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2022-10-02watchdog: Exar/MaxLinear XR28V38x driverDavid Müller1-0/+1
Simple driver for the watchdog present in some Exar/MaxLinear UART chips. Please see https://www.maxlinear.com/product/interface/uarts/lpc-uarts/xr28v384 for more info. Signed-off-by: David Müller <d.mueller@elsoft.ch> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220914094605.93377-1-d.mueller@elsoft.ch Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-07-20watchdog/pseries-wdt: initial support for H_WATCHDOG-based watchdog timersScott Cheloha1-0/+1
PAPR v2.12 defines a new hypercall, H_WATCHDOG. The hypercall permits guest control of one or more virtual watchdog timers. The timers have millisecond granularity. The guest is terminated when a timer expires. This patch adds a watchdog driver for these timers, "pseries-wdt". pseries_wdt_probe() currently assumes the existence of only one platform device and always assigns it watchdogNumber 1. If we ever expose more than one timer to userspace we will need to devise a way to assign a distinct watchdogNumber to each platform device at device registration time. Signed-off-by: Scott Cheloha <cheloha@linux.ibm.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220713202335.1217647-5-cheloha@linux.ibm.com
2022-06-02Merge tag 'arm-late-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds1-0/+1
Pull more ARM SoC updates from Arnd Bergmann: "This is the second part of the general SoC updates, containing everything that did not make it in the initial pull request, or that came in as a bugfix later. - Devicetree updates for SoCFPGA, ASPEED, AT91 and Rockchip, including a new machine using an ASPEED BMC. - More DT fixes from Krzysztof Kozlowski across platforms - A new SoC platform for the GXP baseboard management controller, used in current server products from HPE" * tag 'arm-late-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (56 commits) ARM: configs: Enable more audio support for i.MX tee: optee: Pass a pointer to virt_addr_valid() arm64: dts: rockchip: rename Quartz64-A bluetooth gpios arm64: dts: rockchip: add clocks property to cru node rk3368 arm64: dts: rockchip: add clocks property to cru node rk3308 arm64: dts: rockchip: add clocks to rk356x cru ARM: dts: rockchip: add clocks property to cru node rk3228 ARM: dts: rockchip: add clocks property to cru node rk3036 ARM: dts: rockchip: add clocks property to cru node rk3066a/rk3188 ARM: dts: rockchip: add clocks property to cru node rk3288 ARM: dts: rockchip: Remove "amba" bus nodes from rv1108 ARM: dts: rockchip: add clocks property to cru node rv1108 arm64: dts: sprd: use new 'dma-channels' property ARM: dts: da850: use new 'dma-channels' property ARM: dts: pxa: use new 'dma-channels/requests' properties soc: ixp4xx/qmgr: Fix unused match warning ARM: ep93xx: Make ts72xx_register_flash() static ARM: configs: enable support for Kontron KSwitch D10 ep93xx: clock: Do not return the address of the freed memory arm64: dts: intel: add device tree for n6000 ...
