Lines Matching refs:wdt

57 static void mlxreg_wdt_check_card_reset(struct mlxreg_wdt *wdt)
63 	if (wdt->reset_idx == -EINVAL)
66 	if (!(wdt->wdd.info->options & WDIOF_CARDRESET))
69 	reg_data = &wdt->pdata->data[wdt->reset_idx];
70 	rc = regmap_read(wdt->regmap, reg_data->reg, &regval);
73 			wdt->wdd.bootstatus = WDIOF_CARDRESET;
74 			dev_info(wdt->wdd.parent,
82 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);
83 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->action_idx];
85 	return regmap_update_bits(wdt->regmap, reg_data->reg, ~reg_data->mask,
91 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);
92 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->action_idx];
94 	return regmap_update_bits(wdt->regmap, reg_data->reg, ~reg_data->mask,
100 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);
101 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->ping_idx];
103 	return regmap_write_bits(wdt->regmap, reg_data->reg, ~reg_data->mask,
110 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);
111 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->timeout_idx];
115 	switch (wdt->wdt_type) {
117 		rc = regmap_read(wdt->regmap, reg_data->reg, &regval);
125 		rc = regmap_write(wdt->regmap, reg_data->reg, regval);
129 		rc = regmap_write(wdt->regmap, reg_data->reg, timeout);
134 		if (wdt->regmap_val_sz == 1) {
136 			rc = regmap_write(wdt->regmap, reg_data->reg, regval);
139 				rc = regmap_write(wdt->regmap,
143 			rc = regmap_write(wdt->regmap, reg_data->reg, timeout);
168 	struct mlxreg_wdt *wdt = watchdog_get_drvdata(wdd);
169 	struct mlxreg_core_data *reg_data = &wdt->pdata->data[wdt->tleft_idx];
173 	if (wdt->wdt_type == MLX_WDT_TYPE2) {
174 		rc = regmap_read(wdt->regmap, reg_data->reg, &regval);
177 		if (wdt->regmap_val_sz == 1) {
178 			rc = regmap_read(wdt->regmap, reg_data->reg, &lsb);
180 				rc = regmap_read(wdt->regmap,
185 			rc = regmap_read(wdt->regmap, reg_data->reg, &regval);
213 	.identity	= "mlx-wdt-main",
219 	.identity	= "mlx-wdt-aux",
222 static void mlxreg_wdt_config(struct mlxreg_wdt *wdt,
228 	wdt->reset_idx = -EINVAL;
231 			wdt->action_idx = i;
233 			wdt->timeout_idx = i;
235 			wdt->tleft_idx = i;
237 			wdt->ping_idx = i;
239 			wdt->reset_idx = i;
242 	wdt->pdata = pdata;
245 		wdt->wdd.info = &mlxreg_wdt_main_info;
247 		wdt->wdd.info = &mlxreg_wdt_aux_info;
249 	wdt->wdt_type = pdata->version;
250 	switch (wdt->wdt_type) {
252 		wdt->wdd.ops = &mlxreg_wdt_ops_type1;
253 		wdt->wdd.max_timeout = MLXREG_WDT_MAX_TIMEOUT_TYPE1;
256 		wdt->wdd.ops = &mlxreg_wdt_ops_type2;
257 		wdt->wdd.max_timeout = MLXREG_WDT_MAX_TIMEOUT_TYPE2;
260 		wdt->wdd.ops = &mlxreg_wdt_ops_type2;
261 		wdt->wdd.max_timeout = MLXREG_WDT_MAX_TIMEOUT_TYPE3;
267 	wdt->wdd.min_timeout = MLXREG_WDT_MIN_TIMEOUT;
270 static int mlxreg_wdt_init_timeout(struct mlxreg_wdt *wdt,
275 	timeout = pdata->data[wdt->timeout_idx].health_cntr;
276 	return mlxreg_wdt_set_timeout(&wdt->wdd, timeout);
283 	struct mlxreg_wdt *wdt;
291 	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
292 	if (!wdt)
295 	wdt->wdd.parent = dev;
296 	wdt->regmap = pdata->regmap;
297 	rc = regmap_get_val_bytes(wdt->regmap);
301 	wdt->regmap_val_sz = rc;
302 	mlxreg_wdt_config(wdt, pdata);
305 		watchdog_set_nowayout(&wdt->wdd, WATCHDOG_NOWAYOUT);
306 	watchdog_stop_on_reboot(&wdt->wdd);
307 	watchdog_stop_on_unregister(&wdt->wdd);
308 	watchdog_set_drvdata(&wdt->wdd, wdt);
309 	rc = mlxreg_wdt_init_timeout(wdt, pdata);
314 		rc = mlxreg_wdt_start(&wdt->wdd);
317 		set_bit(WDOG_HW_RUNNING, &wdt->wdd.status);
319 	mlxreg_wdt_check_card_reset(wdt);
320 	rc = devm_watchdog_register_device(dev, &wdt->wdd);
331 			.name = "mlx-wdt",
340 MODULE_ALIAS("platform:mlx-wdt");