1 files changed, 64 insertions, 0 deletions
diff --git a/include/linux/of_batterydata.h b/include/linux/of_batterydata.h
new file mode 100644
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+++ b/include/linux/of_batterydata.h
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+/* Copyright (c) 2013-2014, 2016 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/of.h>
+#include <linux/batterydata-lib.h>
+
+#ifdef CONFIG_OF_BATTERYDATA
+/**
+ * of_batterydata_read_data() - Populate battery data from the device tree
+ * @container_node: pointer to the battery-data container device node
+ *		containing the profile nodes.
+ * @batt_data: pointer to an allocated bms_battery_data structure that the
+ *		loaded profile will be written to.
+ * @batt_id_uv: ADC voltage of the battery id line used to differentiate
+ *		between different battery profiles. If there are multiple
+ *		battery data in the device tree, the one with the closest
+ *		battery id resistance will be automatically loaded.
+ *
+ * This routine loads the closest match battery data from device tree based on
+ * the battery id reading. Then, it will try to load all the relevant data from
+ * the device tree battery data profile.
+ *
+ * If any of the lookup table pointers are NULL, this routine will skip trying
+ * to read them.
+ */
+int of_batterydata_read_data(struct device_node *container_node,
+				struct bms_battery_data *batt_data,
+				int batt_id_uv);
+/**
+ * of_batterydata_get_best_profile() - Find matching battery data device node
+ * @batterydata_container_node: pointer to the battery-data container device
+ *		node containing the profile nodes.
+ * @batt_id_kohm: Battery ID in KOhms for which we want to find the profile.
+ * @batt_type: Battery type which we want to force load the profile.
+ *
+ * This routine returns a device_node pointer to the closest match battery data
+ * from device tree based on the battery id reading.
+ */
+struct device_node *of_batterydata_get_best_profile(
+		struct device_node *batterydata_container_node,
+		int batt_id_kohm, const char *batt_type);
+#else
+static inline int of_batterydata_read_data(struct device_node *container_node,
+				struct bms_battery_data *batt_data,
+				int batt_id_uv)
+{
+	return -ENXIO;
+}
+static inline struct device_node *of_batterydata_get_best_profile(
+		struct device_node *batterydata_container_node,
+		int batt_id_kohm, const char *batt_type)
+{
+	return -ENXIO;
+}
+#endif /* CONFIG_OF_QPNP */