68 	struct wdtbd96801 *w = watchdog_get_drvdata(wdt);  in bd96801_wdt_ping()  local
70 	return regmap_update_bits(w->regmap, BD96801_REG_WD_FEED,  in bd96801_wdt_ping()
76 	struct wdtbd96801 *w = watchdog_get_drvdata(wdt);  in bd96801_wdt_start()  local
78 	return regmap_update_bits(w->regmap, BD96801_REG_WD_CONF,  in bd96801_wdt_start()
84 	struct wdtbd96801 *w = watchdog_get_drvdata(wdt);  in bd96801_wdt_stop()  local
86 	return regmap_update_bits(w->regmap, BD96801_REG_WD_CONF,  in bd96801_wdt_stop()
166 static int bd96801_set_wdt_mode(struct wdtbd96801 *w, unsigned int hw_margin,  in bd96801_set_wdt_mode()  argument
170 	struct device *dev = w->dev;  in bd96801_set_wdt_mode()
211 		w->wdt.min_hw_heartbeat_ms = min / 10;  in bd96801_set_wdt_mode()
220 	w->wdt.max_hw_heartbeat_ms = hw_margin / 10;  in bd96801_set_wdt_mode()
226 	ret = regmap_update_bits(w->regmap, BD96801_REG_WD_TMO,  in bd96801_set_wdt_mode()
231 	ret = regmap_update_bits(w->regmap, BD96801_REG_WD_CONF,  in bd96801_set_wdt_mode()
237 static int bd96801_set_heartbeat_from_hw(struct wdtbd96801 *w,  in bd96801_set_heartbeat_from_hw()  argument
249 		dev_err(w->dev, "watchdog set to Q&A mode - exiting\n");  in bd96801_set_heartbeat_from_hw()
253 	ret = regmap_read(w->regmap, BD96801_REG_WD_TMO, &val);  in bd96801_set_heartbeat_from_hw()
261 	w->wdt.max_hw_heartbeat_ms = (fast << sel) / USEC_PER_MSEC;  in bd96801_set_heartbeat_from_hw()
264 		w->wdt.min_hw_heartbeat_ms = fast / USEC_PER_MSEC;  in bd96801_set_heartbeat_from_hw()
269 static int init_wdg_hw(struct wdtbd96801 *w)  in init_wdg_hw()  argument
275 	count = device_property_count_u32(w->dev->parent, "rohm,hw-timeout-ms");  in init_wdg_hw()
283 		ret = device_property_read_u32_array(w->dev->parent,  in init_wdg_hw()
303 	ret = bd96801_set_wdt_mode(w, hw_margin_max, hw_margin_min);  in init_wdg_hw()
307 	ret = device_property_match_string(w->dev->parent, "rohm,wdg-action",  in init_wdg_hw()
310 		ret = regmap_update_bits(w->regmap, BD96801_REG_WD_CONF,  in init_wdg_hw()
316 	ret = device_property_match_string(w->dev->parent, "rohm,wdg-action",  in init_wdg_hw()
319 		ret = regmap_update_bits(w->regmap, BD96801_REG_WD_CONF,  in init_wdg_hw()
337 	struct wdtbd96801 *w;  in bd96801_wdt_probe()  local
341 	w = devm_kzalloc(&pdev->dev, sizeof(*w), GFP_KERNEL);  in bd96801_wdt_probe()
342 	if (!w)  in bd96801_wdt_probe()
345 	w->regmap = dev_get_regmap(pdev->dev.parent, NULL);  in bd96801_wdt_probe()
346 	w->dev = &pdev->dev;  in bd96801_wdt_probe()
348 	w->wdt.info = &bd96801_wdt_info;  in bd96801_wdt_probe()
349 	w->wdt.ops =  &bd96801_wdt_ops;  in bd96801_wdt_probe()
350 	w->wdt.parent = pdev->dev.parent;  in bd96801_wdt_probe()
351 	w->wdt.timeout = DEFAULT_TIMEOUT;  in bd96801_wdt_probe()
352 	watchdog_set_drvdata(&w->wdt, w);  in bd96801_wdt_probe()
354 	ret = regmap_read(w->regmap, BD96801_REG_WD_CONF, &val);  in bd96801_wdt_probe()
367 		ret = bd96801_set_heartbeat_from_hw(w, val);  in bd96801_wdt_probe()
371 		set_bit(WDOG_HW_RUNNING, &w->wdt.status);  in bd96801_wdt_probe()
374 		ret = init_wdg_hw(w);  in bd96801_wdt_probe()
379 	dev_dbg(w->dev, "heartbeat set to %u - %u\n",  in bd96801_wdt_probe()
380 		w->wdt.min_hw_heartbeat_ms, w->wdt.max_hw_heartbeat_ms);  in bd96801_wdt_probe()
382 	watchdog_init_timeout(&w->wdt, 0, pdev->dev.parent);  in bd96801_wdt_probe()
383 	watchdog_set_nowayout(&w->wdt, nowayout);  in bd96801_wdt_probe()
384 	watchdog_stop_on_reboot(&w->wdt);  in bd96801_wdt_probe()
397 	return devm_watchdog_register_device(&pdev->dev, &w->wdt);  in bd96801_wdt_probe()