2022-05-21watchdog: Add Renesas RZ/N1 Watchdog driverPhil Edworthy1-0/+1
This is a driver for the standard WDT on the RZ/N1 devices. This WDT has very limited timeout capabilities. However, it can reset the device. To do so, the corresponding bits in the SysCtrl RSTEN register need to be enabled. This is not done by this driver. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220427135531.708279-3-jjhiblot@traphandler.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-05-18watchdog: hpe-wdt: Introduce HPE GXP WatchdogNick Hawkins1-0/+1
Add support for the HPE GXP Watchdog. The GXP asic contains a full complement of timers one of which is the watchdog timer. The watchdog timer is 16 bit and has 10ms resolution. The watchdog is created as a child device of timer since the same register range is used. Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Guenter Roeck <linux@roeck-us.net>
2022-05-08watchdog: Add watchdog driver for Sunplus SP7021Xiantao Hu1-0/+1
Sunplus SP7021 requires watchdog timer support. Add watchdog driver to enable this. Signed-off-by: Xiantao Hu <xt.hu@cqplus1.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220324031805.61316-3-xt.hu@cqplus1.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-01-17Merge tag 'linux-watchdog-5.17-rc1' of git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-1/+3
Pull watchdog updates from Wim Van Sebroeck: - New device support: - Watchdog Timer driver for RZ/G2L - Realtek Otto watchdog timer - Apple SoC watchdog driver - Fintek F81966 - Remove BCM63XX_WDT after support for this SoC was added to BCM7038_WDT - Improvements of the BCM7038_WDT and s3c2410_wdt code - Several other fixes and improvements * tag 'linux-watchdog-5.17-rc1' of git://www.linux-watchdog.org/linux-watchdog: (38 commits) watchdog: msc313e: Check if the WDT was running at boot watchdog: Add Apple SoC watchdog driver dt-bindings: watchdog: Add SM6350 and SM8250 compatible watchdog: s3c2410: Fix getting the optional clock watchdog: s3c2410: Use platform_get_irq() to get the interrupt dt-bindings: watchdog: atmel: Add missing 'interrupts' property watchdog: mtk_wdt: use platform_get_irq_optional watchdog: Add Watchdog Timer driver for RZ/G2L dt-bindings: watchdog: renesas,wdt: Add support for RZ/G2L watchdog: da9063: Add hard dependency on I2C watchdog: Add Realtek Otto watchdog timer dt-bindings: watchdog: Realtek Otto WDT binding watchdog: s3c2410: Add Exynos850 support watchdog: da9063: use atomic safe i2c transfer in reset handler watchdog: davinci: Use div64_ul instead of do_div watchdog: Remove BCM63XX_WDT MIPS: BCM63XX: Provide platform data to watchdog device watchdog: bcm7038_wdt: Add platform device id for bcm63xx-wdt watchdog: Allow building BCM7038_WDT for BCM63XX watchdog: bcm7038_wdt: Support platform data configuration ...
2022-01-05watchdog: Add Apple SoC watchdog driverSven Peter1-0/+1
Add support for the watchdog timer found in Apple SoCs. This driver is also required to reboot these machines. Signed-off-by: Sven Peter <sven@svenpeter.dev> Tested-by: Janne Grunau <j@jannau.net> Reviewed-by: Hector Martin <marcan@marcan.st> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211211123633.4392-2-sven@svenpeter.dev Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-01-05watchdog: Add Watchdog Timer driver for RZ/G2LBiju Das1-0/+1
Add Watchdog Timer driver for RZ/G2L SoC. WDT IP block supports normal watchdog timer function and reset request function due to CPU parity error. This driver currently supports normal watchdog timer function and later will add support for reset request function due to CPU parity error. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211130195357.18626-3-biju.das.jz@bp.renesas.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-01-05watchdog: Add Realtek Otto watchdog timerSander Vanheule1-0/+1
