Ben Wolsieffer 32903ecf21 watchdog: stm32_iwdg: initialize default timeout ... [ Upstream commit dbd7c0088b ] The driver never sets a default timeout value, therefore it is initialized to zero. When CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED is enabled, the watchdog is started during probe. The kernel is supposed to automatically ping the watchdog from this point until userspace takes over, but this does not happen if the configured timeout is zero. A zero timeout causes watchdog_need_worker() to return false, so the heartbeat worker does not run and the system therefore resets soon after the driver is probed. This patch fixes this by setting an arbitrary non-zero default timeout. The default could be read from the hardware instead, but I didn't see any reason to add this complexity. This has been tested on an STM32F746. Fixes: 85fdc63fe2 ("drivers: watchdog: stm32_iwdg: set WDOG_HW_RUNNING at probe") Signed-off-by: Ben Wolsieffer <ben.wolsieffer@hefring.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240228182723.12855-1-ben.wolsieffer@hefring.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-26 18:22:01 -04:00
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acquirewdt.c
advantechwdt.c
alim1535_wdt.c
alim7101_wdt.c
ar7_wdt.c
arm_smc_wdt.c
armada_37xx_wdt.c	watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe()	2022-08-21 15:16:10 +02:00
asm9260_wdt.c
aspeed_wdt.c	watchdog: aspeed: fix hardware timeout calculation	2021-07-20 16:05:51 +02:00
at91rm9200_wdt.c
at91sam9_wdt.c	watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path	2023-03-11 16:40:11 +01:00
at91sam9_wdt.h
ath79_wdt.c
atlas7_wdt.c
bcm47xx_wdt.c
bcm63xx_wdt.c
bcm2835_wdt.c	watchdog: bcm2835_wdt: Fix WDIOC_SETTIMEOUT handling	2024-01-25 14:37:49 -08:00
bcm7038_wdt.c
bcm_kona_wdt.c
bd70528_wdt.c
booke_wdt.c
cadence_wdt.c
coh901327_wdt.c
cpu5wdt.c
cpwd.c
da9052_wdt.c
da9055_wdt.c
da9062_wdt.c
da9063_wdt.c
davinci_wdt.c
diag288_wdt.c	watchdog: diag288_wdt: fix __diag288() inline assembly	2023-02-15 17:22:17 +01:00
digicolor_wdt.c
dw_wdt.c	watchdog: dw_wdt: Fix the error handling path of dw_wdt_drv_probe()	2023-05-17 11:48:10 +02:00
ebc-c384_wdt.c
ep93xx_wdt.c
eurotechwdt.c
f71808e_wdt.c	watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT	2021-11-18 14:04:24 +01:00
ftwdt010_wdt.c
gef_wdt.c
geodewdt.c
gpio_wdt.c
hpwdt.c	watchdog/hpwdt: Only claim UNKNOWN NMI if from iLO	2024-01-25 14:37:49 -08:00
i6300esb.c
ib700wdt.c
ibmasr.c
ie6xx_wdt.c
imgpdc_wdt.c
imx2_wdt.c
imx7ulp_wdt.c
imx_sc_wdt.c	watchdog: imx_sc_wdt: fix pretimeout	2021-07-20 16:05:47 +02:00
indydog.c
intel-mid_wdt.c	watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load	2023-09-19 12:20:25 +02:00
intel_scu_watchdog.c
intel_scu_watchdog.h
iop_wdt.c
it87_wdt.c	watchdog: it87_wdt: Keep WDTCTRL bit 3 unmodified for IT8784/IT8786	2024-02-23 08:42:12 +01:00
it8712f_wdt.c
iTCO_vendor.h
iTCO_vendor_support.c
iTCO_wdt.c	watchdog: iTCO_wdt: Set NO_REBOOT if the watchdog is not already running	2023-10-10 21:53:34 +02:00
