Ben Wolsieffer bcc3ec2bdb watchdog: stm32_iwdg: initialize default timeout ... [ Upstream commit dbd7c0088b7f44aa0b9276ed3449df075a7b5b54 ] 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: 85fdc63fe256 ("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 18:22:24 -04:00
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acquirewdt.c
advantechwdt.c
alim1535_wdt.c
alim7101_wdt.c
ar7_wdt.c
armada_37xx_wdt.c	watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe()	2022-08-25 11:18:06 +02:00
asm9260_wdt.c
aspeed_wdt.c
at91rm9200_wdt.c
at91sam9_wdt.c	watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path	2023-03-11 16:44:10 +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 14:34:28 -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	2023-02-22 12:50:27 +01:00
digicolor_wdt.c
dw_wdt.c
ebc-c384_wdt.c
ep93xx_wdt.c
eurotechwdt.c
f71808e_wdt.c
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 14:34:28 -08:00
i6300esb.c
ib700wdt.c
ibmasr.c
ie6xx_wdt.c
imgpdc_wdt.c
imx2_wdt.c
imx7ulp_wdt.c
imx_sc_wdt.c
indydog.c
intel_scu_watchdog.c
intel_scu_watchdog.h
intel-mid_wdt.c	watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load	2023-09-23 10:59:58 +02:00
iop_wdt.c
it87_wdt.c
it8712f_wdt.c
iTCO_vendor_support.c
iTCO_vendor.h
iTCO_wdt.c	watchdog: iTCO_wdt: Set NO_REBOOT if the watchdog is not already running	2023-10-10 21:46:40 +02:00
ixp4xx_wdt.c
jz4740_wdt.c
Kconfig
kempld_wdt.c
lantiq_wdt.c
loongson1_wdt.c
lpc18xx_wdt.c
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 10:28:55 +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
omap_wdt.h
orion_wdt.c
pc87413_wdt.c
pcwd_pci.c
pcwd_usb.c	watchdog: pcwd_usb: Fix attempting to access uninitialized memory	2023-03-11 16:44:11 +01:00
pcwd.c
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
rza_wdt.c
s3c2410_wdt.c
sa1100_wdt.c
sama5d4_wdt.c
sb_wdog.c
sbc60xxwdt.c
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 12:07:37 +02:00
sc520_wdt.c
sc1200wdt.c
sch311x_wdt.c
scx200_wdt.c
shwdt.c
sirfsoc_wdt.c
smsc37b787_wdt.c
softdog.c
sp805_wdt.c
sp5100_tco.c	watchdog: sp5100_tco: Immediately trigger upon starting.	2023-05-30 12:44:08 +01:00
sp5100_tco.h
sprd_wdt.c
st_lpc_wdt.c
stm32_iwdg.c	watchdog: stm32_iwdg: initialize default timeout	2024-03-26 18:22:24 -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
twl4030_wdt.c
txx9wdt.c
uniphier_wdt.c
ux500_wdt.c
via_wdt.c
w83627hf_wdt.c
w83877f_wdt.c
w83977f_wdt.c
wafer5823wdt.c
watchdog_core.c
watchdog_core.h
watchdog_dev.c	watchdog: set cdev owner before adding	2024-01-25 14:34:28 -08:00
watchdog_pretimeout.c
watchdog_pretimeout.h
wd501p.h
wdat_wdt.c
wdrtas.c
wdt285.c
wdt977.c
wdt_pci.c
wdt.c
wm831x_wdt.c
wm8350_wdt.c
xen_wdt.c
ziirave_wdt.c
zx2967_wdt.c