drivers/watchdog/da9063_wdt.c

25  * Watchdog selector to timeout in seconds.
27  *   others: timeout = 2048 ms * 2^(TWDSCALE-1).
53  * Read the currently active timeout.
73 da9063_wdt_update_timeout(struct da9063 *da9063, unsigned int timeout)
79 	 * The watchdog triggers a reboot if a timeout value is already
80 	 * programmed because the timeout value combines two functions
82 	 * The watchdog must be disabled to be able to change the timeout
84 	 * new timeout value which enables the watchdog again.
91 	regval = da9063_wdt_timeout_to_sel(timeout);
102 	ret = da9063_wdt_update_timeout(da9063, wdd->timeout);
145 				  unsigned int timeout)
152 	 * 1. The watchdog is off and someone wants to set the timeout for the
154 	 * 2. The watchdog is already running and a new timeout value should be
157 	 * The watchdog can't store a timeout value not equal zero without
158 	 * enabling the watchdog, so the timeout must be buffered by the driver.
161 		ret = da9063_wdt_update_timeout(da9063, timeout);
164 		dev_err(da9063->dev, "Failed to set watchdog timeout (err = %d)\n",
167 		wdd->timeout = wdt_timeout[da9063_wdt_timeout_to_sel(timeout)];
220 	unsigned int timeout;
247 	wdd->timeout = DA9063_WDG_TIMEOUT;
249 	/* Use pre-configured timeout if watchdog is already running. */
250 	timeout = da9063_wdt_read_timeout(da9063);
251 	if (timeout)
252 		wdd->timeout = timeout;
254 	/* Set timeout, maybe override it with DT value, scale it */
256 	da9063_wdt_set_timeout(wdd, wdd->timeout);
258 	/* Update timeout if the watchdog is already running. */
259 	if (timeout) {
260 		da9063_wdt_update_timeout(da9063, wdd->timeout);