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Searched +full:watchdog +full:- +full:ping +full:- +full:gpios (Results 1 – 3 of 3) sorted by relevance

/linux/drivers/watchdog/
H A Dmax63xx_wdt.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/char/watchdog/max63xx_wdt.c
5 * Driver for max63{69,70,71,72,73,74} watchdog timers
9 * This driver assumes the watchdog pins are memory mapped (as it is
10 * the case for the Arcom Zeus). Should it be connected over GPIOs or
20 #include <linux/watchdog.h>
36 * to ping the watchdog.
54 void (*ping)(struct max63xx_wdt *wdt); member
103 while (table->twd) { in max63xx_select_timeout()
104 if (value <= table->twd) { in max63xx_select_timeout()
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H A Dmena21_wdt.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Watchdog driver for the A21 VME CPU Boards
14 #include <linux/watchdog.h>
34 struct gpio_desc *gpios[NUM_GPIOS]; member
39 MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
46 reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST0]) ? (1 << 0) : 0; in a21_wdt_get_bootstatus()
47 reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST1]) ? (1 << 1) : 0; in a21_wdt_get_bootstatus()
48 reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST2]) ? (1 << 2) : 0; in a21_wdt_get_bootstatus()
57 gpiod_set_value(drv->gpios[GPIO_WD_ENAB], 1); in a21_wdt_start()
66 gpiod_set_value(drv->gpios[GPIO_WD_ENAB], 0); in a21_wdt_stop()
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/linux/Documentation/driver-api/gpio/
H A Ddrivers-on-gpio.rst6 the right in-kernel and userspace APIs/ABIs for the job, and that these
10 - leds-gpio: drivers/leds/leds-gpio.c will handle LEDs connected to GPIO
13 - ledtrig-gpio: drivers/leds/trigger/ledtrig-gpio.c will provide a LED trigger,
15 (and that LED may in turn use the leds-gpio as per above).
17 - gpio-keys: drivers/input/keyboard/gpio_keys.c is used when your GPIO line
20 - gpio-keys-polled: drivers/input/keyboard/gpio_keys_polled.c is used when your
24 - gpio_mouse: drivers/input/mouse/gpio_mouse.c is used to provide a mouse with
25 up to three buttons by simply using GPIOs and no mouse port. You can cut the
29 - gpio-beeper: drivers/input/misc/gpio-beeper.c is used to provide a beep from
31 off/on, for an actual PWM waveform, see pwm-gpio below.)
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