Realtek MIPS SoCs (platform name Otto) have a watchdog timer with pretimeout notifitication support. The WDT can (partially) hard reset, or soft reset the SoC. This driver implements all features as described in the devicetree binding, except the phase2 interrupt, and also functions as a restart handler. The cpu reset mode is considered to be a "warm" restart, since this mode does not reset all peripherals. Being an embedded system though, the "cpu" and "software" modes will still cause the bootloader to run on restart. It is not known how a forced system reset can be disabled on the supported platforms. This means that the phase2 interrupt will only fire at the same time as reset, so implementing phase2 is of little use. Signed-off-by: Sander Vanheule <sander@svanheule.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/6d060bccbdcc709cfa79203485db85aad3c3beb5.1637252610.git.sander@svanheule.net Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-12-28watchdog: Remove BCM63XX_WDTFlorian Fainelli1-1/+0
Now that we can utilize the BCM7038_WDT driver, remove that one which was not converted to the watchdog APIs. There are a couple of notable differences with how the bcm7038_wdt driver proceeds: - bcm63xx_wdt would register with the ad-hoc BCM63xx hardware timer API, but this would only be used in order to catch the interrupt *before* a SoC reset and make the kernel "die" - bcm6xx_wdt would register a software timer and kick it every second in order to pet the watchdog, thus offering a two step watchdog process. This is not something that is brought over to the bcm7038_wdt as it is deemed unnecessary. If user-space cannot pet the watchdog, but a kernel timer can, the system is still in a bad shape anyway. bcm7038_wdt is simpler in its behavior and behaves as a standard watchdog driver and is not making use of any specific platform APIs, therefore making it more maintainable and extensible. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211112224636.395101-8-f.fainelli@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-12-23watchdog: simatic-ipc-wdt: add new driver for Siemens Industrial PCsHenning Schild1-0/+1
This driver adds initial support for several devices from Siemens. It is based on a platform driver introduced in an earlier commit. One of the supported machines does access a GPIO pin to enable the watchdog. Here we poke GPIO memory because pinctrl does not come up. Signed-off-by: Henning Schild <henning.schild@siemens.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211213120502.20661-4-henning.schild@siemens.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-11-01watchdog: db8500_wdt: Rename driverLinus Walleij1-1/+1
This driver is named after the ambition to support more SoCs than the DB8500. Those were never produced, so cut down the scope and rename the driver accordingly. Since the Kconfig for the watchdog defaults to y this will still be built by default. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210922230947.1864357-2-linus.walleij@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-10-26watchdog: remove dead iop watchdog timer driverLukas Bulwahn1-1/+0
Commit 59d3ae9a5bf6 ("ARM: remove Intel iop33x and iop13xx support") removes the config ARCH_IOP13XX in ./arch/arm/Kconfig. Hence, since then, the corresponding iop watchdog timer driver is dead code. Remove this dead driver. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: bd70528 drop bd70528 supportMatti Vaittinen1-1/+0
The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/994d2e374262c3f59f4465c03ef23d3116120778.1621937490.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-06-21watchdog: Add Mstar MSC313e WDT driverDaniel Palmer1-0/+1
It adds a driver for the IP block handling the watchdog timer found for Mstar MSC313e SoCs and newer. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Co-developed-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Romain Perier <romain.perier@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210611200801.52139-3-romain.perier@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-06-21watchdog: Add hrtimer-based pretimeout featureCurtis Klein1-0/+1
