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linux/drivers/watchdog
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Alistair Francis cf6e4bc16d watchdog: imx2_wdg: Alow ping on suspend 
The i.MX watchdog cannot be disabled by software once it has been
enabled. This means that it can't be stopped before suspend.

For systems that enter low power mode this is fine, as the watchdog will
be automatically stopped by hardware in low power mode. Not all i.MX
platforms support low power mode in the mainline kernel. For example the
i.MX7D does not enter low power mode and so will be rebooted 2 minutes
after entering sleep states.

This patch introduces a device tree property "fsl,ping-during-suspend"
that can be used to enable ping on suspend support for these systems.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220127104739.312592-1-alistair@alistair23.me
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-03-27 17:04:07 +02:00
..
acquirewdt.c
compat_ioctl: move WDIOC handling into wdt drivers
2019-10-23 17:23:46 +02:00
advantechwdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
alim1535_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
alim7101_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
apple_wdt.c
watchdog: Add Apple SoC watchdog driver
2022-01-05 10:38:37 +01:00
ar7_wdt.c
watchdog: ar7_wdt: Make use of the helper function devm_platform_ioremap_resource_byname()
2021-10-26 21:31:08 +02:00
arm_smc_wdt.c
watchdog: Add new arm_smc_wdt watchdog driver
2020-05-25 08:55:46 +02:00
armada_37xx_wdt.c
treewide: change my e-mail address, fix my name
2021-04-09 14:54:23 -07:00
asm9260_wdt.c
…
aspeed_wdt.c
watchdog: aspeed: fix hardware timeout calculation
2021-06-21 08:49:04 +02:00
at91rm9200_wdt.c
compat_ioctl: move WDIOC handling into wdt drivers
2019-10-23 17:23:46 +02:00
at91sam9_wdt.c
…
at91sam9_wdt.h
watchdog: sama5d4_wdt: addition of sam9x60 compatible watchdog
2020-01-27 15:55:44 +01:00
ath79_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
bcm47xx_wdt.c
…
bcm2835_wdt.c
watchdog: bcm2835_wdt: consider system-power-controller property
2021-08-22 10:28:08 +02:00
bcm7038_wdt.c
watchdog: bcm7038_wdt: Add platform device id for bcm63xx-wdt
2021-12-28 14:03:02 +01:00
bcm_kona_wdt.c
watchdog: bcm_kona_wdt: Use correct return value for bcm_kona_wdt_probe()
2020-08-05 18:42:46 +02:00
bd9576_wdt.c
wdt: Support wdt on ROHM BD9576MUF and BD9573MUF
2021-03-10 10:58:44 +00:00
booke_wdt.c
watchdog: fix syntactic kernel-doc issues
2021-06-21 08:49:09 +02:00
cadence_wdt.c
watchdog: cadence: Simplify with dev_err_probe()
2020-10-14 15:02:24 +02:00
cpu5wdt.c
module: remove never implemented MODULE_SUPPORTED_DEVICE
2021-03-17 13:16:18 -07:00
cpwd.c
module: remove never implemented MODULE_SUPPORTED_DEVICE
2021-03-17 13:16:18 -07:00
da9052_wdt.c
…
da9055_wdt.c
…
da9062_wdt.c
watchdog: da9062: da9063: prevent pings ahead of machine reset
2021-10-26 21:31:05 +02:00
da9063_wdt.c
watchdog: da9063: use atomic safe i2c transfer in reset handler
2021-12-28 14:03:03 +01:00
davinci_wdt.c
watchdog: davinci: Use div64_ul instead of do_div
2021-12-28 14:03:03 +01:00
db8500_wdt.c
watchdog: db8500_wdt: Rename symbols
2021-11-01 20:18:09 +01:00
diag288_wdt.c
watchdog: diag288_wdt: Remove redundant assignment
