pinctrl: scmi: ignore PIN_CONFIG_PERSIST_STATE

The PIN_CONFIG_PERSIST_STATE setting ensures that the pin state persists
across a sleep or controller reset.  The SCMI spec does not have an
equivalent command to this so just ignore it.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>

Author: Dan Carpenter

drivers/pinctrl/pinctrl-scmi.c

@@ -361,7 +361,7 @@ static int pinctrl_scmi_pinconf_set(struct pinctrl_dev *pctldev,
 				    unsigned long *configs,
 				    unsigned int num_configs)
 {
-	int i, ret;
+	int i, cnt, ret;
 	struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev);
 	enum scmi_pinctrl_conf_type config_type[SCMI_NUM_CONFIGS];
 	u32 config_value[SCMI_NUM_CONFIGS];
@@ -377,17 +377,21 @@ static int pinctrl_scmi_pinconf_set(struct pinctrl_dev *pctldev,
 	if (ret)
 		return ret;
 
+	cnt = 0;
 	for (i = 0; i < num_configs; i++) {
 		param = pinconf_to_config_param(configs[i]);
-		ret = pinctrl_scmi_map_pinconf_type_set(param, &p_config_type[i]);
+		if (param == PIN_CONFIG_PERSIST_STATE)
+			continue;
+		ret = pinctrl_scmi_map_pinconf_type_set(param, &p_config_type[cnt]);
 		if (ret) {
 			dev_err(pmx->dev, "Error map pinconf_type %d\n", ret);
 			goto free_config;
 		}
-		p_config_value[i] = pinconf_to_config_argument(configs[i]);
+		p_config_value[cnt] = pinconf_to_config_argument(configs[i]);
+		cnt++;
 	}
 
-	ret = pinctrl_ops->settings_conf(pmx->ph, pin, PIN_TYPE, num_configs,
+	ret = pinctrl_ops->settings_conf(pmx->ph, pin, PIN_TYPE, cnt,
 					 p_config_type,  p_config_value);
 	if (ret)
 		dev_err(pmx->dev, "Error parsing config %d\n", ret);