56 static void mlxreg_wdt_check_card_reset(struct mlxreg_wdt *wdt)  in mlxreg_wdt_check_card_reset()  argument
62 	if (wdt->reset_idx == -EINVAL)  in mlxreg_wdt_check_card_reset()
65 	if (!(wdt->wdd.info->options & WDIOF_CARDRESET))  in mlxreg_wdt_check_card_reset()
68 	reg_data = &wdt->pdata->data[wdt->reset_idx];  in mlxreg_wdt_check_card_reset()
69 	rc = regmap_read(wdt->regmap, reg_data->reg, &regval);  in mlxreg_wdt_check_card_reset()
72 			wdt->wdd.bootstatus = WDIOF_CARDRESET;  in mlxreg_wdt_check_card_reset()
73 			dev_info(wdt->wdd.parent,  in mlxreg_wdt_check_card_reset()
81 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);  in mlxreg_wdt_start()  local
82 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->action_idx];  in mlxreg_wdt_start()
84 	return regmap_update_bits(wdt->regmap, reg_data->reg, ~reg_data->mask,  in mlxreg_wdt_start()
90 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);  in mlxreg_wdt_stop()  local
91 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->action_idx];  in mlxreg_wdt_stop()
93 	return regmap_update_bits(wdt->regmap, reg_data->reg, ~reg_data->mask,  in mlxreg_wdt_stop()
99 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);  in mlxreg_wdt_ping()  local
100 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->ping_idx];  in mlxreg_wdt_ping()
102 	return regmap_write_bits(wdt->regmap, reg_data->reg, ~reg_data->mask,  in mlxreg_wdt_ping()
109 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);  in mlxreg_wdt_set_timeout()  local
110 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->timeout_idx];  in mlxreg_wdt_set_timeout()
114 	switch (wdt->wdt_type) {  in mlxreg_wdt_set_timeout()
116 		rc = regmap_read(wdt->regmap, reg_data->reg, &regval);  in mlxreg_wdt_set_timeout()
124 		rc = regmap_write(wdt->regmap, reg_data->reg, regval);  in mlxreg_wdt_set_timeout()
128 		rc = regmap_write(wdt->regmap, reg_data->reg, timeout);  in mlxreg_wdt_set_timeout()
133 		if (wdt->regmap_val_sz == 1) {  in mlxreg_wdt_set_timeout()
135 			rc = regmap_write(wdt->regmap, reg_data->reg, regval);  in mlxreg_wdt_set_timeout()
138 				rc = regmap_write(wdt->regmap,  in mlxreg_wdt_set_timeout()
142 			rc = regmap_write(wdt->regmap, reg_data->reg, timeout);  in mlxreg_wdt_set_timeout()
167 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);  in mlxreg_wdt_get_timeleft()  local
168 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->tleft_idx];  in mlxreg_wdt_get_timeleft()
172 	if (wdt->wdt_type == MLX_WDT_TYPE2) {  in mlxreg_wdt_get_timeleft()
173 		rc = regmap_read(wdt->regmap, reg_data->reg, &regval);  in mlxreg_wdt_get_timeleft()
176 		if (wdt->regmap_val_sz == 1) {  in mlxreg_wdt_get_timeleft()
177 			rc = regmap_read(wdt->regmap, reg_data->reg, &lsb);  in mlxreg_wdt_get_timeleft()
179 				rc = regmap_read(wdt->regmap,  in mlxreg_wdt_get_timeleft()
