Convert those documents and prepare them to be part of the kernel
API book, as most of the stuff there are related to the
Kernel interfaces.
Still, in the future, it would make sense to split the docs,
as some of the stuff is clearly focused on sysadmin tasks.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This allows setting a default value for the watchdog.open_timeout
commandline parameter via Kconfig.
Some BSPs allow remote updating of the kernel image and root file
system, but updating the bootloader requires physical access. Hence, if
one has a firmware update that requires relaxing the
watchdog.open_timeout a little, the value used must be baked into the
kernel image itself and cannot come from the u-boot environment via the
kernel command line.
Being able to set the initial value in .config doesn't change the fact
that the value on the command line, if present, takes precedence, and is
of course immensely useful for development purposes while one has
console acccess, as well as usable in the cases where one can make a
permanent update of the kernel command line.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
i.MX system controller watchdog can support pretimeout IRQ
via general SCU MU IRQ, it depends on IMX_SCU and driver MUST
be probed after SCU IPC ready, then enable corresponding SCU
IRQ group and register SCU IRQ notifier, when watchdog pretimeout
IRQ fires, SCU MU IRQ will be handled and watchdog pretimeout
notifier will be called to handle the event.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since commit "watchdog: Use depends instead of select for pretimeout
governors", it was possible to enable pretimeout governors but keep all
of them disabled. Doing this results in the following build failure.
../drivers/watchdog/watchdog_pretimeout.c:
In function ‘watchdog_register_governor’:
../drivers/watchdog/watchdog_pretimeout.c:139:26: error:
‘WATCHDOG_PRETIMEOUT_DEFAULT_GOV’ undeclared
if (!strncmp(gov->name, WATCHDOG_PRETIMEOUT_DEFAULT_GOV,
Since it does not make sense to enable pretimeout support but disable
all pretimeout governors, enforce that at least one of them is always
enabled.
Fixes: f627ac0e12 ("watchdog: Use depends instead of select for pretimeout governors")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
HPWDT_NMI_DECODING depends on HP_WATCHDOG and should be next to it.
This helps menuconfig identify HPWDT_NMI_DECODING as depending on
HP_WATCHDOG.
BCM_KONA_WDT_DEBUG depends on BCM_KONA_WDT which depends on COMPILE_TEST.
Enabling BCM_KONA_WDT_DEBUG without BCM_KONA_WDT does not make sense,
so drop the COMPILE_TEST dependency from it. This also improves
menuconfig, which now properly associates BCM_KONA_WDT_DEBUG with
BCM_KONA_WDT.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Most of the NPCM7XX drivers can be built as modules.
The NPCM7XX watchdog driver code supports building it as
module, but its configuration option is set to bool.
Make itr tristate to actually support modular builds.
This improves consistency with other drivers for the
same platform and enables including the driver in multi-
platform configurations.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Under some circumstances it may be desirable to configure
the watchdog core as module. Enable it.
As part of this change, mark pretimeout governors as depending
on the watchdog core. This is necessary to prevent governors
from being built into the kernel if the watchdog core is built
as module.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Watchdog pretimeout configuration was at the end of the Kconfig
file, after individual watchdog drivers, and thus easy to miss.
Move it right after basic watchdog option declarations.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Watchdog pretimeout governors were enabled from the default governor
selection using "select". As a result, the default governor was always
built into the kernel, even if no watchdog driver was loaded. By using
"depends on" instead of "select", we are in better control, and the
governors can all be built as modules. At the same time, set the default
configuration option for pretimeout governors to match WATCHDOG_CORE
(meaning all pretimeout governors are by default enabled if pretimeout
support is enabled).
The practical impact of this change is minimal. Previously, selecting
a default governor automatically enabled that governor. Now, a default
governor can only be selected if that governor has been enabled.
Consequently, the order of governor selection is now reversed: The
governor selection is now first, followed by default governor selection.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller
inside, the system controller is in charge of controlling power,
clock and watchdog etc..
