7  * in the many subsystems. The watchdog has 16 different timeout periods
51 /* There are sixteen TOPs (timeout periods) that can be set in the watchdog. */
93 	u32			timeout;  member
123 					 unsigned int timeout, u32 *top_val)  in dw_wdt_find_best_top()  argument
128 	 * Find a TOP with timeout greater or equal to the requested number.  in dw_wdt_find_best_top()
129 	 * Note we'll select a TOP with maximum timeout if the requested  in dw_wdt_find_best_top()
130 	 * timeout couldn't be reached.  in dw_wdt_find_best_top()
133 		if (dw_wdt->timeouts[idx].sec >= timeout)  in dw_wdt_find_best_top()
150 	 * We'll find a timeout greater or equal to one second anyway because  in dw_wdt_get_min_timeout()
163 	struct dw_wdt_timeout *timeout = &dw_wdt->timeouts[DW_WDT_NUM_TOPS - 1];  in dw_wdt_get_max_timeout_ms()  local
166 	msec = (u64)timeout->sec * MSEC_PER_SEC + timeout->msec;  in dw_wdt_get_max_timeout_ms()
182 	 * In IRQ mode due to the two stages counter, the actual timeout is  in dw_wdt_get_timeout()
201 	unsigned int timeout;  in dw_wdt_set_timeout()  local
205 	 * Note IRQ mode being enabled means having a non-zero pre-timeout  in dw_wdt_set_timeout()
207 	 * requested timeout as possible since DW Watchdog IRQ mode is designed  in dw_wdt_set_timeout()
208 	 * in two stages way - first timeout rises the pre-timeout interrupt,  in dw_wdt_set_timeout()
209 	 * second timeout performs the system reset. So basically the effective  in dw_wdt_set_timeout()
212 	timeout = dw_wdt_find_best_top(dw_wdt, DIV_ROUND_UP(top_s, dw_wdt->rmod),  in dw_wdt_set_timeout()
215 		wdd->pretimeout = timeout;  in dw_wdt_set_timeout()
233 	 * In case users set bigger timeout value than HW can support,  in dw_wdt_set_timeout()
238 		wdd->timeout = timeout * dw_wdt->rmod;  in dw_wdt_set_timeout()
240 		wdd->timeout = top_s;  in dw_wdt_set_timeout()
250 	 * We ignore actual value of the timeout passed from user-space  in dw_wdt_set_pretimeout()
255 	dw_wdt_set_timeout(wdd, wdd->timeout);  in dw_wdt_set_pretimeout()
278 	dw_wdt_set_timeout(wdd, wdd->timeout);  in dw_wdt_start()
383 	dw_wdt->timeout = readl(dw_wdt->regs + WDOG_TIMEOUT_RANGE_REG_OFFSET);  in dw_wdt_suspend()
405 	writel(dw_wdt->timeout, dw_wdt->regs + WDOG_TIMEOUT_RANGE_REG_OFFSET);  in dw_wdt_resume()
595 	/* Enable normal reset without pre-timeout by default. */  in dw_wdt_drv_probe()
599 	 * Pre-timeout IRQ is optional, since some hardware may lack support  in dw_wdt_drv_probe()
638 	 * timeout. Otherwise use the default or the value provided through  in dw_wdt_drv_probe()
642 		wdd->timeout = dw_wdt_get_timeout(dw_wdt);  in dw_wdt_drv_probe()
645 		wdd->timeout = DW_WDT_DEFAULT_SECONDS;  in dw_wdt_drv_probe()
647 		/* Limit timeout value to hardware constraints. */  in dw_wdt_drv_probe()
648 		dw_wdt_set_timeout(wdd, wdd->timeout);  in dw_wdt_drv_probe()