forked from rubenslte/android_kernel_samsung_msm8226
Xiaozhe Shi
7ef86d94d9
Add the of_batterydata driver to parse device tree battery data. Battery data contains battery profile information and is used by the charger and the BMS drivers. Change-Id: Ibe03800be0d51e82194c9385c6348c5a6c92711d Signed-off-by: Xiaozhe Shi <xiaozhes@codeaurora.org>
46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
/* Copyright (c) 2013, 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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#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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#endif /* CONFIG_OF_QPNP */
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