This adds the option to use a hrtimer to generate a watchdog pretimeout event for hardware watchdogs that do not natively support watchdog pretimeouts. With this enabled, all watchdogs will appear to have pretimeout support in userspace. If no pretimeout value is set, there will be no change in the watchdog's behavior. If a pretimeout value is set for a specific watchdog that does not have built-in pretimeout support, a timer will be started that should fire at the specified time before the watchdog timeout would occur. When the watchdog is successfully pinged, the timer will be restarted. If the timer is allowed to fire it will generate a pretimeout event. However because a software timer is used, it may not be able to fire in every circumstance. If the watchdog does support a pretimeout natively, that functionality will be used instead of the hrtimer. The general design of this feaure was inspired by the software watchdog, specifically its own pretimeout implementation. However the software watchdog and this feature are completely independent. They can be used together; with or without CONFIG_SOFT_WATCHDOG_PRETIMEOUT enabled. The main advantage of using the hrtimer pretimeout with a hardware watchdog, compared to running the software watchdog with a hardware watchdog, is that if the hardware watchdog driver is unable to ping the watchdog (e.g. due to a bus or communication error), then the hrtimer pretimeout would still fire whereas the software watchdog would not. Signed-off-by: Curtis Klein <curtis.klein@hpe.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1612383090-27110-1-git-send-email-curtis.klein@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-06-21watchdog: Remove MV64x60 watchdog driverChristophe Leroy1-1/+0
Commit 92c8c16f3457 ("powerpc/embedded6xx: Remove C2K board support") removed the last selector of CONFIG_MV64X60. Therefore CONFIG_MV64X60_WDT cannot be selected anymore and can be removed. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/9c2952bcfaec3b1789909eaa36bbce2afbfab7ab.1616085654.git.christophe.leroy@csgroup.eu Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-03-10wdt: Support wdt on ROHM BD9576MUF and BD9573MUFMatti Vaittinen1-0/+1
Add Watchdog support for ROHM BD9576MUF and BD9573MUF PMICs which are mainly used to power the R-Car series processors. The watchdog is pinged using a GPIO and enabled using another GPIO. Additionally watchdog time-out can be configured to HW prior starting the watchdog. Watchdog timeout can be configured to detect only delayed ping or in a window mode where also too fast pings are detected. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-02-22Merge tag 'linux-watchdog-5.12-rc1' of git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-5/+1
Pull watchdog updates from Wim Van Sebroeck: "New drivers: - Intel Keembay Soc New chip versions: - sun4i: Add H616 compatible string - mt8192 wdt support - more Rockchip compatibles to snps,dw-wdt.yaml - binding for Qcom SDX55 - r8a779a0 (V3U) support Removed drivers: - sirf prima watchdog driver - sirf atlas watchdog driver - zte zx watchdog driver - tango watchdog driver - coh901 watchdog driver And several fixes and clean-ups" * tag 'linux-watchdog-5.12-rc1' of git://www.linux-watchdog.org/linux-watchdog: (24 commits) watchdog: qcom: Remove incorrect usage of QCOM_WDT_ENABLE_IRQ watchdog: mei_wdt: request stop on unregister dt-bindings: watchdog: Add binding for Qcom SDX55 watchdog: remove coh901 driver watchdog: remove tango driver watchdog: remove zte zx driver watchdog: remove sirf atlas driver watchdog: remove sirf prima driver watchdog: mt8192: add wdt support dt-binding: mt8192: add toprgu reset-controller head file dt-binding: mediatek: mt8192: update mtk-wdt document dt-binding: mediatek: watchdog: fix the description of compatible dt-binding: watchdog: add more Rockchip compatibles to snps,dw-wdt.yaml dt-bindings: watchdog: sun4i: Add H616 compatible string watchdog: mtk_wdt: Remove mtk_wdt_stop() in probe() to prevent the system freeze and it doesn't reboot by watchdog problem watchdog: renesas_wdt: add grace period before rebooting watchdog: stop wdd when watchdog hw running in reboot_notifier watchdog: ziirave_wdt: remove unused including <linux/version.h> dt-bindings: watchdog: renesas,wdt: add r8a779a0 (V3U) support watchdog: renesas_wdt: don't sleep in atomic context ...
