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https://github.com/LineageOS/android_kernel_fxtec_sm6115.git
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20f1adae87
To support multiple battery profile with same battery id but with different age level, add a function to select best profile based on battery id and age level. Change-Id: I4193529744b1efa342939008de0a9a55b3ca389a Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
79 lines
3.0 KiB
C
79 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2013-2014, 2016-2019 The Linux Foundation. All rights reserved.
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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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* @batt_id_kohm: Battery ID in KOhms for which we want to find the profile.
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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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int batt_id_kohm, const char *batt_type);
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/**
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* of_batterydata_get_best_aged_profile() - Find best aged battery profile
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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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* @batt_id_kohm: Battery ID in KOhms for which we want to find the profile.
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* @batt_age_level: Battery age level.
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* @avail_age_level: Available battery age level.
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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 and age level.
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*/
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struct device_node *of_batterydata_get_best_aged_profile(
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const struct device_node *batterydata_container_node,
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int batt_id_kohm, int batt_age_level, int *avail_age_level);
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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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int batt_id_kohm, const char *batt_type)
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{
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return NULL;
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}
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static inline struct device_node *of_batterydata_get_best_aged_profile(
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const struct device_node *batterydata_container_node,
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int batt_id_kohm, u32 batt_age_level)
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{
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return NULL;
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}
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#endif /* CONFIG_OF_BATTERYDATA */
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