2021-06-21 08:49:14 +02:00
digicolor_wdt.c
watchdog: digicolor_wdt: Remove unused variable in dc_wdt_probe
2019-07-15 08:49:11 +02:00
dw_wdt.c
watchdog: dw_wdt: Fix duplicate included linux/kernel.h
2021-06-21 08:48:59 +02:00
ebc-c384_wdt.c
…
ep93xx_wdt.c
…
eurotechwdt.c
watchdog: fix syntactic kernel-doc issues
2021-06-21 08:49:09 +02:00
f71808e_wdt.c
watchdog: f71808e_wdt: Add F81966 support
2021-12-28 13:59:00 +01:00
ftwdt010_wdt.c
…
gef_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
geodewdt.c
watchdog: geodewdt: remove unneeded break
2020-12-13 16:17:41 +01:00
gpio_wdt.c
…
hpwdt.c
watchdog/hpwdt: New PCI IDs
2021-06-21 08:49:00 +02:00
i6300esb.c
…
ib700wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
ibmasr.c
compat_ioctl: move WDIOC handling into wdt drivers
2019-10-23 17:23:46 +02:00
ie6xx_wdt.c
…
imgpdc_wdt.c
…
imx2_wdt.c
watchdog: imx2_wdg: Alow ping on suspend
2022-03-27 17:04:07 +02:00
imx7ulp_wdt.c
watchdog: imx7ulp: Watchdog should continue running for wait/stop mode
2020-10-14 15:02:26 +02:00
imx_sc_wdt.c
watchdog: imx_sc_wdt: fix pretimeout
2021-06-21 08:49:14 +02:00
indydog.c
compat_ioctl: move WDIOC handling into wdt drivers
2019-10-23 17:23:46 +02:00
intel-mid_wdt.c
watchdog: intel-mid_wdt: Postpone IRQ handler registration till SCU is ready
2021-01-25 20:05:32 +02:00
it87_wdt.c
watchdog: it87_wdt: remove useless function
2021-06-21 08:49:04 +02:00
it8712f_wdt.c
watchdog: it8712f_wdt: remove definition of DEBUG
2021-02-07 14:41:18 +01:00
iTCO_vendor_support.c
watchdog: iTCO_wdt: Export vendorsupport
2020-03-10 10:20:27 +01:00
iTCO_vendor.h
watchdog: iTCO_wdt: Export vendorsupport
2020-03-10 10:20:27 +01:00
iTCO_wdt.c
watchdog: iTCO_wdt: No need to stop the timer in probe
2021-10-26 21:31:12 +02:00
ixp4xx_wdt.c
watchdog: ixp4xx_wdt: Fix address space warning
2021-10-26 20:22:51 +02:00
jz4740_wdt.c
watchdog: jz4740: Fix return value check in jz4740_wdt_probe()
2021-06-21 08:49:11 +02:00
Kconfig
linux-watchdog 5.17-rc1 tag
2022-01-17 08:07:57 +02:00
keembay_wdt.c
watchdog: keembay: Typo corrections and other blank operations
2021-06-21 08:48:57 +02:00
kempld_wdt.c
…
lantiq_wdt.c
…
loongson1_wdt.c
…
lpc18xx_wdt.c
watchdog: Fix possible use-after-free by calling del_timer_sync()
2021-06-21 08:49:03 +02:00
m54xx_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
machzwd.c
watchdog: Fix fall-through warnings for Clang
2021-05-17 18:56:23 -05:00
Makefile
linux-watchdog 5.17-rc1 tag
2022-01-17 08:07:57 +02:00
max63xx_wdt.c
watchdog: max63xx_wdt: Add device tree probing
2021-08-22 10:28:11 +02:00
max77620_wdt.c
…
mei_wdt.c
mei: fix kdoc in the driver
2021-06-22 12:40:31 +02:00
mena21_wdt.c
…
menf21bmc_wdt.c
…
menz69_wdt.c
drivers: mcb: use symbol namespaces
2019-11-03 19:54:53 +01:00
meson_gxbb_wdt.c
watchdog: meson_gxbb_wdt: remove stop_on_reboot
2021-12-28 13:59:06 +01:00
meson_wdt.c
watchdog: meson_wdt: Use device_get_match_data() helper
2021-06-21 08:49:05 +02:00
mixcomwd.c
compat_ioctl: move WDIOC handling into wdt drivers
2019-10-23 17:23:46 +02:00
mlx_wdt.c
watchdog: mlx-wdt: Use regmap_write_bits()
2021-10-26 21:31:10 +02:00
moxart_wdt.c
…
mpc8xxx_wdt.c
watchdog: mpc8xxx_wdt: Constify static struct watchdog_ops
2021-08-22 10:28:10 +02:00
