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0b445549ea
linux/drivers/watchdog
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Krzysztof Kozlowski 0b445549ea watchdog: s3c2410: Fix infinite interrupt in soft mode 
In soft (no-reboot) mode, the driver self-pings watchdog upon expiration
of an interrupt.  However the interrupt itself was not cleared thus on
first hit, the system enters infinite interrupt handling loop.

On Odroid U3 (Exynos4412), when booted with s3c2410_wdt.soft_noboot=1
argument the console is flooded:
	# killall -9 watchdog
	[   60.523760] s3c2410-wdt 10060000.watchdog: watchdog timer expired (irq)
	[   60.536744] s3c2410-wdt 10060000.watchdog: watchdog timer expired (irq)

Fix this by writing something to the WTCLRINT register to clear the
interrupt.  The register WTCLRINT however appeared in S3C6410 so a new
watchdog quirk and flavor are needed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-24 14:00:23 -08:00
..
acquirewdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
advantechwdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
alim1535_wdt.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
alim7101_wdt.c watchdog: alim7101: register restart handler with kernel restart handler 2014-09-26 00:00:32 -07:00
ar7_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
asm9260_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
aspeed_wdt.c watchdog: aspeed_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
at32ap700x_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
at91rm9200_wdt.c Merge git://www.linux-watchdog.org/linux-watchdog 2015-09-11 15:12:59 -07:00
at91sam9_wdt.c watchdog: at91sam9: get and use slow clock 2015-09-09 21:38:52 +02:00
at91sam9_wdt.h watchdog: add a driver to support SAMA5D4 watchdog timer 2015-09-09 21:38:29 +02:00
ath79_wdt.c mips: separate extable.h, switch module.h to it 2016-10-05 18:36:18 -04:00
atlas7_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
bcm47xx_wdt.c watchdog: bcm47xx_wdt: Don't validate platform data on remove 2017-02-24 14:00:23 -08:00
bcm63xx_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
bcm2835_wdt.c watchdog: bcm2835_wdt: Convert to use device managed functions and other improvements 2017-02-24 14:00:23 -08:00
bcm7038_wdt.c watchdog: constify watchdog_info structures 2017-02-24 14:00:23 -08:00
bcm_kona_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
bfin_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
booke_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
cadence_wdt.c watchdog: constify watchdog_info structures 2017-02-24 14:00:23 -08:00
coh901327_wdt.c watchdog: coh901327_wdt: Use dev variable instead of pdev->dev 2017-02-24 14:00:23 -08:00
cpu5wdt.c watchdog: delete non-required instances of include <linux/init.h> 2014-03-31 13:22:45 +02:00
cpwd.c watchdog: cpwd: remove memory allocate failure message 2016-12-16 06:53:55 -08:00
da9052_wdt.c watchdog: da9052_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
da9055_wdt.c watchdog: da9055_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
da9062_wdt.c watchdog: da9062_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
da9063_wdt.c watchdog: da9063_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
davinci_wdt.c watchdog: davinci: add support for deferred probing 2016-12-16 06:53:53 -08:00
diag288_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
digicolor_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
dw_wdt.c watchdog: dw_wdt: Use watchdog core to install restart handler 2017-02-24 14:00:23 -08:00