184 			rc = regmap_read(wdt->regmap, reg_data->reg, &regval);  in mlxreg_wdt_get_timeleft()
212 	.identity	= "mlx-wdt-main",
218 	.identity	= "mlx-wdt-aux",
221 static void mlxreg_wdt_config(struct mlxreg_wdt *wdt,  in mlxreg_wdt_config()  argument
227 	wdt->reset_idx = -EINVAL;  in mlxreg_wdt_config()
230 			wdt->action_idx = i;  in mlxreg_wdt_config()
232 			wdt->timeout_idx = i;  in mlxreg_wdt_config()
234 			wdt->tleft_idx = i;  in mlxreg_wdt_config()
236 			wdt->ping_idx = i;  in mlxreg_wdt_config()
238 			wdt->reset_idx = i;  in mlxreg_wdt_config()
241 	wdt->pdata = pdata;  in mlxreg_wdt_config()
244 		wdt->wdd.info = &mlxreg_wdt_main_info;  in mlxreg_wdt_config()
246 		wdt->wdd.info = &mlxreg_wdt_aux_info;  in mlxreg_wdt_config()
248 	wdt->wdt_type = pdata->version;  in mlxreg_wdt_config()
249 	switch (wdt->wdt_type) {  in mlxreg_wdt_config()
251 		wdt->wdd.ops = &mlxreg_wdt_ops_type1;  in mlxreg_wdt_config()
252 		wdt->wdd.max_timeout = MLXREG_WDT_MAX_TIMEOUT_TYPE1;  in mlxreg_wdt_config()
255 		wdt->wdd.ops = &mlxreg_wdt_ops_type2;  in mlxreg_wdt_config()
256 		wdt->wdd.max_timeout = MLXREG_WDT_MAX_TIMEOUT_TYPE2;  in mlxreg_wdt_config()
259 		wdt->wdd.ops = &mlxreg_wdt_ops_type2;  in mlxreg_wdt_config()
260 		wdt->wdd.max_timeout = MLXREG_WDT_MAX_TIMEOUT_TYPE3;  in mlxreg_wdt_config()
266 	wdt->wdd.min_timeout = MLXREG_WDT_MIN_TIMEOUT;  in mlxreg_wdt_config()
269 static int mlxreg_wdt_init_timeout(struct mlxreg_wdt *wdt,  in mlxreg_wdt_init_timeout()  argument
274 	timeout = pdata->data[wdt->timeout_idx].health_cntr;  in mlxreg_wdt_init_timeout()
275 	return mlxreg_wdt_set_timeout(&wdt->wdd, timeout);  in mlxreg_wdt_init_timeout()
282 	struct mlxreg_wdt *wdt;  in mlxreg_wdt_probe()  local
290 	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);  in mlxreg_wdt_probe()
291 	if (!wdt)  in mlxreg_wdt_probe()
294 	wdt->wdd.parent = dev;  in mlxreg_wdt_probe()
295 	wdt->regmap = pdata->regmap;  in mlxreg_wdt_probe()
296 	rc = regmap_get_val_bytes(wdt->regmap);  in mlxreg_wdt_probe()
300 	wdt->regmap_val_sz = rc;  in mlxreg_wdt_probe()
301 	mlxreg_wdt_config(wdt, pdata);  in mlxreg_wdt_probe()
304 		watchdog_set_nowayout(&wdt->wdd, WATCHDOG_NOWAYOUT);  in mlxreg_wdt_probe()
305 	watchdog_stop_on_reboot(&wdt->wdd);  in mlxreg_wdt_probe()
306 	watchdog_stop_on_unregister(&wdt->wdd);  in mlxreg_wdt_probe()
307 	watchdog_set_drvdata(&wdt->wdd, wdt);  in mlxreg_wdt_probe()
308 	rc = mlxreg_wdt_init_timeout(wdt, pdata);  in mlxreg_wdt_probe()
313 		rc = mlxreg_wdt_start(&wdt->wdd);  in mlxreg_wdt_probe()
316 		set_bit(WDOG_HW_RUNNING, &wdt->wdd.status);  in mlxreg_wdt_probe()
318 	mlxreg_wdt_check_card_reset(wdt);  in mlxreg_wdt_probe()
319 	rc = devm_watchdog_register_device(dev, &wdt->wdd);  in mlxreg_wdt_probe()
330 			.name = "mlx-wdt",
339 MODULE_ALIAS("platform:mlx-wdt");