msc313e_wdt.c
watchdog: msc313e: Check if the WDT was running at boot
2022-01-05 10:38:51 +01:00
mt7621_wdt.c
…
mtk_wdt.c
watchdog: mtk_wdt: use platform_get_irq_optional
2022-01-05 10:33:16 +01:00
mtx-1_wdt.c
watchdog: mtx-1: drop au1000.h header file
2021-06-21 08:48:58 +02:00
ni903x_wdt.c
…
nic7018_wdt.c
…
npcm_wdt.c
watchdog: npcm: Add support for WPCM450
2021-04-09 14:11:24 +09:30
nv_tco.c
watchdog: Replace HTTP links with HTTPS ones
2020-08-05 18:43:01 +02:00
nv_tco.h
watchdog: Replace HTTP links with HTTPS ones
2020-08-05 18:43:01 +02:00
octeon-wdt-main.c
linux-watchdog 5.14-rc1 tag
2021-07-07 12:57:46 -07:00
octeon-wdt-nmi.S
…
of_xilinx_wdt.c
watchdog: of_xilinx_wdt: Skip printing pointer value
2021-06-21 08:49:08 +02:00
omap_wdt.c
watchdog: Fix OMAP watchdog early handling
2021-10-26 20:22:51 +02:00
omap_wdt.h
…
orion_wdt.c
watchdog: Fix a typo in the file orion_wdt.c
2021-06-21 08:49:12 +02:00
pc87413_wdt.c
watchdog: fix syntactic kernel-doc issues
2021-06-21 08:49:09 +02:00
pcwd_pci.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
pcwd_usb.c
watchdog: pcwd_usb: Avoid GFP_ATOMIC where it is not needed
2020-10-14 15:02:22 +02:00
pcwd.c
isa: Make the remove callback for isa drivers return void
2021-01-26 07:42:27 +01:00
pic32-dmt.c
…
pic32-wdt.c
…
pika_wdt.c
compat_ioctl: move WDIOC handling into wdt drivers
2019-10-23 17:23:46 +02:00
pm8916_wdt.c
watchdog: pm8916_wdt: Add system sleep callbacks
2020-03-18 11:10:09 +01:00
pnx4008_wdt.c
watchdog: pnx4008_wdt: allow compile-testing
2019-09-16 22:10:05 +02:00
pretimeout_noop.c
…
pretimeout_panic.c
…
qcom-wdt.c
watchdog: qcom: Move suspend/resume to suspend_late/resume_early
2021-06-21 08:49:12 +02:00
rave-sp-wdt.c
…
rc32434_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
rdc321x_wdt.c
drivers: watchdog: rdc321x_wdt: Fix race condition bugs
2020-10-14 15:02:21 +02:00
realtek_otto_wdt.c
watchdog: Add Realtek Otto watchdog timer
2022-01-05 10:33:14 +01:00
renesas_wdt.c
watchdog: renesas_wdt: add grace period before rebooting
2021-02-07 14:41:22 +01:00
retu_wdt.c
watchdog: retu_wdt: Clean-up by using managed work init
2021-03-23 15:22:40 +01:00
riowd.c
module: remove never implemented MODULE_SUPPORTED_DEVICE
2021-03-17 13:16:18 -07:00
rn5t618_wdt.c
watchdog: rn5t618_wdt: fix module aliases
2019-12-30 15:58:29 +01:00
rt2880_wdt.c
…
rtd119x_wdt.c
…
rti_wdt.c
watchdog: rti-wdt: Make use of the helper function devm_platform_ioremap_resource()
2021-10-26 21:31:09 +02:00
rza_wdt.c
watchdog: rza_wdt: Use semicolons instead of commas
2021-10-26 21:31:10 +02:00
rzg2l_wdt.c
watchdog: Add Watchdog Timer driver for RZ/G2L
2022-01-05 10:33:15 +01:00
s3c2410_wdt.c
watchdog: s3c2410: Fix getting the optional clock
2022-01-05 10:38:37 +01:00
sa1100_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
sama5d4_wdt.c
watchdog: sama5d4_wdt: add support for sama7g5-wdt
2021-06-21 08:49:16 +02:00
sb_wdog.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
sbc60xxwdt.c
watchdog: Fix possible use-after-free in wdt_startup()
2021-06-21 08:48:59 +02:00
sbc7240_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
sbc8360.c
…
sbc_epx_c3.c
compat_ioctl: move WDIOC handling into wdt drivers
2019-10-23 17:23:46 +02:00
sbc_fitpc2_wdt.c
watchdog: sbc_fitpc2_wdt: add __user annotations
