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Commit faffd234 authored by Sebastian Reichel's avatar Sebastian Reichel Committed by Anton Vorontsov
Browse files

bq2415x_charger: Add DT support 



This adds DT support to the bq2415x driver.

Signed-off-by: default avatarSebastian Reichel <sre@debian.org>
Reviewed-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarAnton Vorontsov <anton@enomsg.org>
parent abce9770

drivers/power/bq2415x_charger.c

+52 −20
Original line number Diff line number Diff line
@@ -170,6 +170,7 @@ struct bq2415x_device { 
	struct bq2415x_platform_data init_data;

	struct power_supply charger;

	struct delayed_work work;

	struct power_supply *notify_psy;

	struct notifier_block nb;

	enum bq2415x_mode reported_mode;/* mode reported by hook function */

	enum bq2415x_mode mode;		/* current configured mode */
@@ -810,7 +811,7 @@ static int bq2415x_notifier_call(struct notifier_block *nb, 
	if (val != PSY_EVENT_PROP_CHANGED)

		return NOTIFY_OK;



	if (strcmp(psy->name, bq->init_data.notify_device) != 0)

	if (psy != bq->notify_psy)

		return NOTIFY_OK;



	dev_dbg(bq->dev, "notifier call was called\n");
@@ -1542,10 +1543,11 @@ static int bq2415x_probe(struct i2c_client *client, 
	int num;

	char *name;

	struct bq2415x_device *bq;

	struct power_supply *psy;

	struct device_node *np = client->dev.of_node;

	struct bq2415x_platform_data *pdata = client->dev.platform_data;



	if (!client->dev.platform_data) {

		dev_err(&client->dev, "platform data not set\n");

	if (!np && !pdata) {

		dev_err(&client->dev, "platform data missing\n");

		return -ENODEV;

	}
@@ -1570,6 +1572,17 @@ static int bq2415x_probe(struct i2c_client *client, 
		goto error_2;

	}



	if (np) {

		bq->notify_psy = power_supply_get_by_phandle(np, "ti,usb-charger-detection");



		if (!bq->notify_psy)

			return -EPROBE_DEFER;

	}

	else if (pdata->notify_device)

		bq->notify_psy = power_supply_get_by_name(pdata->notify_device);

	else

		bq->notify_psy = NULL;



	i2c_set_clientdata(client, bq);



	bq->id = num;
@@ -1581,8 +1594,34 @@ static int bq2415x_probe(struct i2c_client *client, 
	bq->autotimer = 0;

	bq->automode = 0;



	memcpy(&bq->init_data, client->dev.platform_data,

			sizeof(bq->init_data));

	if (np) {

		ret = of_property_read_u32(np, "ti,current-limit",

				&bq->init_data.current_limit);

		if (ret)

			return ret;

		ret = of_property_read_u32(np, "ti,weak-battery-voltage",

				&bq->init_data.weak_battery_voltage);

		if (ret)

			return ret;

		ret = of_property_read_u32(np, "ti,battery-regulation-voltage",

				&bq->init_data.battery_regulation_voltage);

		if (ret)

			return ret;

		ret = of_property_read_u32(np, "ti,charge-current",

				&bq->init_data.charge_current);

		if (ret)

			return ret;

		ret = of_property_read_u32(np, "ti,termination-current",

				&bq->init_data.termination_current);

		if (ret)

			return ret;

		ret = of_property_read_u32(np, "ti,resistor-sense",

				&bq->init_data.resistor_sense);

		if (ret)

			return ret;

	} else {

		memcpy(&bq->init_data, pdata, sizeof(bq->init_data));

	}



	bq2415x_reset_chip(bq);
@@ -1604,25 +1643,18 @@ static int bq2415x_probe(struct i2c_client *client, 
		goto error_4;

	}



	if (bq->init_data.notify_device) {

	if (bq->notify_psy) {

		bq->nb.notifier_call = bq2415x_notifier_call;

		ret = power_supply_reg_notifier(&bq->nb);

		if (ret) {

			dev_err(bq->dev, "failed to reg notifier: %d\n", ret);

			goto error_5;

		}

		psy = power_supply_get_by_name(bq->init_data.notify_device);

		if (psy) {



		/* Query for initial reported_mode and set it */

			bq2415x_notifier_call(&bq->nb,

					PSY_EVENT_PROP_CHANGED, psy);

		bq2415x_notifier_call(&bq->nb, PSY_EVENT_PROP_CHANGED, bq->notify_psy);

		bq2415x_set_mode(bq, bq->reported_mode);

		} else {

			dev_info(bq->dev, "notifier power supply device (%s) "

				"for automode is not registred yet... "

				"automode will not work without that device\n",

				bq->init_data.notify_device);

		}



		bq->automode = 1;

		dev_info(bq->dev, "automode enabled\n");

	} else {
@@ -1657,7 +1689,7 @@ static int bq2415x_remove(struct i2c_client *client) 
{

	struct bq2415x_device *bq = i2c_get_clientdata(client);



	if (bq->init_data.notify_device)

	if (bq->notify_psy)

		power_supply_unreg_notifier(&bq->nb);



	bq2415x_sysfs_exit(bq);