From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liam Breck Subject: [PATCH v13 04/11] power: supply: core: Add power_supply_prop_precharge Date: Wed, 3 May 2017 23:18:04 -0700 Message-ID: <20170504061811.18107-5-liam@networkimprov.net> References: <20170504061811.18107-1-liam@networkimprov.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: Received: from mail-pf0-f196.google.com ([209.85.192.196]:34292 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752110AbdEDGTL (ORCPT ); Thu, 4 May 2017 02:19:11 -0400 Received: by mail-pf0-f196.google.com with SMTP id d1so801388pfe.1 for ; Wed, 03 May 2017 23:19:11 -0700 (PDT) In-Reply-To: <20170504061811.18107-1-liam@networkimprov.net> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Sebastian Reichel , "Andrew F. Davis" , linux-pm@vger.kernel.org Cc: Liam Breck From: Liam Breck Battery chargers use POWER_SUPPLY_PROP_PRECHARGE_CURRENT Clarify related item POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT Signed-off-by: Liam Breck --- Documentation/power/power_supply_class.txt | 19 ++++++++++++------- drivers/power/supply/power_supply_sysfs.c | 1 + include/linux/power_supply.h | 3 +++ 3 files changed, 16 insertions(+), 7 deletions(-) diff --git a/Documentation/power/power_supply_class.txt b/Documentation/power/power_supply_class.txt index 01f0075..300d378 100644 --- a/Documentation/power/power_supply_class.txt +++ b/Documentation/power/power_supply_class.txt @@ -115,28 +115,33 @@ of charge when battery became full/empty". It also could mean "value of charge when battery considered full/empty at given conditions (temperature, age)". I.e. these attributes represents real thresholds, not design values. +ENERGY_FULL, ENERGY_EMPTY - same as above but for energy. + CHARGE_COUNTER - the current charge counter (in µAh). This could easily be negative; there is no empty or full value. It is only useful for relative, time-based measurements. +PRECHARGE_CURRENT - the maximum charge current during precharge phase +of charge cycle (typically 20% of battery capacity). +CHARGE_TERM_CURRENT - Charge termination current. The charge cycle +terminates when battery voltage is above recharge threshold, and charge +current is below this setting (typically 10% of battery capacity). + CONSTANT_CHARGE_CURRENT - constant charge current programmed by charger. CONSTANT_CHARGE_CURRENT_MAX - maximum charge current supported by the power supply object. -INPUT_CURRENT_LIMIT - input current limit programmed by charger. Indicates -the current drawn from a charging source. -CHARGE_TERM_CURRENT - Charge termination current used to detect the end of charge -condition. - -CALIBRATE - battery or coulomb counter calibration status CONSTANT_CHARGE_VOLTAGE - constant charge voltage programmed by charger. CONSTANT_CHARGE_VOLTAGE_MAX - maximum charge voltage supported by the power supply object. +INPUT_CURRENT_LIMIT - input current limit programmed by charger. Indicates +the current drawn from a charging source. + CHARGE_CONTROL_LIMIT - current charge control limit setting CHARGE_CONTROL_LIMIT_MAX - maximum charge control limit setting -ENERGY_FULL, ENERGY_EMPTY - same as above but for energy. +CALIBRATE - battery or coulomb counter calibration status CAPACITY - capacity in percents. CAPACITY_ALERT_MIN - minimum capacity alert value in percents. diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c index bcde8d1..937b03c 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -196,6 +196,7 @@ static struct device_attribute power_supply_attrs[] = { POWER_SUPPLY_ATTR(time_to_full_avg), POWER_SUPPLY_ATTR(type), POWER_SUPPLY_ATTR(scope), + POWER_SUPPLY_ATTR(precharge_current), POWER_SUPPLY_ATTR(charge_term_current), POWER_SUPPLY_ATTR(calibrate), /* Properties of type `const char *' */ diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 67f363b..1a83f47 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -146,6 +146,7 @@ enum power_supply_property { POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */ POWER_SUPPLY_PROP_SCOPE, + POWER_SUPPLY_PROP_PRECHARGE_CURRENT, POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, POWER_SUPPLY_PROP_CALIBRATE, /* Properties of type `const char *' */ @@ -379,6 +380,8 @@ static inline bool power_supply_is_amp_property(enum power_supply_property psp) case POWER_SUPPLY_PROP_CHARGE_NOW: case POWER_SUPPLY_PROP_CHARGE_AVG: case POWER_SUPPLY_PROP_CHARGE_COUNTER: + case POWER_SUPPLY_PROP_PRECHARGE_CURRENT: + case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT: case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: case POWER_SUPPLY_PROP_CURRENT_MAX: -- 2.9.3