^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Watchdog driver for the A21 VME CPU Boards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2013 MEN Mikro Elektronik Nuernberg GmbH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/watchdog.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define NUM_GPIOS 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) enum a21_wdt_gpios {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) GPIO_WD_ENAB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) GPIO_WD_FAST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) GPIO_WD_TRIG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) GPIO_WD_RST0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) GPIO_WD_RST1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) GPIO_WD_RST2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct a21_wdt_drv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct watchdog_device wdt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct gpio_desc *gpios[NUM_GPIOS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static bool nowayout = WATCHDOG_NOWAYOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) module_param(nowayout, bool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static unsigned int a21_wdt_get_bootstatus(struct a21_wdt_drv *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int reset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST0]) ? (1 << 0) : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST1]) ? (1 << 1) : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST2]) ? (1 << 2) : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static int a21_wdt_start(struct watchdog_device *wdt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) gpiod_set_value(drv->gpios[GPIO_WD_ENAB], 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static int a21_wdt_stop(struct watchdog_device *wdt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) gpiod_set_value(drv->gpios[GPIO_WD_ENAB], 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static int a21_wdt_ping(struct watchdog_device *wdt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) gpiod_set_value(drv->gpios[GPIO_WD_TRIG], 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) ndelay(10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) gpiod_set_value(drv->gpios[GPIO_WD_TRIG], 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static int a21_wdt_set_timeout(struct watchdog_device *wdt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) unsigned int timeout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) if (timeout != 1 && timeout != 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) dev_err(wdt->parent, "Only 1 and 30 allowed as timeout\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (timeout == 30 && wdt->timeout == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) dev_err(wdt->parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) "Transition from fast to slow mode not allowed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (timeout == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) gpiod_set_value(drv->gpios[GPIO_WD_FAST], 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) gpiod_set_value(drv->gpios[GPIO_WD_FAST], 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) wdt->timeout = timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static const struct watchdog_info a21_wdt_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .identity = "MEN A21 Watchdog",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static const struct watchdog_ops a21_wdt_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .start = a21_wdt_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .stop = a21_wdt_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .ping = a21_wdt_ping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .set_timeout = a21_wdt_set_timeout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) static struct watchdog_device a21_wdt = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .info = &a21_wdt_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .ops = &a21_wdt_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .min_timeout = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .max_timeout = 30,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static int a21_wdt_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) struct a21_wdt_drv *drv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) unsigned int reset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) int num_gpios;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) drv = devm_kzalloc(dev, sizeof(struct a21_wdt_drv), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (!drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) num_gpios = gpiod_count(dev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (num_gpios != NUM_GPIOS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) dev_err(dev, "gpios DT property wrong, got %d want %d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) num_gpios, NUM_GPIOS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /* Request the used GPIOs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) for (i = 0; i < num_gpios; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) enum gpiod_flags gflags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (i < GPIO_WD_RST0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) gflags = GPIOD_ASIS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) gflags = GPIOD_IN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) drv->gpios[i] = devm_gpiod_get_index(dev, NULL, i, gflags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (IS_ERR(drv->gpios[i]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return PTR_ERR(drv->gpios[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) gpiod_set_consumer_name(drv->gpios[i], "MEN A21 Watchdog");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * Retrieve the initial value from the GPIOs that should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * output, then set up the line as output with that value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) if (i < GPIO_WD_RST0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) val = gpiod_get_value(drv->gpios[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) gpiod_direction_output(drv->gpios[i], val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) watchdog_init_timeout(&a21_wdt, 30, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) watchdog_set_nowayout(&a21_wdt, nowayout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) watchdog_set_drvdata(&a21_wdt, drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) a21_wdt.parent = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) reset = a21_wdt_get_bootstatus(drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) if (reset == 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) a21_wdt.bootstatus |= WDIOF_EXTERN1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) else if (reset == 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) a21_wdt.bootstatus |= WDIOF_CARDRESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) else if (reset == 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) a21_wdt.bootstatus |= WDIOF_POWERUNDER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) else if (reset == 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) a21_wdt.bootstatus |= WDIOF_EXTERN2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) drv->wdt = a21_wdt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) dev_set_drvdata(dev, drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ret = devm_watchdog_register_device(dev, &a21_wdt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) dev_info(dev, "MEN A21 watchdog timer driver enabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) static void a21_wdt_shutdown(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct a21_wdt_drv *drv = dev_get_drvdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) gpiod_set_value(drv->gpios[GPIO_WD_ENAB], 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) static const struct of_device_id a21_wdt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) { .compatible = "men,a021-wdt" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) MODULE_DEVICE_TABLE(of, a21_wdt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static struct platform_driver a21_wdt_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) .probe = a21_wdt_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) .shutdown = a21_wdt_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) .name = "a21-watchdog",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) .of_match_table = a21_wdt_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) module_platform_driver(a21_wdt_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) MODULE_AUTHOR("MEN Mikro Elektronik");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) MODULE_DESCRIPTION("MEN A21 Watchdog");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) MODULE_ALIAS("platform:a21-watchdog");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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