wireguard-linux/drivers/watchdog, branch jd/unified-crypt-queue

watchdog: Add K3 RTI watchdog support

2020-04-01T09:35:23Z

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 Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20200312095808.19907-4-t-kristo@ti.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: ziirave_wdt: change name to be more specific

2020-04-01T09:35:22Z

The RAVE watchdog is not a full system watchdog, but is used to reset ethernet switch when required. Change the name to better reflect this usage. Signed-off-by: Lucas Stach Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20200313101138.25915-1-l.stach@pengutronix.de Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: orion: use 0 for unset heartbeat

2020-04-01T09:35:22Z

If the heartbeat module param is not specified we would get an error message watchdog: f1020300.watchdog: driver supplied timeout (4294967295) out of range watchdog: f1020300.watchdog: falling back to default timeout (171) This is because we were initialising heartbeat to -1. By removing the initialisation (thus letting the C run time initialise it to 0) we silence the warning message and the default timeout is still used. Signed-off-by: Chris Packham Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20200313031312.1485-1-chris.packham@alliedtelesis.co.nz Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: npcm: remove whitespaces

2020-03-18T10:15:25Z

Signed-off-by: Tomer Maimon Link: https://lore.kernel.org/r/20200303100114.87786-4-tmaimon77@gmail.com Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: reset last_hw_keepalive time at start

2020-03-18T10:15:25Z

Currently the watchdog core does not initialize the last_hw_keepalive time during watchdog startup. This will cause the watchdog to be pinged immediately if enough time has passed from the system boot-up time, and some types of watchdogs like K3 RTI does not like this. To avoid the issue, setup the last_hw_keepalive time during watchdog startup. Signed-off-by: Tero Kristo Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20200302200426.6492-3-t-kristo@ti.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: imx2_wdt: Drop .remove callback

2020-03-18T10:15:25Z

.remove callback implementation doesn' call clk_disable_unprepare() which is buggy, actually, we can just use devm_watchdog_register_device() and devm_add_action_or_reset() to handle all necessary operations for remove action, then .remove callback can be dropped. Signed-off-by: Anson Huang Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/1582512687-13312-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: Add stop_on_reboot parameter to control reboot policy

2020-03-18T10:15:24Z

Many watchdog drivers use watchdog_stop_on_reboot() helper in order to stop the watchdog on system reboot. Unfortunately, this logic is coded in driver's probe function and doesn't allows user to decide what to do during shutdown/reboot. On the other side, Xen and Qemu watchdog drivers (xen_wdt and i6300esb) may be configured to either send NMI or turn off/reboot VM as the watchdog action. As the kernel may stuck at any state, sending NMIs can't reliably reboot the VM. At Arista, we benefited from the following set-up: the emulated watchdogs trigger VM reset and softdog is set to catch less severe conditions to generate vmcore. Just before reboot watchdog's timeout is increased to some good-enough value (3 mins). That keeps watchdog always running and guarantees that VM doesn't stuck. Provide new stop_on_reboot module parameter to let user control watchdog's reboot policy. Cc: Guenter Roeck Cc: Wim Van Sebroeck Cc: linux-watchdog@vger.kernel.org Signed-off-by: Dmitry Safonov Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20200223114939.194754-1-dima@arista.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: wm831x_wdt: Remove GPIO handling

2020-03-18T10:15:24Z

An attempt to convert the driver to using GPIO descriptors (see Link tag) was discouraged in favor of deleting the handling of the update GPIO altogehter since there are no in-tree users. This patch deletes the GPIO handling instead. Cc: Richard Fitzgerald Cc: Charles Keepax Cc: Mark Brown Link: https://lore.kernel.org/linux-watchdog/20200210102209.289379-1-linus.walleij@linaro.org/ Signed-off-by: Linus Walleij Reviewed-by: Guenter Roeck Acked-by: Charles Keepax Link: https://lore.kernel.org/r/20200229115046.57781-1-linus.walleij@linaro.org Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: imx7ulp: Remove unused include of init.h

2020-03-18T10:15:23Z

There is nothing in use from init.h, remove it. Signed-off-by: Anson Huang Link: https://lore.kernel.org/r/1582250430-8872-2-git-send-email-Anson.Huang@nxp.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: imx_sc_wdt: Remove unused includes

2020-03-18T10:15:23Z

There is nothing in use from init.h/reboot.h, remove them. Signed-off-by: Anson Huang Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/1582250430-8872-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck