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/kernel/linux/linux-6.6/Documentation/watchdog/
Dmlx-wdt.rst2 Mellanox watchdog drivers
8 This driver provides watchdog functionality for various Mellanox
11 Mellanox watchdog device is implemented in a programmable logic device.
13 There are 2 types of HW watchdog implementations.
15 Type 1:
19 Get time-left isn't supported
21 Type 2:
23 a user-defined timeout.
25 Get time-left is supported.
27 Type 3:
[all …]
/kernel/linux/linux-5.10/Documentation/watchdog/
Dmlx-wdt.rst2 Mellanox watchdog drivers
8 This driver provides watchdog functionality for various Mellanox
11 Mellanox watchdog device is implemented in a programmable logic device.
13 There are 2 types of HW watchdog implementations.
15 Type 1:
19 Get time-left isn't supported
21 Type 2:
23 a user-defined timeout.
25 Get time-left is supported.
27 Type 3:
[all …]
/kernel/linux/linux-6.6/Documentation/devicetree/bindings/watchdog/
Datmel,at91sam9-wdt.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/watchdog/atmel,at91sam9-wdt.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Atmel Watchdog Timers
11 - Eugen Hristev <eugen.hristev@microchip.com>
15 const: atmel,at91sam9260-wdt
26 atmel,max-heartbeat-sec:
32 atmel,min-heartbeat-sec:
35 must be smaller than the max-heartbeat-sec value. It is used to
[all …]
Daspeed-wdt.txt1 Aspeed Watchdog Timer
4 - compatible: must be one of:
5 - "aspeed,ast2400-wdt"
6 - "aspeed,ast2500-wdt"
7 - "aspeed,ast2600-wdt"
9 - reg: physical base address of the controller and length of memory mapped
14 - aspeed,reset-type = "cpu|soc|system|none"
16 Reset behavior - Whenever a timeout occurs the watchdog can be programmed
19 Type "none" can be specified to indicate that no resets are to be done.
20 This is useful in situations where another watchdog engine on chip is
[all …]
Datmel,sama5d4-wdt.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/watchdog/atmel,sama5d4-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Atmel SAMA5D4 Watchdog Timer (WDT) Controller
10 - Eugen Hristev <eugen.hristev@microchip.com>
13 - $ref: watchdog.yaml#
18 - atmel,sama5d4-wdt
19 - microchip,sam9x60-wdt
20 - microchip,sama7g5-wdt
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Dmediatek,mtk-wdt.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/watchdog/mediatek,mtk-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MediaTek SoCs Watchdog timer
10 - Matthias Brugger <matthias.bgg@gmail.com>
13 The watchdog supports a pre-timeout interrupt that fires
14 timeout-sec/2 before the expiry.
17 - $ref: watchdog.yaml#
22 - enum:
[all …]
Dst_lpc_wdt.txt1 STMicroelectronics Low Power Controller (LPC) - Watchdog
4 LPC currently supports Watchdog OR Real Time Clock OR Clocksource
7 [See: ../rtc/rtc-st-lpc.txt for RTC options]
8 [See: ../timer/st,stih407-lpc for Clocksource options]
12 - compatible : Should be: "st,stih407-lpc"
13 - reg : LPC registers base address + size
14 - interrupts : LPC interrupt line number and associated flags
15 - clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt)
16 - st,lpc-mode : The LPC can run either one of three modes:
22 Required properties [watchdog mode]
[all …]
/kernel/linux/linux-5.10/drivers/watchdog/
Df71808e_wdt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2007-2009 Hans de Goede <hdegoede@redhat.com> *
22 #include <linux/watchdog.h>
26 #define SIO_F71808FG_LD_WDT 0x07 /* Watchdog timer logical device */
27 #define SIO_UNLOCK_KEY 0x87 /* Key to enable Super-I/O */
28 #define SIO_LOCK_KEY 0xAA /* Key to disable Super-I/O */
36 #define SIO_F81866_REG_PORT_SEL 0x27 /* F81866 Multi-Function Register */
76 watchdog signal */
77 #define WATCHDOG_F71862FG_PIN 63 /* default watchdog reset output
88 "Watchdog timeout in seconds. 1<= timeout <="
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Dwdt.c1 // SPDX-License-Identifier: GPL-2.0+
5 * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
10 * "AS-IS" and at no charge.
18 * Alan Cox : Added the watchdog ioctl() stuff
38 #include <linux/watchdog.h>
62 "Watchdog heartbeat in seconds. (0 < heartbeat < 65536, default="
68 "Watchdog cannot be stopped once started (default="
71 /* You must set these - there is no sane way to probe for this board. */
82 /* Support for the Fan Tachometer on the WDT501-P */
86 "WDT501-P Fan Tachometer support (0=disable, default=0)");
[all …]
Dwdt_pci.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Industrial Computer Source PCI-WDT500/501 driver
5 * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
10 * "AS-IS" and at no charge.
