4  * SPDX-License-Identifier: Apache-2.0
43  * @param exp exponent part of prescaler
49  *  count = (timeout * pclk / INTERNAL_DIVIDER * (2^prescaler_exp) ) - 1
56 	const struct gd32_wwdgt_config *config = dev->config;  in gd32_wwdgt_calc_ticks()
60 				       (clock_control_subsys_t)&config->clkid,  in gd32_wwdgt_calc_ticks()
64 		/ (WWDGT_INTERNAL_DIVIDER * (1 << exp) * MSEC_PER_SEC) - 1)  in gd32_wwdgt_calc_ticks()
76  * @return 0 on success, -EINVAL if the window-max is out of range
84 		uint32_t max_count = gd32_wwdgt_calc_ticks(dev, win->max, shift);  in gd32_wwdgt_calc_window()
89 			if (win->min == 0U) {  in gd32_wwdgt_calc_window()
92 				*wval = gd32_wwdgt_calc_ticks(dev, win->min, shift);  in gd32_wwdgt_calc_window()
99 	return -EINVAL;  in gd32_wwdgt_calc_window()
111 		return -ENOTSUP;  in gd32_wwdgt_setup()
117 		return -ENOTSUP;  in gd32_wwdgt_setup()
132 	return -EPERM;  in gd32_wwdgt_disable()
141 	struct gd32_wwdgt_data *data = dev->data;  in gd32_wwdgt_install_timeout()
143 	if (config->window.max == 0U) {  in gd32_wwdgt_install_timeout()
144 		LOG_ERR("window.max must be non-zero");  in gd32_wwdgt_install_timeout()
145 		return -EINVAL;  in gd32_wwdgt_install_timeout()
148 	if (gd32_wwdgt_calc_window(dev, &config->window, &counter, &window,  in gd32_wwdgt_install_timeout()
151 		return -EINVAL;  in gd32_wwdgt_install_timeout()
154 	data->callback = config->callback;  in gd32_wwdgt_install_timeout()
155 	data->counter = counter;  in gd32_wwdgt_install_timeout()
164 	struct gd32_wwdgt_data *data = dev->data;  in gd32_wwdgt_feed()
168 	wwdgt_counter_update(data->counter);  in gd32_wwdgt_feed()
175 	struct gd32_wwdgt_data *data = dev->data;  in gd32_wwdgt_isr()
180 		if (data->callback != NULL) {  in gd32_wwdgt_isr()
181 			data->callback(dev, 0);  in gd32_wwdgt_isr()
204 	const struct gd32_wwdgt_config *config = dev->config;  in gd32_wwdgt_init()
207 			       (clock_control_subsys_t)&config->clkid);  in gd32_wwdgt_init()
208 	(void)reset_line_toggle_dt(&config->reset);  in gd32_wwdgt_init()