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