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Subject[RFC PATCH 5/5] power: generic-adc-battery: Add capacity handling
Date
From: Marek Belisko <marek.belisko@gmail.com>

Signed-off-by: Marek Belisko <marek.belisko@gmail.com>
---
drivers/power/supply/generic-adc-battery.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/power/supply/generic-adc-battery.c b/drivers/power/supply/generic-adc-battery.c
index 0d27b59..9ce51d2 100644
--- a/drivers/power/supply/generic-adc-battery.c
+++ b/drivers/power/supply/generic-adc-battery.c
@@ -24,6 +24,7 @@
#include <linux/iio/types.h>
#include <linux/power/generic-adc-battery.h>
#include <linux/of_gpio.h>
+#include <linux/power/generic-fuel-gauge.h>

#define JITTER_DEFAULT 10 /* hope 10ms is enough */

@@ -81,6 +82,7 @@ static const enum power_supply_property gab_props[] = {
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_CAPACITY,
};

/*
@@ -202,6 +204,18 @@ static int gab_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = bat_info->name;
break;
+ case POWER_SUPPLY_PROP_CAPACITY:
+ {
+ int ret, curr, voltage;
+
+ ret = read_channel(adc_bat, POWER_SUPPLY_PROP_CURRENT_NOW, &curr);
+ ret |= read_channel(adc_bat, POWER_SUPPLY_PROP_VOLTAGE_NOW, &voltage);
+ if (ret < 0)
+ goto err;
+
+ val->intval = fuel_level_LiIon(voltage, curr, 10);
+ }
+ break;
default:
return -EINVAL;
}
--
2.7.4
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