ixp4xx_wdt.c
jz4740_wdt.c	watchdog: jz4740: Fix return value check in jz4740_wdt_probe()	2021-07-20 16:05:51 +02:00
Kconfig	ar7: fix kernel builds for compiler test	2021-11-18 14:04:24 +01:00
kempld_wdt.c
lantiq_wdt.c
loongson1_wdt.c
lpc18xx_wdt.c	watchdog: Fix possible use-after-free by calling del_timer_sync()	2021-07-20 16:05:47 +02:00
m54xx_wdt.c
machzwd.c
Makefile
max63xx_wdt.c
max77620_wdt.c
mei_wdt.c
mena21_wdt.c
menf21bmc_wdt.c
menz69_wdt.c	watchdog: menz069_wdt: fix watchdog initialisation	2023-06-09 10:30:07 +02:00
meson_gxbb_wdt.c
meson_wdt.c
mixcomwd.c
mlx_wdt.c
moxart_wdt.c
mpc8xxx_wdt.c
mt7621_wdt.c
mtk_wdt.c
mtx-1_wdt.c
mv64x60_wdt.c
ni903x_wdt.c
nic7018_wdt.c
npcm_wdt.c
nv_tco.c
nv_tco.h
octeon-wdt-main.c
octeon-wdt-nmi.S
of_xilinx_wdt.c
omap_wdt.c	watchdog: Fix OMAP watchdog early handling	2021-11-18 14:03:43 +01:00
omap_wdt.h
orion_wdt.c
pc87413_wdt.c
pcwd.c
pcwd_pci.c
pcwd_usb.c	watchdog: pcwd_usb: Fix attempting to access uninitialized memory	2023-03-11 16:40:12 +01:00
pic32-dmt.c
pic32-wdt.c
pika_wdt.c
pm8916_wdt.c
pnx833x_wdt.c
pnx4008_wdt.c
pretimeout_noop.c
pretimeout_panic.c
qcom-wdt.c
rave-sp-wdt.c
rc32434_wdt.c
rdc321x_wdt.c
renesas_wdt.c
retu_wdt.c
riowd.c
rn5t618_wdt.c
rt2880_wdt.c
rtd119x_wdt.c
rti_wdt.c	watchdog: rti_wdt: Drop runtime pm reference count when watchdog is unused	2024-01-25 14:37:49 -08:00
rza_wdt.c
s3c2410_wdt.c
sa1100_wdt.c
sama5d4_wdt.c
sb_wdog.c
sbc60xxwdt.c	watchdog: Fix possible use-after-free in wdt_startup()	2021-07-20 16:05:47 +02:00
sbc7240_wdt.c
sbc8360.c
sbc_epx_c3.c
sbc_fitpc2_wdt.c
sbsa_gwdt.c	watchdog: sbsa_wdog: Make sure the timeout programming is within the limits	2023-04-20 12:10:28 +02:00
sc520_wdt.c	watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff()	2021-07-20 16:05:47 +02:00
sc1200wdt.c
sch311x_wdt.c
scx200_wdt.c
shwdt.c
sirfsoc_wdt.c
sl28cpld_wdt.c
smsc37b787_wdt.c
softdog.c
sp805_wdt.c	amba: Make the remove callback return void	2022-04-08 14:40:02 +02:00
sp5100_tco.c	watchdog: sp5100_tco: Immediately trigger upon starting.	2023-05-30 12:57:56 +01:00
sp5100_tco.h
sprd_wdt.c
st_lpc_wdt.c
stm32_iwdg.c	watchdog: stm32_iwdg: initialize default timeout	2024-03-26 18:22:01 -04:00
stmp3xxx_rtc_wdt.c
stpmic1_wdt.c
sun4v_wdt.c
sunxi_wdt.c
tangox_wdt.c
tegra_wdt.c
tqmx86_wdt.c
ts72xx_wdt.c
ts4800_wdt.c	watchdog: ts4800_wdt: Fix refcount leak in ts4800_wdt_probe	2022-06-14 18:32:34 +02:00
twl4030_wdt.c
txx9wdt.c
uniphier_wdt.c
ux500_wdt.c
via_wdt.c
visconti_wdt.c
w83627hf_wdt.c
w83877f_wdt.c	watchdog: Fix possible use-after-free by calling del_timer_sync()	2021-07-20 16:05:47 +02:00
w83977f_wdt.c
wafer5823wdt.c
watchdog_core.c
watchdog_core.h
watchdog_dev.c	watchdog: set cdev owner before adding	2024-01-25 14:37:49 -08:00
watchdog_pretimeout.c
watchdog_pretimeout.h
wd501p.h
wdat_wdt.c	watchdog: wdat_wdt: Stop watchdog when rebooting the system	2022-06-14 18:32:43 +02:00
wdrtas.c
wdt.c
wdt285.c
wdt977.c
wdt_pci.c
wm831x_wdt.c
wm8350_wdt.c
xen_wdt.c
ziirave_wdt.c
zx2967_wdt.c