ebc-c384_wdt.c watchdog: ebc-c384_wdt: Utilize devm_ functions in driver probe callback 2017-02-24 14:00:23 -08:00
ep93xx_wdt.c watchdog: ep93xx_wdt: cleanup and let the core handle the heartbeat 2017-02-24 14:00:23 -08:00
eurotechwdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
f71808e_wdt.c watchdog: f71808e_wdt: Add F81866 support 2016-07-17 21:00:55 +02:00
gef_wdt.c watchdog: Fix module autoload for OF platform driver 2015-09-28 10:56:01 +02:00
gemini_wdt.c watchdog: add driver for Cortina Gemini watchdog 2017-02-24 14:00:23 -08:00
geodewdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
gpio_wdt.c watchdog: gpio_wdt: Fix missing platform_set_drvdata() in gpio_wdt_probe() 2016-07-27 10:47:43 +02:00
hpwdt.c watchdog: hpwdt: add support for iLO5 2016-10-03 08:37:41 +02:00
i6300esb.c watchdog: delete non-required instances of include <linux/init.h> 2014-03-31 13:22:45 +02:00
ib700wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
ibmasr.c watchdog: fix checkpatch warnings and error 2014-03-31 13:31:06 +02:00
ie6xx_wdt.c Watchdog: Fix parent of watchdog_devices 2015-09-09 21:39:22 +02:00
imgpdc_wdt.c watchdog: constify watchdog_info structures 2017-02-24 14:00:23 -08:00
imx2_wdt.c watchdog: imx2_wdt: add pretimeout function support 2016-10-08 10:27:30 +02:00
indydog.c watchdog: indydog: Simplify indydog_{start,stop} 2014-03-31 13:26:31 +02:00
intel_scu_watchdog.c watchdog: intel_scu_watchdog: Remove unused variable 2014-03-31 13:26:56 +02:00
intel_scu_watchdog.h
intel-mid_wdt.c watchdog: intel-mid_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
iop_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
it87_wdt.c watchdog: it87_wdt: add IT8620E ID 2016-12-16 06:53:56 -08:00
it8712f_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
iTCO_vendor_support.c
iTCO_vendor.h
iTCO_wdt.c watchdog: iTCO_wdt: Replace shutdown function with call to watchdog_stop_on_reboot 2017-02-24 14:00:23 -08:00
ixp4xx_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
jz4740_wdt.c watchdog: jz4740: Fix modular build 2016-12-16 06:53:54 -08:00
Kconfig watchdog: softdog: make pretimeout support a compile option 2017-02-24 14:00:23 -08:00
kempld_wdt.c watchdog: constify watchdog_info structures 2017-02-24 14:00:23 -08:00
ks8695_wdt.c char: make misc_deregister a void function 2015-08-05 10:35:49 -07:00
lantiq_wdt.c watchdog: update my email address 2017-02-24 14:00:23 -08:00
loongson1_wdt.c watchdog: loongson1: Add Loongson1 SoC watchdog driver 2016-12-16 06:53:55 -08:00
lpc18xx_wdt.c watchdog: constify watchdog_info structures 2017-02-24 14:00:23 -08:00
m54xx_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
machzwd.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
Makefile watchdog: zx2967: add watchdog controller driver for ZTE's zx2967 family 2017-02-24 14:00:23 -08:00
max63xx_wdt.c watchdog: max63xx: make module's license marker match the header 2016-01-31 16:51:56 +01:00
max77620_wdt.c watchdog: max77620_wdt: fix module autoload 2016-12-16 06:53:53 -08:00
mei_wdt.c Watchdog updates for v4.10 2016-12-24 11:27:45 -08:00
mena21_wdt.c watchdog: mena21_wdt: Convert to use device managed functions and other improvements 2017-02-24 14:00:23 -08:00
menf21bmc_wdt.c Watchdog: Fix parent of watchdog_devices 2015-09-09 21:39:22 +02:00
meson_gxbb_wdt.c watchdog: meson: Remove unneeded platform MODULE_ALIAS 2016-12-16 06:53:53 -08:00
meson_wdt.c watchdog: meson_wdt: Convert to use device managed functions and other improvements 2017-02-24 14:00:23 -08:00
mixcomwd.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
moxart_wdt.c watchdog: Add 'action' and 'data' parameters to restart handler callback 2016-03-01 15:36:35 +01:00