2021-02-07watchdog: remove coh901 driverArnd Bergmann1-1/+0
The ST-Ericsson U300 platform is getting removed, so this driver is no longer needed. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210120162745.61268-6-arnd@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-02-07watchdog: remove tango driverArnd Bergmann1-1/+0
The tango platform is getting removed, so the driver is no longer needed. Cc: Marc Gonzalez <marc.w.gonzalez@free.fr> Cc: Mans Rullgard <mans@mansr.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mans Rullgard <mans@mansr.com> Link: https://lore.kernel.org/r/20210120162745.61268-5-arnd@kernel.org [groeck: Removed devicetree bindings] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-02-07watchdog: remove zte zx driverArnd Bergmann1-1/+0
The zte zx platform is getting removed, so this driver is no longer needed. Cc: Jun Nie <jun.nie@linaro.org> Cc: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210120162745.61268-4-arnd@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-02-07watchdog: remove sirf atlas driverArnd Bergmann1-1/+0
The CSR SiRF prima2/atlas platforms are getting removed, so this driver is no longer needed. Cc: Barry Song <baohua@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Barry Song <baohua@kernel.org> Link: https://lore.kernel.org/r/20210120162745.61268-3-arnd@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-02-07watchdog: remove sirf prima driverArnd Bergmann1-1/+0
The CSR SiRF prima2/atlas platforms are getting removed, so this driver is no longer needed. Cc: Barry Song <baohua@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Barry Song <baohua@kernel.org> Link: https://lore.kernel.org/r/20210120162745.61268-2-arnd@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-02-07watchdog: Add watchdog driver for Intel Keembay SocVijayakannan Ayyathurai1-0/+1
Intel Keembay Soc requires watchdog timer support. Add watchdog driver to enable this. Acked-by: Mark Gross <mgross@linux.intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vijayakannan Ayyathurai <vijayakannan.ayyathurai@intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/26d74f46ce74488424371dd3e16aa38508fa6c2e.1608141131.git.vijayakannan.ayyathurai@intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-01-25watchdog: intel_scu_watchdog: Remove driver for deprecated platformAndy Shevchenko1-1/+0
Intel Moorestown and Medfield are quite old Intel Atom based 32-bit platforms, which were in limited use in some Android phones, tablets and consumer electronics more than eight years ago. There are no bugs or problems ever reported outside from Intel for breaking any of that platforms for years. It seems no real users exists who run more or less fresh kernel on it. The commit 05f4434bc130 ("ASoC: Intel: remove mfld_machine") also in align with this theory. Due to above and to reduce a burden of supporting outdated drivers we remove the support of outdated platforms completely. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2020-12-13watchdog: remove pnx83xx driverThomas Bogendoerfer1-1/+0
Commit 625326ea9c84 ("MIPS: Remove PNX833x alias NXP_STB22x") removed support for PNX833x, so it's time to remove watchdog driver, too. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20201106130508.103598-1-tsbogend@alpha.franken.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-10-21Merge tag 'linux-watchdog-5.10-rc1' of git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-0/+1
Pull watchdog updates from Wim Van Sebroeck: - Add Toshiba Visconti watchdog driver - it87_wdt: add IT8772 + IT8784 - several fixes and improvements * tag 'linux-watchdog-5.10-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: Add Toshiba Visconti watchdog driver watchdog: bindings: Add binding documentation for Toshiba Visconti watchdog device watchdog: it87_wdt: add IT8784 ID watchdog: sp5100_tco: Enable watchdog on Family 17h devices if disabled watchdog: sp5100: Fix definition of EFCH_PM_DECODEEN3 watchdog: renesas_wdt: support handover from bootloader watchdog: imx7ulp: Watchdog should continue running for wait/stop mode watchdog: rti: Simplify with dev_err_probe() watchdog: davinci: Simplify with dev_err_probe() watchdog: cadence: Simplify with dev_err_probe() watchdog: remove unneeded inclusion of <uapi/linux/sched/types.h> watchdog: Use put_device on error watchdog: Fix memleak in watchdog_cdev_register watchdog: imx7ulp: Strictly follow the sequence for wdog operations watchdog: it87_wdt: add IT8772 ID watchdog: pcwd_usb: Avoid GFP_ATOMIC where it is not needed drivers: watchdog: rdc321x_wdt: Fix race condition bugs
2020-10-14watchdog: Add Toshiba Visconti watchdog driverNobuhiro Iwamatsu1-0/+1
Add the watchdog driver for Toshiba Visconti series. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20201005023012.603026-3-nobuhiro1.iwamatsu@toshiba.co.jp Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-09-17watchdog: add support for sl28cpld watchdogMichael Walle1-0/+1
