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power: supply: sbs-battery: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED support
Add support for reporting the SBS battery's condition flag to userspace using the new "Calibration required" health status. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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7721c2fd26
commit
6f72a07aa6
1 changed files with 24 additions and 3 deletions
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@ -23,6 +23,7 @@
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enum {
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REG_MANUFACTURER_DATA,
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REG_BATTERY_MODE,
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REG_TEMPERATURE,
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REG_VOLTAGE,
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REG_CURRENT_NOW,
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@ -94,6 +95,8 @@ static const struct chip_data {
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} sbs_data[] = {
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[REG_MANUFACTURER_DATA] =
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SBS_DATA(POWER_SUPPLY_PROP_PRESENT, 0x00, 0, 65535),
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[REG_BATTERY_MODE] =
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SBS_DATA(-1, 0x03, 0, 65535),
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[REG_TEMPERATURE] =
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SBS_DATA(POWER_SUPPLY_PROP_TEMP, 0x08, 0, 65535),
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[REG_VOLTAGE] =
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@ -366,6 +369,17 @@ static int sbs_status_correct(struct i2c_client *client, int *intval)
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return 0;
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}
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static bool sbs_bat_needs_calibration(struct i2c_client *client)
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{
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int ret;
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ret = sbs_read_word_data(client, sbs_data[REG_BATTERY_MODE].addr);
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if (ret < 0)
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return false;
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return !!(ret & BIT(7));
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}
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static int sbs_get_battery_presence_and_health(
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struct i2c_client *client, enum power_supply_property psp,
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union power_supply_propval *val)
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@ -385,9 +399,14 @@ static int sbs_get_battery_presence_and_health(
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if (psp == POWER_SUPPLY_PROP_PRESENT)
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val->intval = 1; /* battery present */
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else /* POWER_SUPPLY_PROP_HEALTH */
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else { /* POWER_SUPPLY_PROP_HEALTH */
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if (sbs_bat_needs_calibration(client)) {
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val->intval = POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED;
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} else {
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/* SBS spec doesn't have a general health command. */
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val->intval = POWER_SUPPLY_HEALTH_UNKNOWN;
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}
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}
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return 0;
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}
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@ -441,6 +460,8 @@ static int sbs_get_ti_battery_presence_and_health(
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val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
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else if (ret == 0x0C)
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val->intval = POWER_SUPPLY_HEALTH_DEAD;
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else if (sbs_bat_needs_calibration(client))
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val->intval = POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED;
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else
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val->intval = POWER_SUPPLY_HEALTH_GOOD;
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}
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