mpc8xxx_wdt.c watchdog: mpc8xxx: Remove unneeded linux/miscdevice.h include 2016-12-16 06:53:55 -08:00
mt7621_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
mtk_wdt.c watchdog: Add 'action' and 'data' parameters to restart handler callback 2016-03-01 15:36:35 +01:00
mtx-1_wdt.c watchdog: delete non-required instances of include <linux/init.h> 2014-03-31 13:22:45 +02:00
mv64x60_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
ni903x_wdt.c watchdog: ni903x_wdt: Add NI 903x/913x watchdog driver 2016-03-01 16:25:39 +01:00
nic7018_wdt.c watchdog: nic7018_wdt: Add NIC7018 watchdog driver 2017-02-24 14:00:23 -08:00
nuc900_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
nv_tco.c watchdog: add support for MCP78S chipset in nv_tco 2016-07-17 21:04:13 +02:00
nv_tco.h
octeon-wdt-main.c Watchdog updates for v4.10 2016-12-24 11:27:45 -08:00
octeon-wdt-nmi.S
of_xilinx_wdt.c watchdog: xilinx: Add clock support 2016-09-23 22:04:09 +02:00
omap_wdt.c watchdog: omap: don't disable the timer when it should be enabled early 2015-12-27 21:09:40 +01:00
omap_wdt.h watchdog: omap_wdt: implement get_timeleft 2015-06-22 15:54:35 +02:00
orion_wdt.c watchdog: orion: fix spelling mistake: "harcoded" -> "hardcoded" 2017-02-24 14:00:23 -08:00
pc87413_wdt.c watchdog: fix checkpatch warnings and error 2014-03-31 13:31:06 +02:00
pcwd_pci.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
pcwd_usb.c watchdog: pcwd_usb: don't print error when allocating urb fails 2016-09-23 08:43:06 +02:00
pcwd.c watchdog: pcwd: Utilize the module_isa_driver macro 2016-07-17 20:59:23 +02:00
pic32-dmt.c watchdog: pic32-dmt: Remove .owner field for driver 2016-07-25 12:02:32 +02:00
pic32-wdt.c watchdog: pic32-wdt: Fix return value check in pic32_wdt_drv_probe() 2016-07-25 12:02:43 +02:00
pika_wdt.c watchdog: pika_wdt: add __ro_after_init to ident 2017-02-24 14:00:23 -08:00
pnx833x_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
pnx4008_wdt.c watchdog: pnx4008: restart: support "cmd" from userspace 2016-03-16 21:09:42 +01:00
pretimeout_noop.c watchdog: pretimeout: add noop pretimeout governor 2016-10-08 10:27:13 +02:00
pretimeout_panic.c watchdog: pretimeout: add panic pretimeout governor 2016-10-08 10:27:17 +02:00
qcom-wdt.c watchdog: qcom: fix kernel panic due to external abort on non-linefetch 2016-12-16 06:53:54 -08:00
rc32434_wdt.c watchdog: rc32434_wdt: fix ioctl error handling 2016-03-01 15:29:42 +01:00
rdc321x_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
renesas_wdt.c watchdog: renesas-wdt: add driver 2016-05-14 18:15:40 +02:00
retu_wdt.c Watchdog: Fix parent of watchdog_devices 2015-09-09 21:39:22 +02:00
riowd.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
rn5t618_wdt.c watchdog: constify watchdog_info structures 2017-02-24 14:00:23 -08:00
rt2880_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
s3c2410_wdt.c watchdog: s3c2410: Fix infinite interrupt in soft mode 2017-02-24 14:00:23 -08:00
sa1100_wdt.c watchdog: sa11x0/pxa: fix error path of driver initialization 2017-02-24 14:00:23 -08:00
sama5d4_wdt.c watchdog: sama5d4: Implement resume hook 2017-02-24 14:00:23 -08:00
sb_wdog.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc60xxwdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc7240_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc8360.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc_epx_c3.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc_fitpc2_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbsa_gwdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
sc520_wdt.c watchdog: sc520_wdt: Remove unused variable 2014-03-31 13:27:34 +02:00
