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 10/19] power: supply: sbs-battery: Improve POWER_SUPPLY_PROP_TECHNOLOGY support
Date: Wed, 13 May 2020 20:56:06 +0200 [thread overview]
Message-ID: <20200513185615.508236-11-sebastian.reichel@collabora.com> (raw)
In-Reply-To: <20200513185615.508236-1-sebastian.reichel@collabora.com>
This reads the battery chemistry from the battery chip instead
of incorrectly hardcoding the type to be Li-Ion.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
drivers/power/supply/sbs-battery.c | 43 ++++++++++++++++++++++++++++--
1 file changed, 41 insertions(+), 2 deletions(-)
diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c
index 611a11385496..b697a42d9ccf 100644
--- a/drivers/power/supply/sbs-battery.c
+++ b/drivers/power/supply/sbs-battery.c
@@ -43,6 +43,7 @@ enum {
REG_DESIGN_CAPACITY_CHARGE,
REG_DESIGN_VOLTAGE_MIN,
REG_DESIGN_VOLTAGE_MAX,
+ REG_CHEMISTRY,
REG_MANUFACTURER,
REG_MODEL_NAME,
};
@@ -133,7 +134,9 @@ static const struct chip_data {
[REG_MANUFACTURER] =
SBS_DATA(POWER_SUPPLY_PROP_MANUFACTURER, 0x20, 0, 65535),
[REG_MODEL_NAME] =
- SBS_DATA(POWER_SUPPLY_PROP_MODEL_NAME, 0x21, 0, 65535)
+ SBS_DATA(POWER_SUPPLY_PROP_MODEL_NAME, 0x21, 0, 65535),
+ [REG_CHEMISTRY] =
+ SBS_DATA(POWER_SUPPLY_PROP_TECHNOLOGY, 0x22, 0, 65535)
};
static enum power_supply_property sbs_properties[] = {
@@ -185,6 +188,7 @@ struct sbs_info {
static char model_name[I2C_SMBUS_BLOCK_MAX + 1];
static char manufacturer[I2C_SMBUS_BLOCK_MAX + 1];
+static char chemistry[I2C_SMBUS_BLOCK_MAX + 1];
static bool force_load;
static int sbs_update_presence(struct sbs_info *chip, bool is_present)
@@ -636,6 +640,38 @@ static int sbs_get_property_index(struct i2c_client *client,
return -EINVAL;
}
+static int sbs_get_chemistry(struct i2c_client *client,
+ union power_supply_propval *val)
+{
+ enum power_supply_property psp = POWER_SUPPLY_PROP_TECHNOLOGY;
+ int ret;
+
+ ret = sbs_get_property_index(client, psp);
+ if (ret < 0)
+ return ret;
+
+ ret = sbs_get_battery_string_property(client, ret, psp,
+ chemistry);
+ if (ret < 0)
+ return ret;
+
+ if (!strncasecmp(chemistry, "LION", 4))
+ val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ else if (!strncasecmp(chemistry, "LiP", 3))
+ val->intval = POWER_SUPPLY_TECHNOLOGY_LIPO;
+ else if (!strncasecmp(chemistry, "NiCd", 4))
+ val->intval = POWER_SUPPLY_TECHNOLOGY_NiCd;
+ else if (!strncasecmp(chemistry, "NiMH", 4))
+ val->intval = POWER_SUPPLY_TECHNOLOGY_NiMH;
+ else
+ val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
+
+ if (val->intval == POWER_SUPPLY_TECHNOLOGY_UNKNOWN)
+ dev_warn(&client->dev, "Unknown chemistry: %s\n", chemistry);
+
+ return 0;
+}
+
static int sbs_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
@@ -673,7 +709,10 @@ static int sbs_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
- val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ ret = sbs_get_chemistry(client, val);
+ if (ret < 0)
+ break;
+
goto done; /* don't trigger power_supply_changed()! */
case POWER_SUPPLY_PROP_ENERGY_NOW:
--
2.26.2
next prev parent reply other threads:[~2020-05-13 18:56 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 ` Sebastian Reichel [this message]
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 ` [PATCHv1 12/19] power: supply: sbs-battery: add MANUFACTURE_DATE support Sebastian Reichel
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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