18 * Alan Cox : Added the watchdog ioctl() stuff
43 #include <linux/watchdog.h>
57 /* We can only use 1 card due to the /dev/watchdog restriction */
74 "Watchdog heartbeat in seconds. (0<heartbeat<65536, default="
80 "Watchdog cannot be stopped once started (default="
83 /* Support for the Fan Tachometer on the PCI-WDT501 */
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/watchdog/
Datmel-wdt.txt1 * Atmel Watchdog Timers
3 ** at91sam9-wdt
6 - compatible: must be "atmel,at91sam9260-wdt".
7 - reg: physical base address of the controller and length of memory mapped
9 - clocks: phandle to input clock.
12 - timeout-sec: contains the watchdog timeout in seconds.
13 - interrupts : Should contain WDT interrupt.
14 - atmel,max-heartbeat-sec : Should contain the maximum heartbeat value in
17 - atmel,min-heartbeat-sec : Should contain the minimum heartbeat value in
18 seconds. This value must be smaller than the max-heartbeat-sec value.
[all …]
Daspeed-wdt.txt1 Aspeed Watchdog Timer
4 - compatible: must be one of:
5 - "aspeed,ast2400-wdt"
6 - "aspeed,ast2500-wdt"
7 - "aspeed,ast2600-wdt"
9 - reg: physical base address of the controller and length of memory mapped
14 - aspeed,reset-type = "cpu|soc|system|none"
16 Reset behavior - Whenever a timeout occurs the watchdog can be programmed
19 Type "none" can be specified to indicate that no resets are to be done.
20 This is useful in situations where another watchdog engine on chip is
[all …]
Datmel-sama5d4-wdt.txt1 * Atmel SAMA5D4 Watchdog Timer (WDT) Controller
4 - compatible: "atmel,sama5d4-wdt" or "microchip,sam9x60-wdt"
5 - reg: base physical address and length of memory mapped region.
8 - timeout-sec: watchdog timeout value (in seconds).
9 - interrupts: interrupt number to the CPU.
10 - atmel,watchdog-type: should be "hardware" or "software".
11 "hardware": enable watchdog fault reset. A watchdog fault triggers
12 watchdog reset.
13 "software": enable watchdog fault interrupt. A watchdog fault asserts
14 watchdog interrupt.
[all …]
Dst_lpc_wdt.txt1 STMicroelectronics Low Power Controller (LPC) - Watchdog
4 LPC currently supports Watchdog OR Real Time Clock OR Clocksource
7 [See: ../rtc/rtc-st-lpc.txt for RTC options]
8 [See: ../timer/st,stih407-lpc for Clocksource options]
12 - compatible : Should be: "st,stih407-lpc"
13 - reg : LPC registers base address + size
14 - interrupts : LPC interrupt line number and associated flags
15 - clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt)
16 - st,lpc-mode : The LPC can run either one of three modes:
22 Required properties [watchdog mode]
[all …]
/kernel/linux/linux-6.6/drivers/watchdog/
Dwdt.c1 // SPDX-License-Identifier: GPL-2.0+
5 * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
10 * "AS-IS" and at no charge.
18 * Alan Cox : Added the watchdog ioctl() stuff
38 #include <linux/watchdog.h>
62 "Watchdog heartbeat in seconds. (0 < heartbeat < 65536, default="
68 "Watchdog cannot be stopped once started (default="
71 /* You must set these - there is no sane way to probe for this board. */
82 /* Support for the Fan Tachometer on the WDT501-P */
86 "WDT501-P Fan Tachometer support (0=disable, default=0)");
[all …]
Dwdt_pci.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Industrial Computer Source PCI-WDT500/501 driver
5 * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
10 * "AS-IS" and at no charge.