Add support for the watchdog of the sl28cpld board management controller. This is part of a multi-function device driver. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-05-25watchdog: Add new arm_smc_wdt watchdog driverJulius Werner1-0/+1
This patch adds a watchdog driver that can be used on ARM systems with the appropriate watchdog implemented in Secure Monitor firmware. The driver communicates with firmware via a Secure Monitor Call. This may be useful for platforms using TrustZone that want the Secure Monitor firmware to have the final control over the watchdog. This is implemented on mt8173 chromebook devices oak, elm and hana in arm trusted firmware file plat/mediatek/mt8173/drivers/wdt/wdt.c. Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Evan Benn <evanbenn@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: Xingyu Chen<xingyu.chen@amlogic.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200505131242.v6.2.Ia92bb4d4ce84bcefeba1d00aaa1c1e919b6164ef@changeid Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-04-01watchdog: Add K3 RTI watchdog supportTero Kristo1-0/+1
Texas Instruments K3 SoCs contain an RTI (Real Time Interrupt) module which can be used as a watchdog. This IP provides a support for windowed watchdog mode, in which the watchdog must be petted within a certain time window. If it is petted either too soon, or too late, a watchdog error will be triggered. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200312095808.19907-4-t-kristo@ti.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-09-17watchdog: Add i.MX7ULP watchdog supportAnson Huang1-0/+1
The i.MX7ULP Watchdog Timer (WDOG) module is an independent timer that is available for system use. It provides a safety feature to ensure that software is executing as planned and that the CPU is not stuck in an infinite loop or executing unintended code. If the WDOG module is not serviced (refreshed) within a certain period, it resets the MCU. Add driver support for i.MX7ULP watchdog. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1566999303-18795-2-git-send-email-Anson.Huang@nxp.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-09-16watchdog: remove w90x900 driverArnd Bergmann1-1/+0
The ARM w90x900 platform is getting removed, so this driver is obsolete Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20190809202749.742267-7-arnd@arndb.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-09-16watchdog: remove ks8695 driverArnd Bergmann1-1/+0
The platform is getting removed, so there are no remaining users of this driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20190809202749.742267-5-arnd@arndb.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: imx_sc: Add i.MX system controller watchdog supportAnson Huang1-0/+1
i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller inside, the system controller is in charge of controlling power, clock and watchdog etc.. This patch adds i.MX system controller watchdog driver support, watchdog operation needs to be done in secure EL3 mode via ARM-Trusted-Firmware, using SMC call, CPU will trap into ARM-Trusted-Firmware and then it will request system controller to do watchdog operation via IPC. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: bd70528: Initial support for ROHM BD70528 watchdog blockMatti Vaittinen1-0/+1
Initial support for watchdog block included in ROHM BD70528 power management IC. Configurations for low power states are still to be checked. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-11Merge tag 'linux-watchdog-5.1-rc1' of git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-0/+1
Pull watchdog updates from Wim Van Sebroeck: - a new watchdog driver for the Mellanox systems - renesas-wdt: Document r8a77470 support - numerous 'Mark expected switch fall-throughs' - qcom: Add suspend/resume support - some small fixes and documentation updates * tag 'linux-watchdog-5.1-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: w83877f_wdt: Mark expected switch fall-through watchdog: sc520_wdt: Mark expected switch fall-through watchdog: sbc60xxwdt: Mark expected switch fall-through watchdog: smsc37b787_wdt: Mark expected switch fall-through watchdog: sc1200: Mark expected switch fall-through watchdog: pc87413: Mark expected switch fall-through Documentation/watchdog: Add documentation mlx-wdt driver watchdog: mlx-wdt: introduce a watchdog driver for Mellanox systems. platform_data/mlxreg: additions for Mellanox watchdog driver. watchdog: Update sysfs documentation. watchdog: dw: remove useless pr_fmt watchdog: pika_wdt: drop pointless static qualifier in pikawdt_init watchdog/hpwdt: Update Kconfig documentation dt-bindings: watchdog: renesas-wdt: Document r8a77470 support watchdog: qcom: Add suspend/resume support
2019-03-02watchdog: mlx-wdt: introduce a watchdog driver for Mellanox systems.Michael Shych1-0/+1
Introduce watchdog driver for a various range of Mellanox Ethernet and Infiniband switch systems. Watchdog driver for Mellanox watchdog devices, implemented in programmable logic device. Main and auxiliary watchdog devices can exist on the same system. There are several actions that can be defined in the watchdog: system reset, start fans on full speed and increase a counter. The last 2 actions are performed without a system reset. Actions without reset are provided for auxiliary watchdog devices, which is optional. Access to HW registers is performed through generic regmap interface. There are 2 types of HW watchdog implementations. Type 1: actual HW timeout can be defined as power of 2 msec. e.g. timeout 20 sec will be rounded up to 32768 msec.; maximum timeout period is 32 sec (32768 msec.); get time-left isn't supported Type 2: actual HW timeout is defined in sec. and it's the same as user-defined timeout; maximum timeout is 255 sec; get time-left is supported; Watchdog driver is probed from the common mlx_platform driver. Signed-off-by: Michael Shych <michaelsh@mellanox.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-01-16watchdog: stpmic1: Add STPMIC1 watchdog driverPascal PAILLET-LME1-0/+1
The STPMIC1 PMIC embeds a watchdog which is disabled by default. As soon as the watchdog is started, it must be refreshed periodically otherwise the PMIC goes off. Signed-off-by: Pascal Paillet <p.paillet@st.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-12-24watchdog: tqmx86: Add watchdog driver for the IO controllerAndrew Lunn1-0/+1
Some TQ-Systems ComExpress modules have an IO controller with a watchdog timer. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2018-12-22watchdog: Add pm8916 watchdog driverLoic Poulain1-0/+1
The PM816 module is a versatile PMIC with many diverse functions integrated, including, a watchdog. This watchdog is subcomponent of the PON (Power On) peripheral, in the same way as pwrkey/resin buttons. It works with two timers (2-stages), the first one generates an IRQ to the main SoC (APQ8016/MSM8916), the second one performs the reset. This driver expects the following device hierarchy: [pm8916]->[pm8916-pon]->[pm8916-wdt] It uses the pm8916 regmap to access PM8916 registers. Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2018-10-13watchdog: Add support for Armada 37xx CPU watchdogMarek Behún1-0/+1
This adds support for the CPU watchdog found on Marvell Armada 37xx SoCs. There are 4 counters which can be set as CPU watchdog counters. This driver uses the second counter (ID 1, counting from 0) as watchdog counter, and first counter (ID 0) to implement pinging on the second counter without the need to disable it. Since counters IDs 2 and 3 are enabled already before even U-Boot starts, this driver does not use them at all, for example by adding a device tree property for counter selection. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2018-08-02watchdog: add driver for the MEN 16z069 IP-CoreJohannes Thumshirn1-0/+1
Add a driver for the MEN 16z069 Watchdog and Reset Controller IP-Core. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Michael Moese <mmoese@suse.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2018-04-13Merge tag 'linux-watchdog-4.17-rc1' of git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-0/+1
Pull watchdog updates from Wim Van Sebroeck: - Add Nuvoton NPCM watchdog driver - renesas_wdt: Add R-Car Gen2 support - renesas_wdt: add suspend/resume and restart handler support - hpwdt: convert to watchdog core and improve NMI - improve timeout setting/handling in various drivers - coh901327: make license text and module licence match - fix error handling in asm9260_wdt, sprd_wdt and davinci_wdt - aspeed imrovements - dw improvements (for control register & suspend/resume) - add SPDX identifiers for watchdog subsystem * tag 'linux-watchdog-4.17-rc1' of git://www.linux-watchdog.org/linux-watchdog: (35 commits) watchdog: davinci_wdt: fix error handling in davinci_wdt_probe() watchdog: add SPDX identifiers for watchdog subsystem watchdog: aspeed: Allow configuring for alternate boot watchdog: Add Nuvoton NPCM watchdog driver dt-bindings: watchdog: Add Nuvoton NPCM description watchdog: dw: save/restore control and timeout across suspend/resume watchdog: dw: RMW the control register watchdog: sprd_wdt: Fix error handling in sprd_wdt_enable() watchdog: aspeed: Fix translation of reset mode to ctrl register watchdog: renesas_wdt: Add restart handler watchdog: renesas_wdt: Add R-Car Gen2 support watchdog: renesas_wdt: Add suspend/resume support watchdog: f71808e_wdt: Fix WD_EN register read watchdog: hpwdt: Update driver version. watchdog: hpwdt: Add dynamic debug watchdog: hpwdt: Programable Pretimeout NMI watchdog: hpwdt: remove allow_kdump module parameter. watchdog: hpwdt: condition early return of NMI handler on iLO5 watchdog: hpwdt: Modify to use watchdog core. watchdog: hpwdt: Update nmi_panic message. ...