This patch adds i.MX system controller watchdog driver support,
watchdog operation needs to be done in secure EL3 mode via
ARM-Trusted-Firmware, using SMC call, CPU will trap into
ARM-Trusted-Firmware and then it will request system controller
to do watchdog operation via IPC.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Initial support for watchdog block included in ROHM BD70528
power management IC.
Configurations for low power states are still to be checked.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
CONFIG_WATCHDOG_PRETIMEOUT_GOV build symbol adds watchdog_pretimeout.o
object to watchdog.o, the latter is compiled only if CONFIG_WATCHDOG_CORE
is selected, so it rightfully makes sense to add it as a dependency.
The change fixes the next compilation errors, if CONFIG_WATCHDOG_CORE=n
and CONFIG_WATCHDOG_PRETIMEOUT_GOV=y are selected:
drivers/watchdog/pretimeout_noop.o: In function `watchdog_gov_noop_register':
drivers/watchdog/pretimeout_noop.c:35: undefined reference to `watchdog_register_governor'
drivers/watchdog/pretimeout_noop.o: In function `watchdog_gov_noop_unregister':
drivers/watchdog/pretimeout_noop.c:40: undefined reference to `watchdog_unregister_governor'
drivers/watchdog/pretimeout_panic.o: In function `watchdog_gov_panic_register':
drivers/watchdog/pretimeout_panic.c:35: undefined reference to `watchdog_register_governor'
drivers/watchdog/pretimeout_panic.o: In function `watchdog_gov_panic_unregister':
drivers/watchdog/pretimeout_panic.c:40: undefined reference to `watchdog_unregister_governor'
Reported-by: Kuo, Hsuan-Chi <hckuo2@illinois.edu>
Fixes: ff84136cb6 ("watchdog: add watchdog pretimeout governor framework")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Introduce watchdog driver for a various range of Mellanox Ethernet and
Infiniband switch systems.
Watchdog driver for Mellanox watchdog devices, implemented in
programmable logic device.
Main and auxiliary watchdog devices can exist on the same system.
There are several actions that can be defined in the watchdog:
system reset, start fans on full speed and increase a counter.
The last 2 actions are performed without a system reset.
Actions without reset are provided for auxiliary watchdog devices,
which is optional.
Access to HW registers is performed through generic
regmap interface.
There are 2 types of HW watchdog implementations.
Type 1: actual HW timeout can be defined as power of 2 msec.
e.g. timeout 20 sec will be rounded up to 32768 msec.;
maximum timeout period is 32 sec (32768 msec.);
get time-left isn't supported
Type 2: actual HW timeout is defined in sec. and it's the same as
user-defined timeout;
maximum timeout is 255 sec;
get time-left is supported;
Watchdog driver is probed from the common mlx_platform driver.
Signed-off-by: Michael Shych <michaelsh@mellanox.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Update documentation relating to HPWDT_NMI_DECODING to reflect its
current usage.
Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
The STPMIC1 PMIC embeds a watchdog which is disabled by default. As soon
as the watchdog is started, it must be refreshed periodically otherwise
the PMIC goes off.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Some TQ-Systems ComExpress modules have an IO controller with a
watchdog timer.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
The PM816 module is a versatile PMIC with many diverse functions
integrated, including, a watchdog.
This watchdog is subcomponent of the PON (Power On) peripheral,
in the same way as pwrkey/resin buttons.
It works with two timers (2-stages), the first one generates an
IRQ to the main SoC (APQ8016/MSM8916), the second one performs
the reset.
This driver expects the following device hierarchy:
[pm8916]->[pm8916-pon]->[pm8916-wdt]
It uses the pm8916 regmap to access PM8916 registers.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Modify Nuvoton watchdog Kconfig default supported architecture
name to ARCH_NPCM7XX because ARCH_NPCM750 architecture name
is not supported.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This adds support for the CPU watchdog found on Marvell Armada 37xx
SoCs.
There are 4 counters which can be set as CPU watchdog counters.
