kernel.git/drivers/watchdog/Kconfig, branch linux-4.3.y

watchdog: iTCO: Fix dependencies on I2C

2015-09-28T08:56:10Z

If I2C is built as module, the iTCO watchdog driver must be built as module as well. I2C_I801 must only be selected if I2C is configured. This fixes the following build errors, seen if I2C=m and ITCO_WDT=y. i2c-i801.c:(.text+0x2bf055): undefined reference to `i2c_del_adapter' i2c-i801.c:(.text+0x2c13e0): undefined reference to `i2c_add_adapter' i2c-i801.c:(.text+0x2c17bd): undefined reference to `i2c_new_device' Fixes: 2a7a0e9bf7b3 ("watchdog: iTCO_wdt: Add support for TCO on Intel Sunrisepoint") Reviewed-by: Matt Fleming Cc: Lee Jones Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

Merge git://www.linux-watchdog.org/linux-watchdog

2015-09-11T22:12:59Z

Pull watchdog updates from Wim Van Sebroeck: - new driver for NXP LPC18xx Watchdog Timer - new driver for SAMA5D4 watchdog timer - add support for MCP79 to nv_tco driver - clean-up and improvement of the mpc8xxx watchdog driver - improvements to gpio-wdt - at91sam9_wdt clock improvements ... and other small fixes and improvements * git://www.linux-watchdog.org/linux-watchdog: (25 commits) Watchdog: Fix parent of watchdog_devices watchdog: at91rm9200: Correct check for syscon_node_to_regmap() errors watchdog: at91sam9: get and use slow clock Documentation: dt: binding: atmel-sama5d4-wdt: for SAMA5D4 watchdog driver watchdog: add a driver to support SAMA5D4 watchdog timer watchdog: mpc8xxx: allow to compile for MPC512x watchdog: mpc8xxx: use better error code when watchdog cannot be enabled watchdog: mpc8xxx: use dynamic memory for device specific data watchdog: mpc8xxx: use devm_ioremap_resource to map memory watchdog: mpc8xxx: make use of of_device_get_match_data watchdog: mpc8xxx: simplify registration watchdog: mpc8xxx: remove dead code watchdog: lpc18xx_wdt_get_timeleft() can be static DT: watchdog: Add NXP LPC18xx Watchdog Timer binding documentation watchdog: NXP LPC18xx Watchdog Timer Driver watchdog: gpio-wdt: ping already at startup for always running devices watchdog: gpio-wdt: be more strict about hw_algo matching Documentation: watchdog: at91sam9_wdt: add clocks property watchdog: booke_wdt: Use infrastructure to check timeout limits watchdog: (nv_tco) add support for MCP79 ...

watchdog: add a driver to support SAMA5D4 watchdog timer

2015-09-09T19:38:29Z

From SAMA5D4, the watchdog timer is upgrated with a new feature, which is describled as in the datasheet, "WDT_MR can be written until a LOCKMR command is issued in WDT_CR". That is to say, as long as the bootstrap and u-boot don't issue a LOCKMR command, WDT_MR can be written more than once in the driver. So the SAMA5D4 watchdog driver's implementation is different from the at91sam9260 watchdog driver implemented in file at91sam9_wdt.c. The user application open the device file to enable the watchdog timer hardware, and close to disable it, and set the watchdog timer timeout by seting WDV and WDD fields of WDT_MR register, and ping the watchdog by issuing WDRSTT command to WDT_CR register with hard-coded key. Signed-off-by: Wenyou Yang Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: mpc8xxx: allow to compile for MPC512x

2015-09-09T19:38:16Z

The MPC5125 processor features a watchdog device that is identical to the MPC8610 one. So allow to enable the driver for MPC512x kernel configurations. Signed-off-by: Uwe Kleine-König Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: NXP LPC18xx Watchdog Timer Driver

2015-09-09T19:35:59Z

This commit adds support for the watchdog timer found in NXP LPC SoCs family, which includes LPC18xx/LPC43xx. Other SoCs in that family may share the same watchdog hardware. Watchdog driver registers a restart handler that will restart the system by performing an incorrect feed after ensuring the watchdog is enabled in reset mode. As watchdog cannot be disabled in hardware, driver's stop routine will regularly send a keepalive ping using a timer. Signed-off-by: Ariel D'Alessandro Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: iTCO_wdt: Add support for TCO on Intel Sunrisepoint

2015-08-11T14:03:52Z

The revision of the watchdog hardware in Sunrisepoint necessitates a new "version" inside the TCO watchdog driver because some of the register layouts have changed. Also update the Kconfig entry to select both the LPC and SMBus drivers since the TCO device is on the SMBus in Sunrisepoint. Signed-off-by: Matt Fleming Reviewed-by: Guenter Roeck Signed-off-by: Lee Jones

watchdog: gpio_wdt: Add option for early registration

2015-06-29T09:51:08Z

In some situation, mainly when it's not possible to disable a watchdog, you may want the watchdog driver to be started as soon as possible. Adding GPIO_WATCHDOG_ARCH_INITCALL to raise initcall from module_init to arch_initcall. This patch require watchdog registration deferral mechanism Signed-off-by: Jean-Baptiste Theou Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: da9062: DA9062 watchdog driver

2015-06-22T13:54:34Z

Add watchdog driver support for DA9062 Signed-off-by: Steve Twiss Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: Allow compile test of GPIO consumers if !GPIOLIB

2015-06-22T13:54:24Z

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer functionality only, can still be compiled if GPIOLIB is not enabled. Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where appropriate. Signed-off-by: Geert Uytterhoeven Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Cc: linux-watchdog@vger.kernel.org

watchdog: cadence: Add dependency on HAS_IOMEM

2015-06-22T13:54:23Z

Not all architectures have io memory. Fixes: drivers/built-in.o: In function `cdns_wdt_probe': cadence_wdt.c:(.text+0x33b7c9): undefined reference to `devm_ioremap_resource' Signed-off-by: Richard Weinberger Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck