2 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index adce36112b7f..75cae54ea7de 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -181,3 +181,30 @@ out_free:
 	return ret;
 }
 IWL_EXPORT_SYMBOL(iwl_acpi_get_mcc);
+
+u64 iwl_acpi_get_pwr_limit(struct device *dev)
+{
+	union acpi_object *data, *wifi_pkg;
+	u64 dflt_pwr_limit;
+
+	data = iwl_acpi_get_object(dev, ACPI_SPLC_METHOD);
+	if (IS_ERR(data)) {
+		dflt_pwr_limit = 0;
+		goto out;
+	}
+
+	wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data,
+					 ACPI_SPLC_WIFI_DATA_SIZE);
+	if (IS_ERR(wifi_pkg) ||
+	    wifi_pkg->package.elements[1].integer.value != ACPI_TYPE_INTEGER) {
+		dflt_pwr_limit = 0;
+		goto out_free;
+	}
+
+	dflt_pwr_limit = wifi_pkg->package.elements[1].integer.value;
+out_free:
+	kfree(data);
+out:
+	return dflt_pwr_limit;
+}
+IWL_EXPORT_SYMBOL(iwl_acpi_get_pwr_limit);
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
index fe9c1066c3b6..cb5f32c1d705 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
@@ -108,6 +108,8 @@ union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
  */
 int iwl_acpi_get_mcc(struct device *dev, char *mcc);
 
+u64 iwl_acpi_get_pwr_limit(struct device *dev);
+
 #else /* CONFIG_ACPI */
 
 static inline void *iwl_acpi_get_object(struct device *dev, acpi_string method)
@@ -127,5 +129,10 @@ static inline int iwl_acpi_get_mcc(struct device *dev, char *mcc)
 	return -ENOENT;
 }
 
+static inline u64 iwl_acpi_get_pwr_limit(struct device *dev)
+{
+	return 0;
+}
+
 #endif /* CONFIG_ACPI */
 #endif /* __iwl_fw_acpi__ */