This driver uses the second counter (ID 1, counting from 0) as watchdog
counter, and first counter (ID 0) to implement pinging on the second
counter without the need to disable it.
Since counters IDs 2 and 3 are enabled already before even U-Boot
starts, this driver does not use them at all, for example by adding a
device tree property for counter selection.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Instead of doing the ioctl handling manually just use register a
watchdog_device and let the watchdog framework do the ioctl handling.
This also removes the ltq_wdt_bootstatus_set typedef and replaces it
with a structure providing the chip specific functions pointer.
The watchdog_init_timeout() function is now used and the initial timeout
can be provided in device tree.
If the watchdog was already activated it will not be stopped any more,
but the settings from the driver will be used and the watchdog subsystem
will take care.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Currently menz69_wdt.ko has a dependency on MCB or COMPILE_TEST. But
it actually needs symbols exported by MCB so the || COMPILE_TEST is
wrong.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Add a driver for the MEN 16z069 Watchdog and Reset Controller IP-Core.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Michael Moese <mmoese@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
New drivers:
- Nintendo Wii GameCube GPIO, known as "Hollywood"
- Raspberry Pi mailbox service GPIO expander
- Spreadtrum main SC9860 SoC and IEC GPIO controllers.
Improvements:
- Implemented .get_multiple() callback for most of the
high-performance industrial GPIO cards for the ISA bus.
- ISA GPIO drivers now select the ISA_BUS_API instead of
depending on it. This is merged with the same pattern
for all the ISA drivers and some other Kconfig cleanups
related to this.
Cleanup:
- Delete the TZ1090 GPIO drivers following the deletion of
this SoC from the ARM tree.
- Move the documentation over to driver-api to conform with
the rest of the kernel documentation build.
- Continue to make the GPIO drivers include only
<linux/gpio/driver.h> and not the too broad <linux/gpio.h>
that we want to get rid of.
- Managed to remove VLA allocation from two drivers pending
more fixes in this area for the next merge window.
- Misc janitorial fixes.
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Merge tag 'gpio-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.17 kernel cycle:
New drivers:
- Nintendo Wii GameCube GPIO, known as "Hollywood"
- Raspberry Pi mailbox service GPIO expander
- Spreadtrum main SC9860 SoC and IEC GPIO controllers.
Improvements:
- Implemented .get_multiple() callback for most of the
high-performance industrial GPIO cards for the ISA bus.
- ISA GPIO drivers now select the ISA_BUS_API instead of depending on
it. This is merged with the same pattern for all the ISA drivers
and some other Kconfig cleanups related to this.
Cleanup:
- Delete the TZ1090 GPIO drivers following the deletion of this SoC
from the ARM tree.
- Move the documentation over to driver-api to conform with the rest
of the kernel documentation build.
- Continue to make the GPIO drivers include only
<linux/gpio/driver.h> and not the too broad <linux/gpio.h> that we
want to get rid of.
- Managed to remove VLA allocation from two drivers pending more
fixes in this area for the next merge window.
- Misc janitorial fixes"
* tag 'gpio-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
gpio: Add Spreadtrum PMIC EIC driver support
gpio: Add Spreadtrum EIC driver support
dt-bindings: gpio: Add Spreadtrum EIC controller documentation
gpio: ath79: Fix potential NULL dereference in ath79_gpio_probe()
pinctrl: qcom: Don't allow protected pins to be requested
gpiolib: Support 'gpio-reserved-ranges' property
gpiolib: Change bitmap allocation to kmalloc_array
gpiolib: Extract mask allocation into subroutine
dt-bindings: gpio: Add a gpio-reserved-ranges property
gpio: mockup: fix a potential crash when creating debugfs entries
gpio: pca953x: add compatibility for pcal6524 and pcal9555a
gpio: dwapb: Add support for a bus clock
gpio: Remove VLA from xra1403 driver
gpio: Remove VLA from MAX3191X driver
gpio: ws16c48: Implement get_multiple callback
gpio: gpio-mm: Implement get_multiple callback
gpio: 104-idi-48: Implement get_multiple callback
gpio: 104-dio-48e: Implement get_multiple callback
gpio: pcie-idio-24: Implement get_multiple/set_multiple callbacks
gpio: pci-idio-16: Implement get_multiple callback
...
The blackfin architecture is getting removed, so this driver has
become obsolete.
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Aaron Wu <aaron.wu@analog.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A lot of Kconfig symbols have architecture specific dependencies.
In those cases that depend on architectures we have already removed,
they can be omitted.
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The Nuvoton NPCM750 has a watchdog implemented as a single register
inside the timer peripheral.
This driver exposes that watchdog as a standard watchdog device with
coarse timeout intervals, limited by the combination of prescaler and
counter that is provided by the hardware. The calculation is taken from
the Nuvoton vendor tree.
The watchdog is left running if a bootloader had it going. The rate is
the one specified in the device tree, or the default value (obtained
from the datasheet).
There is a pre-timeout IRQ that is wired up. This timeout always occurs
1024 clocks before the timeout.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Merge tag 'v4.16-rc5' into devel
Linux 4.16-rc5 merged into the GPIO devel branch to resolve
a nasty conflict between fixes and devel in the RCAR driver.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
These patches remove the metag architecture and tightly dependent
drivers from the kernel. With the 4.16 kernel the ancient gcc 4.2.4
based metag toolchain we have been using is hitting compiler bugs, so
now seems a good time to drop it altogether.
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Merge tag 'metag_remove_2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jhogan/metag into asm-generic
Remove metag architecture
These patches remove the metag architecture and tightly dependent
drivers from the kernel. With the 4.16 kernel the ancient gcc 4.2.4
based metag toolchain we have been using is hitting compiler bugs, so
now seems a good time to drop it altogether.
* tag 'metag_remove_2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
i2c: img-scb: Drop METAG dependency
media: img-ir: Drop METAG dependency
watchdog: imgpdc: Drop METAG dependency
MAINTAINERS/CREDITS: Drop METAG ARCHITECTURE
tty: Remove metag DA TTY and console driver
clocksource: Remove metag generic timer driver
irqchip: Remove metag irqchip drivers
Drop a bunch of metag references
docs: Remove remaining references to metag
docs: Remove metag docs
metag: Remove arch/metag/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Now that arch/metag/ has been removed, remove the METAG dependency from
the IMG IR device driver. The hardware is also present on MIPS SoCs so
the driver still has value.
Signed-off-by: James Hogan <jhogan@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-metag@vger.kernel.org
The ISA_BUS_API Kconfig option enables the compilation of the ISA bus
driver. The ISA bus driver does not perform any hardware interaction,
and is instead just a thin layer of software abstraction to eliminate
boilerplate code common to ISA-style device drivers. Since ISA_BUS_API
has no dependencies and does not jeopardize the integrity of the system
when enabled, drivers should select it when the ISA bus driver
functionality is needed.
Cc: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
isp5100_tco.c uses watchdog core functions (from watchdog_core.c) and, when
compiled without CONFIG_WATCHDOG_CORE being set, it produces the
following build error:
ERROR: "devm_watchdog_register_device" [drivers/watchdog/sp5100_tco.ko] undefined!
ERROR: "watchdog_init_timeout" [drivers/watchdog/sp5100_tco.ko] undefined!
Fix this by selecting CONFIG_WATCHDOG_CORE.
Fixes: 7cd9d5fff7 ("watchdog: sp5100_tco: Convert to use watchdog subsystem")
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
xen_wdt uses watchdog core functions (from watchdog_core.c) and, when
compiled without CONFIG_WATCHDOG_CORE being set, it produces the
following build error:
ERROR: "devm_watchdog_register_device" [drivers/watchdog/xen_wdt.ko] undefined!
ERROR: "watchdog_init_timeout" [drivers/watchdog/xen_wdt.ko] undefined!
Fix this by selecting CONFIG_WATCHDOG_CORE when CONFIG_XEN_WDT is set.
