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2016-07-17watchdog: drop redundant 'default n' option for WATCHDOG_SYSFSVladimir Zapolskiy1-1/+0
The option 'default n' and its absence are equal for kbuild, which makes explicit 'default n' redundant. Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.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>
2016-07-17watchdog: max77620: Add support for watchdog timerLaxman Dewangan3-0/+237
Maxim PMIC MAX77620 is Power management IC which have multiple sub blocks like regulators (DCDC/LDOs), GPIO, RTC, Clock, Watchdog timer etc. Add the driver for watchdog timer under watchdog framework. The driver implements the watchdog callbacks to start, stop, ping and set timeout for watchodg framework. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.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>
2016-07-17watchdog: f71808e_wdt: Add F81866 supportJi-Ze Hong (Peter Hong)1-2/+26
Adds watchdog enable support for Fintek F81866 Super-IO chip to Fintek wdt driver (f71808e_wdt) Tested and verified on iBASE MI802 Industrial PC Datasheet references: http://www.alldatasheet.com/datasheet-pdf/pdf/459085/FINTEK/F81866AD-I.html Suggested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@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>
2016-07-17watchdog: sirf: fix __iomem * warningsBen Dooks1-5/+10
Fix the following warnings from sparse due to casting to/from an __iomem annotated variable: drivers/watchdog/sirfsoc_wdt.c:48:18: warning: incorrect type in assignment (different address spaces) drivers/watchdog/sirfsoc_wdt.c:48:18: expected void [noderef] <asn:2>*wdt_base drivers/watchdog/sirfsoc_wdt.c:48:18: got void * drivers/watchdog/sirfsoc_wdt.c:64:18: warning: incorrect type in assignment (different address spaces) drivers/watchdog/sirfsoc_wdt.c:64:18: expected void [noderef] <asn:2>*wdt_base drivers/watchdog/sirfsoc_wdt.c:64:18: got void * drivers/watchdog/sirfsoc_wdt.c:82:54: warning: incorrect type in initializer (different address spaces) drivers/watchdog/sirfsoc_wdt.c:82:54: expected void [noderef] <asn:2>*wdt_base drivers/watchdog/sirfsoc_wdt.c:82:54: got void * drivers/watchdog/sirfsoc_wdt.c:99:54: warning: incorrect type in initializer (different address spaces) drivers/watchdog/sirfsoc_wdt.c:99:54: expected void [noderef] <asn:2>*wdt_base drivers/watchdog/sirfsoc_wdt.c:99:54: got void * drivers/watchdog/sirfsoc_wdt.c:153:44: warning: incorrect type in argument 2 (different address spaces) drivers/watchdog/sirfsoc_wdt.c:153:44: expected void *data drivers/watchdog/sirfsoc_wdt.c:153:44: got void [noderef] <asn:2>*[assigned] base Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> 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>
2016-07-17watchdog: tangox: Mark running watchdog correctlyGuenter Roeck1-1/+1
A running watchdog is marked with WDOG_HW_RUNNING, not with WDOG_ACTIVE. WDOG_ACTIVE indicates that the watchdog device has been opened from user space. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-07-17watchdog: Improve description of min_hw_heartbeat_msGuenter Roeck2-3/+5
The description of min_hw_heartbeat_ms is misleading and needs some improvements. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-07-17watchdog: sbsa: Set WDOG_HW_RUNNING, when watchdog is already running.Pratyush Anand1-0/+2
This patch uses the new flag WDOG_HW_RUNNING in driver. According to the definition of this flag, it should be set, if watchdog is running after booting, before it's opened. Signed-off-by: Pratyush Anand <panand@redhat.com> Signed-off-by: Fu Wei <fu.wei@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>
2016-07-17watchdog: sbsa: Use max_hw_heartbeat_ms instead of max_timeoutPratyush Anand1-2/+2
Using max_hw_heartbeat_ms instead of max_timeout gives the flexibility to achieve higher user "timeout". Therefore, use this new infrastructure. Signed-off-by: Pratyush Anand <panand@redhat.com> Signed-off-by: Fu Wei <fu.wei@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>
2016-07-17watchdog: skip min and max timeout validity check when max_hw_heartbeat_ms is definedPratyush Anand1-1/+1
When max_hw_heartbeat_ms has a none zero value, max_timeout is not used. So it's value can be 0. In such case if a driver uses min_timeout functionality, then check will always fail. This patch fixes above issue. Signed-off-by: Pratyush Anand <panand@redhat.com> Signed-off-by: Fu Wei <fu.wei@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>
2016-07-17watchdog: pcwd: Utilize the module_isa_driver macroWilliam Breathitt Gray1-13/+1
This driver does not do anything special in module init/exit. This patch eliminates the module init/exit boilerplate code by utilizing the module_isa_driver macro. Signed-off-by: William Breathitt Gray <vilhelm.gray@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>
2016-07-17watchdog: Add Aspeed watchdog driverJoel Stanley3-0/+226
Provides generic watchdog features as well as reboot support for the Aspeed SoCs. 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>