2018-03-26watchdog: remove bfin_wdt driverArnd Bergmann1-3/+0
The blackfin architecture is getting removed, so this driver has become obsolete. Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Aaron Wu <aaron.wu@analog.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-26treewide: simplify Kconfig dependencies for removed archsArnd Bergmann1-6/+0
A lot of Kconfig symbols have architecture specific dependencies. In those cases that depend on architectures we have already removed, they can be omitted. Acked-by: Kalle Valo <kvalo@codeaurora.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-24watchdog: Add Nuvoton NPCM watchdog driverJoel Stanley1-0/+1
The Nuvoton NPCM750 has a watchdog implemented as a single register inside the timer peripheral. This driver exposes that watchdog as a standard watchdog device with coarse timeout intervals, limited by the combination of prescaler and counter that is provided by the hardware. The calculation is taken from the Nuvoton vendor tree. The watchdog is left running if a bootloader had it going. The rate is the one specified in the device tree, or the default value (obtained from the datasheet). There is a pre-timeout IRQ that is wired up. This timeout always occurs 1024 clocks before the timeout. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2018-02-07Merge tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-4/+3
Pull watchdog updates from Wim Van Sebroeck: - new watchdog device drivers for Realtek RTD1295 and Spreadtrum SC9860 platform - add support for the following devices: jz4780 SoC, AST25xx series SoC and r8a77970 SoC - convert to watchdog framework: i6300esb_wdt, xen_wdt and sp5100_tco - several fixes for watchdog core - remove at32ap700x and obsolete documentation - gpio: Convert to use GPIO descriptors - rename gemini into FTWDT010 as this IP block is generc from Faraday Technology - various clean-ups and small bugfixes - add Guenter Roeck as co-maintainer - change maintainers e-mail address * tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdog: (74 commits) documentation: watchdog: remove documentation of w83697hf_wdt/w83697ug_wdt documentation: watchdog: remove documentation for ixp2000 documentation: watchdog: remove documentation of at32ap700x_wdt watchdog: remove at32ap700x_wdt watchdog: sp5100_tco: Add support for recent FCH versions watchdog: sp5100-tco: Abort if watchdog is disabled by hardware watchdog: sp5100_tco: Use bit operations watchdog: sp5100_tco: Convert to use watchdog subsystem watchdog: sp5100_tco: Clean up function and variable names watchdog: sp5100_tco: Use dev_ print functions where possible watchdog: sp5100_tco: Match PCI device early watchdog: sp5100_tco: Clean up sp5100_tco_setupdevice watchdog: sp5100_tco: Use standard error codes watchdog: sp5100_tco: Use request_muxed_region where possible watchdog: sp5100_tco: Fix watchdog disable bit watchdog: sp5100_tco: Always use SP5100_IO_PM_{INDEX_REG,DATA_REG} watchdog: core: make sure the watchdog_worker is not deferred watchdog: mt7621: switch to using managed devm_watchdog_register_device() watchdog: mt7621: set WDOG_HW_RUNNING bit when appropriate watchdog: imx2_wdt: restore previous timeout after suspend+resume ...
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