Fixes: 18cffd68e0 ("watchdog: xen_wdt: use the watchdog subsystem")
Signed-off-by: Radu Rendec <radu.rendec@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
i6300esb uses fuctions defined in watchdog_core.c, and when
CONFIG_WATCHDOG_CORE is not set we have this build error:
drivers/watchdog/i6300esb.o: In function `esb_remove':
i6300esb.c:(.text+0xcc): undefined reference to `watchdog_unregister_device'
drivers/watchdog/i6300esb.o: In function `esb_probe':
i6300esb.c:(.text+0x2a1): undefined reference to `watchdog_init_timeout'
i6300esb.c:(.text+0x388): undefined reference to `watchdog_register_device'
make: *** [Makefile:1029: vmlinux] Error 1
Fix this by selecting CONFIG_WATCHDOG_CORE when I6300ESB_WDT is set.
Fixes: 7af4ac8772 ("watchdog: i6300esb: use the watchdog subsystem")
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
We can build this driver with or without NVMEM, but not built-in
when NVMEM is a loadable module:
drivers/watchdog/rave-sp-wdt.o: In function `rave_sp_wdt_probe':
rave-sp-wdt.c:(.text+0x27c): undefined reference to `nvmem_cell_get'
rave-sp-wdt.c:(.text+0x290): undefined reference to `nvmem_cell_read'
rave-sp-wdt.c:(.text+0x2c4): undefined reference to `nvmem_cell_put'
This adds a Kconfig dependency to enforce that.
Fixes: c3bb333457 ("watchdog: Add RAVE SP watchdog driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Merge tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- new watchdog device drivers for Realtek RTD1295 and Spreadtrum SC9860
platform
- add support for the following devices: jz4780 SoC, AST25xx series SoC
and r8a77970 SoC
- convert to watchdog framework: i6300esb_wdt, xen_wdt and sp5100_tco
- several fixes for watchdog core
- remove at32ap700x and obsolete documentation
- gpio: Convert to use GPIO descriptors
- rename gemini into FTWDT010 as this IP block is generc from Faraday
Technology
- various clean-ups and small bugfixes
- add Guenter Roeck as co-maintainer
- change maintainers e-mail address
* tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdog: (74 commits)
documentation: watchdog: remove documentation of w83697hf_wdt/w83697ug_wdt
documentation: watchdog: remove documentation for ixp2000
documentation: watchdog: remove documentation of at32ap700x_wdt
watchdog: remove at32ap700x_wdt
watchdog: sp5100_tco: Add support for recent FCH versions
watchdog: sp5100-tco: Abort if watchdog is disabled by hardware
watchdog: sp5100_tco: Use bit operations
watchdog: sp5100_tco: Convert to use watchdog subsystem
watchdog: sp5100_tco: Clean up function and variable names
watchdog: sp5100_tco: Use dev_ print functions where possible
watchdog: sp5100_tco: Match PCI device early
watchdog: sp5100_tco: Clean up sp5100_tco_setupdevice
watchdog: sp5100_tco: Use standard error codes
watchdog: sp5100_tco: Use request_muxed_region where possible
watchdog: sp5100_tco: Fix watchdog disable bit
watchdog: sp5100_tco: Always use SP5100_IO_PM_{INDEX_REG,DATA_REG}
watchdog: core: make sure the watchdog_worker is not deferred
watchdog: mt7621: switch to using managed devm_watchdog_register_device()
watchdog: mt7621: set WDOG_HW_RUNNING bit when appropriate
watchdog: imx2_wdt: restore previous timeout after suspend+resume
...
This patch adds the watchdog driver for Spreadtrum SC9860 platform.
Signed-off-by: Eric Long <eric.long@spreadtrum.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This renames all the driver files and symbols for the Gemini
watchdog to FTWDT010 as it has been revealed that this IP block
is a generic watchdog timer from Faraday Technology used in
several SoC designs.
