mei_cl_device_id are not supposed to change at runtime. All functions
working with mei_cl_device_id provided by <linux/mei_cl_bus.h> work
with const mei_cl_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@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>
New driver for Add Loongson1 SoC.
Minor cleanup and fixes in various drivers.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=iGOO
-----END PGP SIGNATURE-----
Merge tag 'watchdog-for-linus-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull watchdog updates from Wim Van Sebroeck and Guenter Roeck:
- new driver for Add Loongson1 SoC
- minor cleanup and fixes in various drivers
* tag 'watchdog-for-linus-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
watchdog: it87_wdt: add IT8620E ID
watchdog: mpc8xxx: Remove unneeded linux/miscdevice.h include
watchdog: octeon: Remove unneeded linux/miscdevice.h include
watchdog: bcm2835_wdt: set WDOG_HW_RUNNING bit when appropriate
watchdog: loongson1: Add Loongson1 SoC watchdog driver
watchdog: cpwd: remove memory allocate failure message
watchdog: da9062/61: watchdog driver
intel-mid_wdt: Error code is just an integer
intel-mid_wdt: make sure watchdog is not running at startup
watchdog: mei_wdt: request stop on reboot to prevent false positive event
watchdog: hpwdt: changed maintainer information
watchdog: jz4740: Fix modular build
watchdog: qcom: fix kernel panic due to external abort on non-linefetch
watchdog: davinci: add support for deferred probing
watchdog: meson: Remove unneeded platform MODULE_ALIAS
watchdog: Standardize leading tabs and spaces in Kconfig file
watchdog: max77620_wdt: fix module autoload
watchdog: bcm7038_wdt: fix module autoload
Systemd on reboot enables shutdown watchdog that leaves the watchdog
device open to ensure that even if power down process get stuck the
platform reboots nonetheless.
The iamt_wdt is an alarm-only watchdog and can't reboot system, but the
FW will generate an alarm event reboot was completed in time, as the
watchdog is not automatically disabled during power cycle.
So we should request stop watchdog on reboot to eliminate wrong alarm
from the FW.
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Split callbacks for RX and async notification events on mei bus to
eliminate synchronization problems and to open way for RX optimizations.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The callback context is redunant as all the information can be
retrived from the device struture of its private data.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For Intel SKL platform the ME device can inform the host via
asynchronous notification that the watchdog feature was activated
on the device. The activation doesn't require reboot.
In that case the driver registers the watchdog device with the kernel.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For Intel Broadwell and newer platforms, the ME device can inform
the host whether the watchdog functionality is activated or not.
If the watchdog functionality is not activated then the watchdog interface
can be not registered and eliminate unnecessary pings and hence lower the
power consumption by avoiding waking up the device.
The feature can be deactivated also without reboot
in that case the watchdog device should be unregistered at runtime.
The information regarding the deactivation is reported
in the ping response command. In runtime case the unregistration
has to be run from a worker so that the ping initiated by the watchdog
core completes. Otherwise the flow will deadlock on watchdog
core mutex which both ping and unregistration acquire.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add entry for displaying current watchdog internal state
cat <debugfs>/mei_wdt/state
IDLE|START|RUNNING|STOPPING
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Create a driver with the generic watchdog interface
for the MEI iAMT watchdog device.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Marcus Folkesson