kernel/linux.git/drivers/watchdog, branch linux-4.20.y

watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem

2019-02-27T09:09:45+00:00

[ Upstream commit 3aa8b8bbc142eeaac89891de584535ceb7fce405 ] These files need #include to compile correctly. Fixes: ac3167257b9f ("headers: separate linux/mod_devicetable.h from linux/platform_device.h") Signed-off-by: NeilBrown Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: renesas_wdt: don't set divider while watchdog is running

2019-02-12T19:02:17+00:00

[ Upstream commit e990e12741877e9bfac402ca468f4007a75f6e2a ] The datasheet says we must stop the timer before changing the clock divider. This can happen when the restart handler is called while the watchdog is running. Signed-off-by: Wolfram Sang Reviewed-by: Fabrizio Castro Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: ts4800: release syscon device node in ts4800_wdt_probe()

2018-10-22T08:16:28+00:00

Put syscon device node when it is not needed anymore. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: armada_37xx_wdt: use do_div for u64 division

2018-10-13T13:19:43+00:00

When the driver is built on 32 bit architectures during compile test, the linker complains about "__udivdi3" being undefined. We have to use do_div macro instead of the division operator when dividing u64 value. Signed-off-by: Marek Behún Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: Add support for Armada 37xx CPU watchdog

2018-10-13T13:19:39+00:00

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 Reviewed-by: Guenter Roeck Tested-by: Miquel Raynal Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: mpc8xxx: provide boot status

2018-10-13T13:19:38+00:00

mpc8xxx watchdog driver supports the following platforms: - mpc8xx - mpc83xx - mpc86xx Those three platforms have a 32 bits register which provides the reason of the last boot, including whether it was caused by the watchdog. mpc8xx: Register RSR, bit SWRS (bit 3) mpc83xx: Register RSR, bit SWRS (bit 28) mpc86xx: Register RSTRSCR, bit WDT_RR (bit 11) This patch maps the register as defined in the device tree and updates wdt.bootstatus based on the value of the watchdog related bit. Then the information can be retrieved via the WDIOC_GETBOOTSTATUS ioctl. Hereunder is an example of devicetree for mpc8xx, the Reset Status Register being at offset 0x288: WDT: watchdog@0 { compatible = "fsl,mpc823-wdt"; reg = <0x0 0x10 0x288 0x4>; }; On the mpc83xx, RSR is at offset 0x910 On the mpc86xx, RSTRSCR is at offset 0xe0094 Suggested-by: Radu Rendec Tested-by: Christophe Leroy # On mpc885 Signed-off-by: Christophe Leroy Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: rza_wdt: Support longer timeouts

2018-10-02T11:32:29+00:00

The RZ/A2 watchdog timer extends the clock source options in order to allow for longer timeouts. Signed-off-by: Chris Brandt Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: hpwdt: Disable PreTimeout when Timeout is smaller

2018-10-02T11:32:28+00:00

During module install, disable pretimeout if the requested timeout value is not greater than the minimal pretimeout value that is supported by hardware. This makes the module load handling of pretimeout consistent with the ioctl handling of pretimeout. Signed-off-by: Jerry Hoemann Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck

watchdog: w83627hf_wdt: Support NCT6796D, NCT6797D, NCT6798D

2018-10-02T11:32:28+00:00

The watchdog controller on NCT6796D, NCT6797D, and NCT6798D is compatible with the wtachdog controller on other Nuvoton chips. Signed-off-by: Guenter Roeck Reviewed-by: Wim Van Sebroeck Signed-off-by: Wim Van Sebroeck

watchdog: mpc8xxx: use dev_xxxx() instead of pr_xxxx()

2018-10-02T11:32:28+00:00

mpc8xxx watchdog driver is a platform device drivers, it is therefore possible to use dev_xxx() messaging rather than pr_xxx() Signed-off-by: Christophe Leroy Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck