10  * - Base prescale of (2 << 25), providing tick duration T_0: 168ms @ 200MHz
11  * - PRESCALE: logarithmic prescaler adding a factor of {1, 2, 4, 8}
12  * - Phase 1: Times out after (PHASE1 + 1) × PRESCALE × T_0
14  * - Phase 2: starts after phase 1, times out after (PHASE2 + 1) × PRESCALE × T_0
107 static int otto_wdt_tick_ms(struct otto_wdt_ctrl *ctrl, int prescale)  in otto_wdt_tick_ms()  argument
109 	return DIV_ROUND_CLOSEST(1 << (25 + prescale), ctrl->clk_rate_khz);  in otto_wdt_tick_ms()
133 	unsigned int prescale;  in otto_wdt_determine_timeouts()  local
138 		prescale = prescale_next;  in otto_wdt_determine_timeouts()
139 		if (prescale > OTTO_WDT_PRESCALE_MAX)  in otto_wdt_determine_timeouts()
142 		tick_ms = otto_wdt_tick_ms(ctrl, prescale);  in otto_wdt_determine_timeouts()
156 	v |= FIELD_PREP(OTTO_WDT_CTRL_PRESCALE, prescale);  in otto_wdt_determine_timeouts()