18 * Alan Cox : Added the watchdog ioctl() stuff
43 #include <linux/watchdog.h>
57 /* We can only use 1 card due to the /dev/watchdog restriction */
74 "Watchdog heartbeat in seconds. (0<heartbeat<65536, default="
80 "Watchdog cannot be stopped once started (default="
83 /* Support for the Fan Tachometer on the PCI-WDT501 */
[all …]
Dbd9576_wdt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * ROHM BD9576MUF and BD9573MUF Watchdog driver
10 #include <linux/mfd/rohm-bd957x.h>
15 #include <linux/watchdog.h>
20 "Watchdog cannot be stopped once started (default=\"false\")");
37 gpiod_set_value_cansleep(priv->gpiod_en, 0); in bd9576_wdt_disable()
45 gpiod_set_value_cansleep(priv->gpiod_ping, 1); in bd9576_wdt_ping()
46 gpiod_set_value_cansleep(priv->gpiod_ping, 0); in bd9576_wdt_ping()
55 gpiod_set_value_cansleep(priv->gpiod_en, 1); in bd9576_wdt_start()
72 .identity = "BD957x Watchdog",
[all …]
Df71808e_wdt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2007-2009 Hans de Goede <hdegoede@redhat.com> *
17 #include <linux/watchdog.h>
21 #define SIO_F71808FG_LD_WDT 0x07 /* Watchdog timer logical device */
22 #define SIO_UNLOCK_KEY 0x87 /* Key to enable Super-I/O */
23 #define SIO_LOCK_KEY 0xAA /* Key to disable Super-I/O */
31 #define SIO_F81866_REG_PORT_SEL 0x27 /* F81866 Multi-Function Register */
72 watchdog signal */
73 #define WATCHDOG_F71862FG_PIN 63 /* default watchdog reset output
83 "Watchdog timeout in seconds. 1<= timeout <="
[all …]
/kernel/linux/linux-6.6/Documentation/devicetree/bindings/mfd/
Ddlg,da9063.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Steve Twiss <stwiss.opensource@diasemi.com>
13 For device-tree bindings of other sub-modules refer to the binding documents
14 under the respective sub-system directories.
15 Using regulator-{uv,ov}-{warn,error,protection}-microvolt requires special
24 - dlg,da9063
25 - dlg,da9063l
33 interrupt-controller: true
[all …]
Drohm,bd9576-pmic.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/mfd/rohm,bd9576-pmic.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Matti Vaittinen <mazziesaccount@gmail.com>
14 powering the R-Car series processors.
16 monitoring. A watchdog logic with slow ping/windowed modes is also included.
21 - rohm,bd9576
22 - rohm,bd9573
32 rohm,vout1-en-low:
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/kernel/linux/linux-6.6/Documentation/devicetree/bindings/timer/
Dingenic,tcu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 Documentation/arch/mips/ingenic-tcu.rst.
14 - Paul Cercueil <paul@crapouillou.net>
21 - ingenic,jz4740-tcu
22 - ingenic,jz4725b-tcu
23 - ingenic,jz4760-tcu
24 - ingenic,jz4760b-tcu
25 - ingenic,jz4770-tcu
[all …]
/kernel/linux/linux-5.10/Documentation/driver-api/
Dipmi.rst12 standardized database for field-replaceable units (FRUs) and a watchdog
25 -------------
32 No matter what, you must pick 'IPMI top-level message handler' to use
35 The message handler does not provide any user-level interfaces.
36 Kernel code (like the watchdog) can still use it. If you need access
50 these enabled and let the drivers auto-detect what is present.
61 "The SMBus Driver" on how to hand-configure your system.
63 IPMI defines a standard watchdog timer. You can enable this with the
64 'IPMI Watchdog Timer' config option. If you compile the driver into
65 the kernel, then via a kernel command-line option you can have the
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/timer/
Dingenic,tcu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 Documentation/mips/ingenic-tcu.rst.
14 - Paul Cercueil <paul@crapouillou.net>
21 - ingenic,jz4740-tcu
22 - ingenic,jz4725b-tcu
23 - ingenic,jz4770-tcu
24 - ingenic,jz4780-tcu
25 - ingenic,x1000-tcu
[all …]
/kernel/linux/linux-6.6/Documentation/driver-api/
Dipmi.rst12 standardized database for field-replaceable units (FRUs) and a watchdog
25 -------------
32 No matter what, you must pick 'IPMI top-level message handler' to use
35 The message handler does not provide any user-level interfaces.
36 Kernel code (like the watchdog) can still use it. If you need access
50 these enabled and let the drivers auto-detect what is present.
61 "The SMBus Driver" on how to hand-configure your system.
63 IPMI defines a standard watchdog timer. You can enable this with the
64 'IPMI Watchdog Timer' config option. If you compile the driver into
65 the kernel, then via a kernel command-line option you can have the
[all …]
/kernel/linux/linux-5.10/Documentation/ABI/testing/
Dsysfs-bus-siox1 What: /sys/bus/siox/devices/siox-X/active
3 Contact: Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.d…
7 expected to not do anything because their watchdog triggered.
9 does a push-pull cycle to write and read data from the
14 What: /sys/bus/siox/devices/siox-X/device_add
16 Contact: Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.d…
18 Write-only file. Write
20 <type> <inbytes> <outbytes> <statustype>
22 to add a new device dynamically. <type> is the name that is used to match
26 <statustype> defines the 4 bit device type that is check to identify connection
[all …]

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