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Linus Walleij deedc3e1e9 watchdog: ixp4xx: Make sure restart always works 
[ Upstream commit b4075ecfe348a44209534c75ad72392c63a489a6 ]

The IXP4xx watchdog in early "A0" silicon is unreliable and
cannot be registered, however for some systems such as the
USRobotics USR8200 the watchdog is the only restart option,
so implement a "dummy" watchdog that can only support restart
in this case.

Fixes: 1aea522809e6 ("watchdog: ixp4xx: Implement restart")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230926-ixp4xx-wdt-restart-v2-1-15cf4639b423@linaro.org
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>
2023-11-20 11:59:34 +01:00
..
acquirewdt.c
watchdog: acquirewdt: Convert to platform remove callback returning void
2023-04-22 12:53:40 +02:00
advantech_ec_wdt.c
watchdog: Add Advantech EC watchdog driver
2022-11-19 15:30:37 +01:00
advantechwdt.c
watchdog: advantechwdt: Convert to platform remove callback returning void
2023-04-22 12:53:40 +02:00
alim1535_wdt.c
…
alim7101_wdt.c
…
apple_wdt.c
watchdog: apple: Use devm_clk_get_enabled() helper
2023-02-12 15:32:53 +01:00
ar7_wdt.c
watchdog: ar7: Convert to platform remove callback returning void
2023-04-22 12:53:41 +02:00
arm_smc_wdt.c
…
armada_37xx_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
asm9260_wdt.c
…
aspeed_wdt.c
watchdog: aspeed: Drop of_match_ptr for ID table
2023-04-22 12:53:59 +02:00
at91rm9200_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
at91sam9_wdt.c
watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path
2023-02-18 15:11:35 +01:00
at91sam9_wdt.h
…
ath79_wdt.c
watchdog: ath79: Convert to platform remove callback returning void
2023-04-22 12:53:42 +02:00
bcm47xx_wdt.c
watchdog: bcm47xx: Simplify using devm_watchdog_register_device()
2023-04-22 12:53:54 +02:00
bcm2835_wdt.c
watchdog: bcm2835: Convert to platform remove callback returning void
2023-04-22 12:53:42 +02:00
bcm7038_wdt.c
watchdog: bcm7038: Use devm_clk_get_enabled() helper
2023-02-12 15:32:51 +01:00
bcm_kona_wdt.c
watchdog: bcm_kona: Convert to platform remove callback returning void
2023-04-22 12:53:43 +02:00
bd9576_wdt.c
watchdog: bd9576_wdt: switch to using devm_fwnode_gpiod_get()
2022-10-02 12:55:30 +02:00
booke_wdt.c
watchdog: booke_wdt: Replace PPC_FSL_BOOK3E by PPC_E500
2022-09-26 23:00:13 +10:00
cadence_wdt.c
watchdog: cadence: Use devm_clk_get_enabled() helper
2023-02-12 15:32:49 +01:00
cpu5wdt.c
module: remove never implemented MODULE_SUPPORTED_DEVICE
2021-03-17 13:16:18 -07:00
cpwd.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
da9052_wdt.c
…
da9055_wdt.c
…
da9062_wdt.c
watchdog: da9062: da9063: use unlocked xfer function in restart
2023-02-18 15:11:30 +01:00
da9063_wdt.c
watchdog: da9062: da9063: use unlocked xfer function in restart
2023-02-18 15:11:30 +01:00
davinci_wdt.c
watchdog: davinci: Use devm_clk_get_enabled() helper
2023-02-12 15:32:50 +01:00
db8500_wdt.c
watchdog: at91rm9200: Remove #ifdef guards for PM related functions
2022-11-19 15:30:38 +01:00
diag288_wdt.c
watchdog: diag288_wdt: unify lpar and zvm diag288 helpers
2023-02-06 15:14:10 +01:00
digicolor_wdt.c
…
dw_wdt.c
watchdog: dw_wdt: Simplify clk management
2023-04-29 08:08:41 +02:00
ebc-c384_wdt.c
…
ep93xx_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
eurotechwdt.c
watchdog: eurotechwdt: Remove redundant word in comments
2022-10-02 12:55:38 +02:00
exar_wdt.c
drivers: watchdog: exar_wdt.c fix use after free
2022-10-19 19:49:47 +02:00
f71808e_wdt.c
watchdog: f71808e_wdt: Add check for platform_driver_register
2022-07-23 14:18:46 +02:00
ftwdt010_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
gef_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
geodewdt.c
watchdog: geodewdt: Convert to platform remove callback returning void
2023-04-22 12:53:44 +02:00
gpio_wdt.c
…
gxp-wdt.c
watchdog: gxp: Add missing MODULE_LICENSE
2022-06-09 12:20:34 +02:00
hpwdt.c
watchdog/hpwdt: Include nmi.h only if CONFIG_HPWDT_NMI_DECODING
2022-10-02 12:55:32 +02:00
i6300esb.c
…
ib700wdt.c
watchdog: ib700wdt: Convert to platform remove callback returning void
2023-04-22 12:53:45 +02:00
ibmasr.c
watchdog: ibmasr: Replace GPL license notice with SPDX identifier
2023-06-26 14:30:05 +02:00
ie6xx_wdt.c
watchdog: ie6xx: Convert to platform remove callback returning void
2023-04-22 12:53:46 +02:00
imgpdc_wdt.c
watchdog: imgpdc: Use devm_clk_get_enabled() helper
2023-02-12 15:32:48 +01:00
imx2_wdt.c
watchdog: imx2_wdt: Improve dev_crit() message
2023-08-25 16:19:13 +02:00
imx7ulp_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
imx_sc_wdt.c
watchdog: imx_sc_wdt: fix pretimeout
2021-06-21 08:49:14 +02:00
indydog.c
…
intel-mid_wdt.c
watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load
2023-08-19 17:36:19 +02:00
it87_wdt.c
watchdog: it87_wdt: remove useless function
2021-06-21 08:49:04 +02:00
it8712f_wdt.c
…
iTCO_vendor_support.c
…
iTCO_vendor.h
…
iTCO_wdt.c
watchdog: iTCO_wdt: Report firmware_version
2023-02-18 15:11:31 +01:00
ixp4xx_wdt.c
watchdog: ixp4xx: Make sure restart always works
2023-11-20 11:59:34 +01:00
jz4740_wdt.c
watchdog: jz4740: Fix return value check in jz4740_wdt_probe()
2021-06-21 08:49:11 +02:00
Kconfig
linux-watchdog 6.6-rc1 tag
2023-09-06 09:19:12 -07:00
keembay_wdt.c
watchdog: keembay: Typo corrections and other blank operations
2021-06-21 08:48:57 +02:00
kempld_wdt.c
watchdog: kempld: Remove #ifdef guards for PM related functions
2022-11-19 15:30:39 +01:00
lantiq_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
loongson1_wdt.c
watchdog: Enable COMPILE_TEST for more drivers
2023-08-13 14:29:51 +02:00
lpc18xx_wdt.c
watchdog: lpc18xx: Convert to platform remove callback returning void
2023-04-22 12:53:46 +02:00
m54xx_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
machzwd.c
watchdog: Fix fall-through warnings for Clang
2021-05-17 18:56:23 -05:00
Makefile
Watchdog: Add marvell GTI watchdog driver
2023-08-13 14:29:49 +02:00
marvell_gti_wdt.c
watchdog: marvell_gti_wdt: Fix error code in probe()
2023-11-20 11:59:34 +01:00
max63xx_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
max77620_wdt.c
watchdog: max77620: update Luca Ceresoli's e-mail address
2022-07-23 14:21:23 +02:00
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
watchdog: menz069_wdt: Remove redundant initialization owner in men_z069_driver
2023-08-13 14:29:48 +02:00
meson_gxbb_wdt.c
watchdog: Add support for Amlogic-T7 SoCs
2023-08-25 16:19:15 +02:00
meson_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
mixcomwd.c
…
mlx_wdt.c
watchdog: mlx-wdt: Use regmap_write_bits()
2021-10-26 21:31:10 +02:00
moxart_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
mpc8xxx_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +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
watchdog: mt7621-wdt: avoid ralink architecture dependent code