sc1200wdt.c sc1200_wdt: Fix oops 2013-12-10 08:48:15 +01:00
sch311x_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
scx200_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
shwdt.c watchdog: shwdt: Use setup_timer() 2016-05-14 18:25:56 +02:00
sirfsoc_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
smsc37b787_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
softdog.c watchdog: softdog: make pretimeout support a compile option 2017-02-24 14:00:23 -08:00
sp805_wdt.c watchdog: sp805: ping fails to abort wdt reset 2016-01-31 16:52:08 +01:00
sp5100_tco.c watchdog: sp5100_tco: properly check for new register layouts 2016-05-14 16:16:04 +02:00
sp5100_tco.h watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2 2013-03-22 23:21:55 +01:00
st_lpc_wdt.c watchdog: st_wdt: Remove support for obsolete platforms 2016-09-24 08:59:49 +02:00
stmp3xxx_rtc_wdt.c watchdog: stmp3xxx: Remove unused variables 2016-01-11 21:51:28 +01:00
sun4v_wdt.c watchdog: constify watchdog_ops structures 2017-02-24 14:00:23 -08:00
sunxi_wdt.c watchdog: sunxi_wdt: Convert to use device managed functions and other improvements 2017-02-24 14:00:23 -08:00
tangox_wdt.c watchdog: tangox: Use watchdog core to install restart handler 2017-02-24 14:00:23 -08:00
tegra_wdt.c watchdog: tegra_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
ts72xx_wdt.c watchdog: ts72xx_wdt: convert driver to watchdog core 2017-02-24 14:00:23 -08:00
ts4800_wdt.c watchdog: ts4800: add driver for TS-4800 watchdog 2015-12-28 22:29:35 +01:00
twl4030_wdt.c Watchdog: Fix parent of watchdog_devices 2015-09-09 21:39:22 +02:00
txx9wdt.c watchdog: txx9wdt: Add missing clock (un)prepare calls for CCF 2016-09-23 22:36:32 +02:00
ux500_wdt.c Watchdog: Fix parent of watchdog_devices 2015-09-09 21:39:22 +02:00
via_wdt.c Watchdog: Fix parent of watchdog_devices 2015-09-09 21:39:22 +02:00
w83627hf_wdt.c watchdog: constify watchdog_info structures 2017-02-24 14:00:23 -08:00
w83877f_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
w83977f_wdt.c watchdog: w83977f_wdt: underflow in wdt_set_timeout() 2015-11-23 08:59:30 +01:00
wafer5823wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
watchdog_core.c watchdog: core: Fix devres_alloc() allocation size 2016-09-23 08:37:14 +02:00
watchdog_core.h watchdog: Create watchdog device in watchdog_dev.c 2015-12-29 20:36:01 +01:00
watchdog_dev.c watchdog: Introduce watchdog_stop_on_unregister helper 2017-02-24 14:00:23 -08:00
watchdog_pretimeout.c watchdog: pretimeout: add pretimeout_available_governors attribute 2016-10-08 10:27:24 +02:00
watchdog_pretimeout.h watchdog: pretimeout: add pretimeout_available_governors attribute 2016-10-08 10:27:24 +02:00
wd501p.h
wdat_wdt.c watchdog: wdat_wdt: Ping the watchdog on resume 2016-10-21 01:28:33 +02:00
wdrtas.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wdt285.c watchdog: wdt285: Fix variable type 2014-03-31 13:28:20 +02:00
wdt977.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wdt_pci.c watchdog: delete non-required instances of include <linux/init.h> 2014-03-31 13:22:45 +02:00
wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wm831x_wdt.c watchdog: wm831x_wdt: Convert to use device managed functions 2017-02-24 14:00:23 -08:00
wm8350_wdt.c Watchdog: Fix parent of watchdog_devices 2015-09-09 21:39:22 +02:00
xen_wdt.c watchdog: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
ziirave_wdt.c watchdog: ziirave_wdt: Add support to upload the firmware. 2016-09-23 22:34:24 +02:00
zx2967_wdt.c watchdog: zx2967: add watchdog controller driver for ZTE's zx2967 family 2017-02-24 14:00:23 -08:00