Select this driver by default for the Gemini, it is a sensible
driver to always have enabled.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The driver also supports the watchdog in the AST25xx series, and
may work on earlier SoCs as well.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Apseed sounds like a good name for a web/mobile start-up incubator, but
isn't a reflection of Aspeed themselves.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Add a watchdog driver for the Realtek RTD1295 SoC.
Based on QNAP's arch/arm/mach-rtk119x/driver/rtk_watchdog.c code and
mach-rtk119x/driver/dc2vo/fpga/include/iso_reg.h register defines.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Commit da2a68b3eb ("watchdog: Enable COMPILE_TEST where possible")
enabled building the Indy watchdog driver when COMPILE_TEST is enabled.
However, the driver makes reference to symbols that are only defined for
certain platforms are selected in the config. These platforms select
SGI_HAS_INDYDOG. Without this, link time errors result, for example
when building a MIPS allyesconfig.
drivers/watchdog/indydog.o: In function `indydog_write':
indydog.c:(.text+0x18): undefined reference to `sgimc'
indydog.c:(.text+0x1c): undefined reference to `sgimc'
drivers/watchdog/indydog.o: In function `indydog_start':
indydog.c:(.text+0x54): undefined reference to `sgimc'
indydog.c:(.text+0x58): undefined reference to `sgimc'
drivers/watchdog/indydog.o: In function `indydog_stop':
indydog.c:(.text+0xa4): undefined reference to `sgimc'
drivers/watchdog/indydog.o:indydog.c:(.text+0xa8): more undefined
references to `sgimc' follow
make: *** [Makefile:1005: vmlinux] Error 1
Fix this by ensuring that CONFIG_INDIDOG can only be selected when the
necessary dependent platform symbols are built in.
Fixes: da2a68b3eb ("watchdog: Enable COMPILE_TEST where possible")
Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Cc: <stable@vger.kernel.org> # 4.11 +
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Suggested-by: James Hogan <james.hogan@mips.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Pull watchdog updates from Wim Van Sebroeck:
- Add Renesas RZ/A WDT Watchdog driver
- STM32 Independent WatchDoG (IWDG) support
- UniPhier watchdog support
- Add F71868 support
- Add support for NCT6793D and NCT6795D
- dw_wdt: add reset lines support
- core: add option to avoid early handling of watchdog
- core: introduce watchdog_worker_should_ping helper
- Cleanups and improvements for sama5d4, intel-mid_wdt, s3c2410_wdt,
orion_wdt, gpio_wdt, it87_wdt, meson_wdt, davinci_wdt, bcm47xx_wdt,
zx2967_wdt, cadence_wdt
* git://www.linux-watchdog.org/linux-watchdog: (32 commits)
watchdog: introduce watchdog_worker_should_ping helper
watchdog: uniphier: add UniPhier watchdog driver
dt-bindings: watchdog: add description for UniPhier WDT controller
watchdog: cadence_wdt: make of_device_ids const.
watchdog: zx2967: constify zx2967_wdt_ops.
watchdog: bcm47xx_wdt: constify bcm47xx_wdt_hard_ops and bcm47xx_wdt_soft_ops
watchdog: davinci: Add missing clk_disable_unprepare().
watchdog: davinci: Handle return value of clk_prepare_enable
watchdog: meson: Handle return value of clk_prepare_enable
watchdog: it87: Add support for various Super-IO chips
watchdog: it87: Use infrastructure to stop watchdog on reboot
watchdog: it87: Drop support for resetting watchdog though CIR and Game port
watchdog: it87: Convert to use watchdog core infrastructure
watchdog: it87: Drop FSF mailing address
watchdog: dw_wdt: get reset lines from dt
watchdog: bindings: dw_wdt: add reset lines
watchdog: w83627hf: Add support for NCT6793D and NCT6795D
watchdog: core: add option to avoid early handling of watchdog
watchdog: f71808e_wdt: Add F71868 support
watchdog: Add STM32 IWDG driver
...
Add a watchdog driver for Socionext UniPhier series SoC.
Note that the timeout value for this device must be a power
of 2 because of the specification.
Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
