power: supply: sc27xx: Add one property to read charge voltage (0a4f97a1) · Commits · 戴 / test

drivers/power/supply/sc27xx_fuel_gauge.c

+29 −0

Original line number	Diff line number	Diff line
		@@ -72,6 +72,7 @@
		* @lock: protect the structure
		* @gpiod: GPIO for battery detection
		* @channel: IIO channel to get battery temperature
		* @charge_chan: IIO channel to get charge voltage
		* @internal_resist: the battery internal resistance in mOhm
		* @total_cap: the total capacity of the battery in mAh
		* @init_cap: the initial capacity of the battery in mAh
		@@ -92,6 +93,7 @@ struct sc27xx_fgu_data {
		struct mutex lock;
		struct gpio_desc *gpiod;
		struct iio_channel *channel;
		struct iio_channel *charge_chan;
		bool bat_present;
		int internal_resist;
		int total_cap;
		@@ -391,6 +393,18 @@ static int sc27xx_fgu_get_vbat_ocv(struct sc27xx_fgu_data data, int val)
		return 0;
		}

		static int sc27xx_fgu_get_charge_vol(struct sc27xx_fgu_data data, int val)
		{
		int ret, vol;

		ret = iio_read_channel_processed(data->charge_chan, &vol);
		if (ret < 0)
		return ret;

		val = vol 1000;
		return 0;
		}

		static int sc27xx_fgu_get_temp(struct sc27xx_fgu_data data, int temp)
		{
		return iio_read_channel_processed(data->channel, temp);
		@@ -502,6 +516,14 @@ static int sc27xx_fgu_get_property(struct power_supply *psy,
		val->intval = value;
		break;

		case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
		ret = sc27xx_fgu_get_charge_vol(data, &value);
		if (ret)
		goto error;

		val->intval = value;
		break;

		case POWER_SUPPLY_PROP_CURRENT_NOW:
		case POWER_SUPPLY_PROP_CURRENT_AVG:
		ret = sc27xx_fgu_get_current(data, &value);
		@@ -567,6 +589,7 @@ static enum power_supply_property sc27xx_fgu_props[] = {
		POWER_SUPPLY_PROP_VOLTAGE_OCV,
		POWER_SUPPLY_PROP_CURRENT_NOW,
		POWER_SUPPLY_PROP_CURRENT_AVG,
		POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
		};

		static const struct power_supply_desc sc27xx_fgu_desc = {
		@@ -907,6 +930,12 @@ static int sc27xx_fgu_probe(struct platform_device *pdev)
		return PTR_ERR(data->channel);
		}

		data->charge_chan = devm_iio_channel_get(&pdev->dev, "charge-vol");
		if (IS_ERR(data->charge_chan)) {
		dev_err(&pdev->dev, "failed to get charge IIO channel\n");
		return PTR_ERR(data->charge_chan);
		}

		data->gpiod = devm_gpiod_get(&pdev->dev, "bat-detect", GPIOD_IN);
		if (IS_ERR(data->gpiod)) {
		dev_err(&pdev->dev, "failed to get battery detection GPIO\n");

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