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From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Sebastian Reichel <sre@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J . Wysocki" <rafael@kernel.org>
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, kernel@collabora.com,
	Sebastian Reichel <sebastian.reichel@collabora.com>
Subject: [PATCHv1 12/19] power: supply: sbs-battery: add MANUFACTURE_DATE support
Date: Wed, 13 May 2020 20:56:08 +0200	[thread overview]
Message-ID: <20200513185615.508236-13-sebastian.reichel@collabora.com> (raw)
In-Reply-To: <20200513185615.508236-1-sebastian.reichel@collabora.com>

Expose the battery's manufacture date to userspace.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/power/supply/sbs-battery.c | 43 ++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c
index e6f61baa9bed..4fa553d61db2 100644
--- a/drivers/power/supply/sbs-battery.c
+++ b/drivers/power/supply/sbs-battery.c
@@ -58,6 +58,8 @@ enum {
 #define SBS_VERSION_1_1			2
 #define SBS_VERSION_1_1_WITH_PEC	3
 
+#define REG_ADDR_MANUFACTURE_DATE	0x1B
+
 /* Battery Mode defines */
 #define BATTERY_MODE_OFFSET		0x03
 #define BATTERY_MODE_CAPACITY_MASK	BIT(15)
@@ -171,6 +173,9 @@ static enum power_supply_property sbs_properties[] = {
 	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
 	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
 	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
+	POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
+	POWER_SUPPLY_PROP_MANUFACTURE_MONTH,
+	POWER_SUPPLY_PROP_MANUFACTURE_DAY,
 	/* Properties of type `const char *' */
 	POWER_SUPPLY_PROP_MANUFACTURER,
 	POWER_SUPPLY_PROP_MODEL_NAME
@@ -682,6 +687,38 @@ static int sbs_get_chemistry(struct i2c_client *client,
 	return 0;
 }
 
+static int sbs_get_battery_manufacture_date(struct i2c_client *client,
+	enum power_supply_property psp,
+	union power_supply_propval *val)
+{
+	int ret;
+	u16 day, month, year;
+
+	ret = sbs_read_word_data(client, REG_ADDR_MANUFACTURE_DATE);
+	if (ret < 0)
+		return ret;
+
+	day   = ret   & GENMASK(4,  0);
+	month = (ret  & GENMASK(8,  5)) >> 5;
+	year  = ((ret & GENMASK(15, 9)) >> 9) + 1980;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_MANUFACTURE_YEAR:
+		val->intval = year;
+		break;
+	case POWER_SUPPLY_PROP_MANUFACTURE_MONTH:
+		val->intval = month;
+		break;
+	case POWER_SUPPLY_PROP_MANUFACTURE_DAY:
+		val->intval = day;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int sbs_get_property(struct power_supply *psy,
 	enum power_supply_property psp,
 	union power_supply_propval *val)
@@ -790,6 +827,12 @@ static int sbs_get_property(struct power_supply *psy,
 		val->strval = manufacturer;
 		break;
 
+	case POWER_SUPPLY_PROP_MANUFACTURE_YEAR:
+	case POWER_SUPPLY_PROP_MANUFACTURE_MONTH:
+	case POWER_SUPPLY_PROP_MANUFACTURE_DAY:
+		ret = sbs_get_battery_manufacture_date(client, psp, val);
+		break;
+
 	default:
 		dev_err(&client->dev,
 			"%s: INVALID property\n", __func__);
-- 
2.26.2


  parent reply	other threads:[~2020-05-13 18:57 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-13 18:55 [PATCHv1 00/19] Improve SBS battery support Sebastian Reichel
2020-05-13 18:55 ` [PATCHv1 01/19] kobject: increase allowed number of uevent variables Sebastian Reichel
2020-05-14  6:11   ` Greg Kroah-Hartman
2020-05-15 14:45   ` Emil Velikov
2020-05-13 18:55 ` [PATCHv1 02/19] power: supply: core: add capacity error margin property Sebastian Reichel
2020-05-13 18:55 ` [PATCHv1 03/19] power: supply: core: add manufacture date properties Sebastian Reichel
2020-05-15 14:47   ` Emil Velikov
2020-05-15 15:14     ` Sebastian Reichel
2020-05-15 16:01       ` Emil Velikov
2020-05-13 18:56 ` [PATCHv1 04/19] power: supply: core: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 05/19] power: supply: sbs-battery: Add TI BQ20Z65 support Sebastian Reichel
2020-05-28  2:37   ` Rob Herring
2020-05-13 18:56 ` [PATCHv1 06/19] power: supply: sbs-battery: add POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN support Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 07/19] power: supply: sbs-battery: simplify read_read_string_data Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 08/19] power: supply: sbs-battery: add PEC support Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 09/19] power: supply: sbs-battery: add POWER_SUPPLY_PROP_CURRENT_AVG support Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 10/19] power: supply: sbs-battery: Improve POWER_SUPPLY_PROP_TECHNOLOGY support Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 11/19] power: supply: sbs-battery: add POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT/VOLTAGE_MAX support Sebastian Reichel
2020-05-13 18:56 ` Sebastian Reichel [this message]
2020-05-13 18:56 ` [PATCHv1 13/19] power: supply: sbs-battery: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED support Sebastian Reichel
2020-05-15 15:35   ` Emil Velikov
2020-05-13 18:56 ` [PATCHv1 14/19] power: supply: sbs-battery: fix idle battery status Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 15/19] power: supply: sbs-battery: add ability to disable charger broadcasts Sebastian Reichel
2020-05-15 14:57   ` Emil Velikov
2020-05-13 18:56 ` [PATCHv1 16/19] power: supply: sbs-battery: switch from of_property_* to device_property_* Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 17/19] power: supply: sbs-battery: switch to i2c's probe_new Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 18/19] power: supply: sbs-battery: constify power-supply property array Sebastian Reichel
2020-05-13 18:56 ` [PATCHv1 19/19] dt-bindings: power: sbs-battery: Convert to yaml Sebastian Reichel
2020-05-28  2:40   ` Rob Herring
2020-05-28 22:44 ` [PATCHv1 00/19] Improve SBS battery support Sebastian Reichel
2020-05-29 16:27 ` Pavel Machek
2020-06-01 21:57   ` Sebastian Reichel
     [not found] ` <CGME20200601104027eucas1p2b076ee860520d709e8178c41550653f7@eucas1p2.samsung.com>
2020-06-01 10:40   ` Marek Szyprowski
2020-06-01 17:05     ` Sebastian Reichel
2020-06-02  7:17       ` Marek Szyprowski
2020-06-02 18:01         ` Sebastian Reichel
2020-06-03 18:49           ` Marek Szyprowski

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