2020-12-13 16:17:41 +01:00
sbsa_gwdt.c
watchdog: sbsa: drop unneeded MODULE_ALIAS
2021-10-26 20:22:51 +02:00
sc520_wdt.c
watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff()
2021-06-21 08:49:02 +02:00
sc1200wdt.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
sch311x_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
scx200_wdt.c
watchdog: scx200_wdt: Use fallthrough pseudo-keyword
2020-08-05 18:42:54 +02:00
shwdt.c
…
simatic-ipc-wdt.c
watchdog: simatic-ipc-wdt: add new driver for Siemens Industrial PCs
2021-12-23 18:09:28 +01:00
sl28cpld_wdt.c
watchdog: sl28cpld_wdt: Constify static struct watchdog_ops
2021-08-22 10:28:09 +02:00
smsc37b787_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
softdog.c
watchdog: softdog: Add options 'soft_reboot_cmd' and 'soft_active_on_boot'
2020-08-05 18:43:02 +02:00
sp805_wdt.c
watchdog: sp805: Fix kernel doc description
2021-06-21 08:49:01 +02:00
sp5100_tco.c
watchdog: sp5100_tco: Add support for get_timeleft
2021-10-26 21:31:11 +02:00
sp5100_tco.h
watchdog: sp5100: Fix definition of EFCH_PM_DECODEEN3
2020-10-14 15:22:57 +02:00
sprd_wdt.c
watchdog: sprd: change to use usleep_range() instead of busy loop
2020-12-13 16:17:39 +01:00
st_lpc_wdt.c
…
stm32_iwdg.c
watchdog: stm32_iwdg: drop superfluous error message
2021-10-26 21:31:02 +02:00
stmp3xxx_rtc_wdt.c
…
stpmic1_wdt.c
…
sun4v_wdt.c
…
sunxi_wdt.c
watchdog: sunxi_wdt: Add support for D1
2021-10-26 21:31:08 +02:00
tegra_wdt.c
…
tqmx86_wdt.c
watchdog: tqmx86: Constify static struct watchdog_ops
2021-08-22 10:28:10 +02:00
ts72xx_wdt.c
…
ts4800_wdt.c
…
twl4030_wdt.c
…
txx9wdt.c
…
uniphier_wdt.c
…
via_wdt.c
…
visconti_wdt.c
watchdog: Add Toshiba Visconti watchdog driver
2020-10-14 15:22:58 +02:00
w83627hf_wdt.c
watchdog: w83627hf_wdt: Fix support NCT6116D
2019-12-30 15:58:23 +01:00
w83877f_wdt.c
watchdog: Fix possible use-after-free by calling del_timer_sync()
2021-06-21 08:49:03 +02:00
w83977f_wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
wafer5823wdt.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
watchdog_core.c
watchdog: introduce watchdog_dev_suspend/resume
2021-08-22 10:28:08 +02:00
watchdog_core.h
watchdog: Add hrtimer-based pretimeout feature
2021-06-21 08:49:13 +02:00
watchdog_dev.c
watchdog: Start watchdog in watchdog_set_last_hw_keepalive only if appropriate
2021-08-22 10:28:12 +02:00
watchdog_hrtimer_pretimeout.c
watchdog: Add hrtimer-based pretimeout feature
2021-06-21 08:49:13 +02:00
watchdog_pretimeout.c
watchdog: Add hrtimer-based pretimeout feature
2021-06-21 08:49:13 +02:00
watchdog_pretimeout.h
…
wd501p.h
…
wdat_wdt.c
watchdog: wdat_wdg: fix typo
2021-06-21 08:49:09 +02:00
wdrtas.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
wdt285.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
wdt977.c
watchdog: Use fallthrough pseudo-keyword
2020-08-05 18:42:53 +02:00
wdt_pci.c
watchdog: fix syntactic kernel-doc issues
2021-06-21 08:49:09 +02:00
wdt.c
watchdog: fix syntactic kernel-doc issues
2021-06-21 08:49:09 +02:00
wm831x_wdt.c
watchdog: wm831x_wdt: Remove GPIO handling
2020-03-18 11:15:24 +01:00
wm8350_wdt.c
…
xen_wdt.c
…
ziirave_wdt.c
watchdog: ziirave_wdt: Remove VERSION_FMT defines and add sysfs newlines
2021-06-21 08:49:15 +02:00