2023-03-02 06:51:29 +01:00
mtk_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
mtx-1_wdt.c
watchdog: mtx-1: Convert to platform remove callback returning void
2023-04-22 12:53:47 +02:00
ni903x_wdt.c
ACPI: make remove callback of ACPI driver void
2022-11-23 19:11:22 +01:00
nic7018_wdt.c
watchdog: nic7018: Convert to platform remove callback returning void
2023-04-22 12:53:47 +02:00
npcm_wdt.c
watchdog: npcm: Enable clock if provided
2022-10-02 12:55:41 +02:00
nv_tco.c
watchdog: nv_tco: Convert to platform remove callback returning void
2023-04-22 12:53:47 +02:00
nv_tco.h
…
octeon-wdt-main.c
linux-watchdog 5.14-rc1 tag
2021-07-07 12:57:46 -07:00
octeon-wdt-nmi.S
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
of_xilinx_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
omap_wdt.c
watchdog: omap: Convert to platform remove callback returning void
2023-04-22 12:53:48 +02:00
omap_wdt.h
…
orion_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
pc87413_wdt.c
watchdog:Fix typo in comment
2022-07-23 14:21:28 +02:00
pcwd_pci.c
…
pcwd_usb.c
watchdog: pcwd_usb: Fix attempting to access uninitialized memory
2023-02-18 15:11:39 +01:00
pcwd.c
…
pic32-dmt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
pic32-wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
pika_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
pm8916_wdt.c
watchdog: pm8916_wdt: Remove redundant of_match_ptr()
2023-08-19 17:36:18 +02:00
pnx4008_wdt.c
watchdog: pnx4008: Use devm_clk_get_enabled() helper
2023-02-12 15:32:46 +01:00
pretimeout_noop.c
…
pretimeout_panic.c
…
pseries-wdt.c
watchdog/pseries-wdt: initial support for H_WATCHDOG-based watchdog timers
2022-07-20 21:57:39 +10:00
qcom-wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
rave-sp-wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
rc32434_wdt.c
watchdog: rc32434: Convert to platform remove callback returning void
2023-04-22 12:53:48 +02:00
rdc321x_wdt.c
watchdog: rdc321x: Convert to platform remove callback returning void
2023-04-22 12:53:49 +02:00
realtek_otto_wdt.c
watchdog: realtek_otto: Use devm_clk_get_enabled() helper
2023-02-12 15:32:46 +01:00
renesas_wdt.c
watchdog: renesas: Convert to platform remove callback returning void
2023-04-22 12:53:50 +02:00
retu_wdt.c
watchdog: retu_wdt: Clean-up by using managed work init
2021-03-23 15:22:40 +01:00
riowd.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
rn5t618_wdt.c
watchdog: rn5t618: Simplify using devm_watchdog_register_device()
2023-04-22 12:53:54 +02:00
rt2880_wdt.c
watchdog: rt2880-wdt: prefer unsigned int over unsigned
2023-04-22 12:53:57 +02:00
rtd119x_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
rti_wdt.c
watchdog:rit_wdt: Add support for WDIOF_CARDRESET
2023-08-19 17:14:36 +02:00
rza_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
rzg2l_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
rzn1_wdt.c
watchdog: rzn1: Use devm_clk_get_enabled() helper
2023-02-12 15:32:52 +01:00
s3c2410_wdt.c
watchdog: s3c2410: Fix potential deadlock on &wdt->lock
2023-08-19 17:14:37 +02:00
sa1100_wdt.c
watchdog: sa1100: Convert to platform remove callback returning void
2023-04-22 12:53:51 +02:00
sama5d4_wdt.c
watchdog: sama5d4: readout initial state
2023-08-19 17:36:20 +02:00
sb_wdog.c
…
sbc60xxwdt.c
watchdog: Fix possible use-after-free in wdt_startup()
2021-06-21 08:48:59 +02:00
sbc7240_wdt.c
…
sbc8360.c
…
sbc_epx_c3.c
…
sbc_fitpc2_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
sbsa_gwdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +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
…
sch311x_wdt.c
watchdog: sch311x: Convert to platform remove callback returning void
2023-04-22 12:53:52 +02:00
scx200_wdt.c
…
shwdt.c
watchdog: shwdt: Convert to platform remove callback returning void
2023-04-22 12:53:52 +02:00
simatic-ipc-wdt.c
watchdog: simatic-ipc-wdt: make IO region access of one model muxed
2023-07-14 12:45:01 +02:00
sl28cpld_wdt.c
watchdog: sl28cpld_wdt: Constify static struct watchdog_ops
2021-08-22 10:28:09 +02:00
smsc37b787_wdt.c
…
softdog.c
…
sp805_wdt.c
watchdog: sp805_wdt: fix spelling typo in comment
2022-10-19 19:49:46 +02:00
sp5100_tco.c
watchdog: sp5100_tco: support Hygon FCH/SCH (Server Controller Hub)
2023-06-26 14:30:07 +02:00
sp5100_tco.h
Watchdog: sp5100_tco: Enable Family 17h+ CPUs
2022-03-27 17:04:33 +02:00
sprd_wdt.c
…
st_lpc_wdt.c
watchdog: st_lpc: Convert to platform remove callback returning void
2023-04-22 12:53:53 +02:00
starfive-wdt.c
watchdog: starfive: Remove #ifdef guards for PM related functions
2023-08-19 17:14:37 +02:00
stm32_iwdg.c
watchdog: stm32: Drop unnecessary of_match_ptr()
2023-08-25 16:19:12 +02:00
stmp3xxx_rtc_wdt.c
watchdog: stmp3xxx_rtc: Convert to platform remove callback returning void
2023-04-22 12:53:53 +02:00
stpmic1_wdt.c
…
sun4v_wdt.c
…
sunplus_wdt.c
watchdog: Add watchdog driver for Sunplus SP7021
2022-05-08 10:34:05 +02:00
sunxi_wdt.c
watchdog: Explicitly include correct DT includes
2023-08-13 14:29:49 +02:00
tegra_wdt.c
watchdog: tegra_wdt: Remove #ifdef guards for PM related functions
2022-07-23 14:21:27 +02:00
tqmx86_wdt.c
watchdog: tqmx86: Constify static struct watchdog_ops
2021-08-22 10:28:10 +02:00
ts72xx_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
ts4800_wdt.c
watchdog: Convert GPL 2.0 notice to SPDX identifier
2023-06-26 14:30:04 +02:00
twl4030_wdt.c
watchdog: twl4030: Remove #ifdef guards for PM related functions
2022-11-19 15:30:38 +01:00
txx9wdt.c
…
uniphier_wdt.c
…
via_wdt.c
…
visconti_wdt.c
watchdog: visconti: Use devm_clk_get_enabled() helper
2023-02-12 15:32:53 +01:00
w83627hf_wdt.c
watchdog: w83627hf_wdt: add bootstatus support
2022-10-02 12:55:34 +02:00
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: w83977f_wdt: Fix comment typo
2022-10-02 12:55:39 +02:00
wafer5823wdt.c
…
watchdog_core.c
watchdog: core: stop watchdog when executing poweroff command
2023-08-19 17:36:19 +02:00
watchdog_core.h
watchdog: Add hrtimer-based pretimeout feature
2021-06-21 08:49:13 +02:00
watchdog_dev.c
linux-watchdog 6.4-rc1 tag
2023-05-04 18:33:56 -07:00
watchdog_hrtimer_pretimeout.c
watchdog: Add hrtimer-based pretimeout feature
2021-06-21 08:49:13 +02:00
watchdog_pretimeout.c
watchdog: avoid usage of iterator after loop
2023-04-22 12:54:00 +02:00
watchdog_pretimeout.h
…
wd501p.h
…
wdat_wdt.c
watchdog: wdat_wdt: Avoid unimplemented get_timeleft
2023-02-12 15:32:53 +01:00
wdrtas.c
…
wdt285.c
ARM: footbridge: remove CATS
2023-01-10 23:10:27 +01:00
wdt977.c
…
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
…
wm8350_wdt.c
watchdog: wm8350: Simplify using devm_watchdog_register_device()
2023-04-22 12:53:55 +02:00
xen_wdt.c
…
xilinx_wwdt.c
watchdog: xilinx_wwdt: Use div_u64() in xilinx_wwdt_start()
2023-08-19 17:36:18 +02:00
ziirave_wdt.c
watchdog: ziirave_wdt: Switch i2c driver back to use .probe()
2023-06-26 14:30:05 +02:00