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From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org
Subject: [PATCH 11/14] power: supply: bq25890: show measured VBUS
Date: Thu, 02 Apr 2020 16:58:34 +0200	[thread overview]
Message-ID: <32ec8cef47cb49e02542916ae15972ba2e619e5a.1585838679.git.mirq-linux@rere.qmqm.pl> (raw)
In-Reply-To: <cover.1585838678.git.mirq-linux@rere.qmqm.pl>

Export VBUS measurement via INPUT_VOLTAGE_NOW property.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/power/supply/bq25890_charger.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c
index 250468f3ff18..d23274d13263 100644
--- a/drivers/power/supply/bq25890_charger.c
+++ b/drivers/power/supply/bq25890_charger.c
@@ -506,6 +506,24 @@ static int bq25890_power_supply_get_property(struct power_supply *psy,
 		val->intval = bq25890_find_val(ret, TBL_IILIM);
 		break;
 
+	case POWER_SUPPLY_PROP_INPUT_VOLTAGE_NOW:
+		ret = bq25890_field_read(bq, F_VBUS_GD); /* is VBUS connected? */
+		if (ret < 0)
+			return ret;
+
+		if (!ret) {
+			val->intval = 0;
+			break;
+		}
+
+		ret = bq25890_field_read(bq, F_VBUSV); /* read measured value */
+		if (ret < 0)
+			return ret;
+
+		/* converted_val = 2.6V + ADC_val * 100mV */
+		val->intval = 2600000 + ret * 100000;
+		break;
+
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 		ret = bq25890_field_read(bq, F_SYSV); /* read measured value */
 		if (ret < 0)
@@ -705,6 +723,7 @@ static const enum power_supply_property bq25890_power_supply_props[] = {
 	POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
 	POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
 	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
+	POWER_SUPPLY_PROP_INPUT_VOLTAGE_NOW,
 	POWER_SUPPLY_PROP_VOLTAGE_NOW,
 	POWER_SUPPLY_PROP_CURRENT_NOW,
 };
-- 
2.20.1


  parent reply	other threads:[~2020-04-02 14:58 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-02 14:58 [PATCH 00/14] power: supply: bq25890: fix and extend Michał Mirosław
2020-04-02 14:58 ` [PATCH 02/14] power: supply: bq25890: simplify chip name property getter Michał Mirosław
2020-04-02 14:58 ` [PATCH 01/14] power: supply: bq25890: remove redundant I2C bus check Michał Mirosław
2020-04-02 14:58 ` [PATCH 03/14] power: supply: bq25890: make property table const Michał Mirosław
2020-04-03 19:52   ` kbuild test robot
2020-04-04  3:41   ` kbuild test robot
2020-04-02 14:58 ` [PATCH 04/14] power: supply: bq25890: protect view of the chip's state Michał Mirosław
2020-04-02 14:58 ` [PATCH 05/14] power: supply: bq25890: fix ADC mode configuration Michał Mirosław
2020-04-03 20:29   ` kbuild test robot
2020-04-03 22:14   ` kbuild test robot
2020-04-04  5:14   ` kbuild test robot
2020-04-02 14:58 ` [PATCH 06/14] power: supply: bq25890: update state on property read Michał Mirosław
2020-04-02 14:58 ` [PATCH 07/14] power: supply: bq25890: implement CHARGE_TYPE property Michał Mirosław
2020-04-02 14:58 ` [PATCH 09/14] power: supply: bq25890: implement INPUT_CURRENT_LIMIT property Michał Mirosław
2020-04-02 14:58 ` [PATCH 08/14] power: supply: bq25890: implement PRECHARGE_CURRENT property Michał Mirosław
2020-04-02 14:58 ` Michał Mirosław [this message]
2020-04-03 21:06   ` [PATCH 11/14] power: supply: bq25890: show measured VBUS kbuild test robot
2020-04-03 23:04   ` kbuild test robot
2020-04-02 14:58 ` [PATCH 10/14] power: supply: bq25890: use proper CURRENT_NOW property for I_BAT Michał Mirosław
2020-04-02 14:58 ` [PATCH 12/14] power: supply: bq25890: show VSYS as output voltage Michał Mirosław
2020-04-03 21:41   ` kbuild test robot
2020-04-02 14:58 ` [PATCH 13/14] power: supply: bq25890: show VBAT as VOLTAGE_NOW Michał Mirosław
2020-04-02 14:58 ` [PATCH 14/14] power: supply: bq25890: support IBAT compensation Michał Mirosław

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