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Commit 33de94a4 authored by Ashay Jaiswal's avatar Ashay Jaiswal
Browse files

qcom: smb138x/smb1351: add support to expose BATFET configuration 



Add support to expose how BATFET of main and parallel chargers
are configured. BATFET configuration is used for configuring
FCC of main charger.

Change-Id: I1fa47840dee08754425dc4540a61401313f0878a
Signed-off-by: default avatarAshay Jaiswal <ashayj@codeaurora.org>
parent 45142d95

Documentation/devicetree/bindings/power/supply/qcom/smb1351-charger.txt

+2 −0
Original line number Diff line number Diff line
@@ -71,6 +71,8 @@ Optional Properties: 
				If not specified the default value is active-low.

- qcom,parallel-external-current-sense If present specifies external rsense is

				used for charge current sensing.

- qcom,stacked-batfet:		Boolean flag. Specifies if parallel charger has stacked BATFET

				cofiguration.



Example for standalone charger:

Documentation/devicetree/bindings/power/supply/qcom/smb138x-charger.txt

+6 −0
Original line number Diff line number Diff line
@@ -93,6 +93,12 @@ Charger specific properties: 
		will use io-channel-names to match IIO input names

		with IIO specifiers.



- qcom,stacked-batfet

  Usage:      optional

  Value type: <empty>

  Definition: boolean flag. Specifies if parallel charger has stacked BATFET

              cofiguration.



================================================

Second Level Nodes - SMB138X Charger Peripherals

================================================

drivers/power/supply/qcom/smb1351-charger.c

+9 −0
Original line number Diff line number Diff line
@@ -461,6 +461,7 @@ struct smb1351_charger { 


	int			parallel_pin_polarity_setting;

	int			parallel_mode;

	int			pl_batfet_mode;

	bool			parallel_charger;

	bool			parallel_charger_suspended;

	bool			bms_controlled_charging;
@@ -1417,6 +1418,7 @@ static enum power_supply_property smb1351_parallel_properties[] = { 
	POWER_SUPPLY_PROP_CHARGE_TYPE,

	POWER_SUPPLY_PROP_PARALLEL_MODE,

	POWER_SUPPLY_PROP_INPUT_SUSPEND,

	POWER_SUPPLY_PROP_PARALLEL_BATFET_MODE,

};



static int smb1351_parallel_set_chg_suspend(struct smb1351_charger *chip,
@@ -1706,6 +1708,9 @@ static int smb1351_parallel_get_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_INPUT_SUSPEND:

		val->intval = chip->parallel_charger_suspended;

		break;

	case POWER_SUPPLY_PROP_PARALLEL_BATFET_MODE:

		val->intval = chip->pl_batfet_mode;

		break;

	default:

		return -EINVAL;

	}
@@ -3197,6 +3202,10 @@ static int smb1351_parallel_charger_probe(struct i2c_client *client, 
	else

		chip->parallel_mode = POWER_SUPPLY_PL_USBIN_USBIN;



	chip->pl_batfet_mode = POWER_SUPPLY_PL_NON_STACKED_BATFET;

	if (of_property_read_bool(node, "qcom,stacked-batfet"))

		chip->pl_batfet_mode = POWER_SUPPLY_PL_STACKED_BATFET;



	i2c_set_clientdata(client, chip);



	chip->parallel_psy_d.name = "parallel";

drivers/power/supply/qcom/smb138x-charger.c

+9 −0
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ struct smb_dt_props { 
	int	chg_temp_max_mdegc;

	int	connector_temp_max_mdegc;

	int	pl_mode;

	int	pl_batfet_mode;

};



struct smb138x {
@@ -205,6 +206,10 @@ static int smb138x_parse_dt(struct smb138x *chip) 
	if (rc < 0)

		chip->dt.connector_temp_max_mdegc = 105000;



	chip->dt.pl_batfet_mode = POWER_SUPPLY_PL_NON_STACKED_BATFET;

	if (of_property_read_bool(node, "qcom,stacked-batfet"))

		chip->dt.pl_batfet_mode = POWER_SUPPLY_PL_STACKED_BATFET;



	return 0;

}
@@ -664,6 +669,7 @@ static enum power_supply_property smb138x_parallel_props[] = { 
	POWER_SUPPLY_PROP_PARALLEL_MODE,

	POWER_SUPPLY_PROP_CONNECTOR_HEALTH,

	POWER_SUPPLY_PROP_SET_SHIP_MODE,

	POWER_SUPPLY_PROP_PARALLEL_BATFET_MODE,

};



static int smb138x_parallel_get_prop(struct power_supply *psy,
@@ -738,6 +744,9 @@ static int smb138x_parallel_get_prop(struct power_supply *psy, 
		/* Not in ship mode as long as device is active */

		val->intval = 0;

		break;

	case POWER_SUPPLY_PROP_PARALLEL_BATFET_MODE:

		val->intval = chip->dt.pl_batfet_mode;

		break;

	default:

		pr_err("parallel power supply get prop %d not supported\n",

			prop);