controller.Acked-by: Guenter Roeck Signed-off-by: Thomas Richard Link: https://lore.kernel.org/r/20241001-congatec-board-controller-v3-4-39ceceed5c47@bootlin.comSigned-off-by: Lee Jones List of files: /linux/drivers/watchdog/Makefile

f6febd0a30b6e299a08076116256e3b36c24eada - watchdog: Add Watchdog Timer driver for RZ/V2H(P)

Thu, 29 Aug 2024 21:38:31 +0200

watchdog: Add Watchdog Timer driver for RZ/V2H(P)Add Watchdog Timer driver for RZ/V2H(P) SoC.Signed-off-by: Lad Prabhakar Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240829193831.80768-3-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

09dad69757b6600f6de5b547323e81235fc61d6c - watchdog: ROHM BD96801 PMIC WDG driver

Thu, 27 Jun 2024 09:43:55 +0200

watchdog: ROHM BD96801 PMIC WDG driverIntroduce driver for WDG block on ROHM BD96801 scalable PMIC.This driver only supports watchdog with I2C feeding and delayedresponse detection. Whether the watchdog toggles PRSTB pin orjust causes an interrupt can be configured via device-tree.The BD96801 PMIC HW supports also window watchdog (too earlyfeeding detection) and Q&A mode. These are not supported bythis driver.Signed-off-by: Matti Vaittinen Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/bb3a49d606e793a61b0c033170ff2a9f30f3c2a5.1719473802.git.mazziesaccount@gmail.comSigned-off-by: Lee Jones List of files: /linux/drivers/watchdog/Makefile

1f6602c8ed1eccac4fa83e338d02aafe3a0e2c0a - watchdog: lenovo_se10_wdt: Watchdog driver for Lenovo SE10 platform

Fri, 15 Mar 2024 20:52:12 +0100

watchdog: lenovo_se10_wdt: Watchdog driver for Lenovo SE10 platformWatchdog driver implementation for Lenovo SE10 platform.Signed-off-by: Mark Pearson Signed-off-by: David Ober Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240315195227.91282-1-mpearson-lenovo@squebb.caSigned-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile

843dac4d3687f7628ba4f76e1481ee3838b27a35 - watchdog: Add ChromeOS EC-based watchdog driver

Fri, 26 Jan 2024 10:57:20 +0100

watchdog: Add ChromeOS EC-based watchdog driverEmbedded Controller (EC) present on Chromebook devicescan be used as a watchdog.Implement a driver to support it.Signed-off-by: Lukasz Majczak Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240126095721.782782-3-lma@chromium.orgSigned-off-by: Lee Jones List of files: /linux/drivers/watchdog/Makefile

1bc6e01372883354ffcd77714d8dc24c7fa4a2ed - watchdog: ar7_wdt: remove driver to prepare for platform removal

Fri, 22 Sep 2023 08:15:25 +0200

watchdog: ar7_wdt: remove driver to prepare for platform removalAR7 is going to be removed from the Kernel, so remove its watchdogsupport. This allows us to remove the platform because this driverincludes a platform specific header.Signed-off-by: Wolfram Sang Acked-by: Florian Fainelli Acked-by: Guenter Roeck Signed-off-by: Thomas Bogendoerfer List of files: /linux/drivers/watchdog/Makefile

ef9e7fe2c890f7609b5a667eba282f900434e58d - Watchdog: Add marvell GTI watchdog driver

Thu, 03 Aug 2023 05:25:23 +0200

Watchdog: Add marvell GTI watchdog driverThis patch add support for Marvell GTI watchdog. Global timerunit (GTI) support hardware watchdog timer. Software programswatchdog timer to generate interrupt on first timeout, secondtimeout is configured to be ignored and system reboots onthird timeout.Signed-off-by: Bharat Bhushan Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20230803032523.6242-2-bbhushan2@marvell.com[groeck: MODULE_LICENSE GPL v2 -> GPL since that is sufficient]Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck List of files: /linux/drivers/watchdog/Makefile