Messages in this thread Patch in this message | | | From | Crag Wang <> | Subject | [PATCH 1/1] power_supply: wilco_ec: Add permanent long life charging mode | Date | Tue, 23 Jun 2020 16:20:16 +0800 |
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This is a long life mode for extended warranty battery, switching to a differnt mode selection is unavailable. The power charging rate is customized so that battery at work last longer.
Signed-off-by: Crag Wang <crag_wang@dell.com> --- Documentation/ABI/testing/sysfs-class-power-wilco | 3 +++ drivers/power/supply/power_supply_sysfs.c | 1 + drivers/power/supply/wilco-charger.c | 5 +++++ include/linux/power_supply.h | 1 + 4 files changed, 10 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-class-power-wilco b/Documentation/ABI/testing/sysfs-class-power-wilco index da1d6ffe5e3c..1c91b17b6fd4 100644 --- a/Documentation/ABI/testing/sysfs-class-power-wilco +++ b/Documentation/ABI/testing/sysfs-class-power-wilco @@ -14,6 +14,9 @@ Description: Charging begins when level drops below charge_control_start_threshold, and ceases when level is above charge_control_end_threshold. + Permanent Long Life: Last longer battery life, this mode + is programmed once in the factory. Switching to a + different mode is unavailable. What: /sys/class/power_supply/wilco-charger/charge_control_start_threshold Date: April 2019 diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c index bc79560229b5..af3884015ad8 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -87,6 +87,7 @@ static const char * const POWER_SUPPLY_CHARGE_TYPE_TEXT[] = { [POWER_SUPPLY_CHARGE_TYPE_STANDARD] = "Standard", [POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE] = "Adaptive", [POWER_SUPPLY_CHARGE_TYPE_CUSTOM] = "Custom", + [POWER_SUPPLY_CHARGE_TYPE_LONGLIFE] = "Permanent Long Life", }; static const char * const POWER_SUPPLY_HEALTH_TEXT[] = { diff --git a/drivers/power/supply/wilco-charger.c b/drivers/power/supply/wilco-charger.c index b3c6d7cdd731..713c3018652f 100644 --- a/drivers/power/supply/wilco-charger.c +++ b/drivers/power/supply/wilco-charger.c @@ -27,6 +27,7 @@ enum charge_mode { CHARGE_MODE_AC = 3, /* Mostly AC use, used for Trickle */ CHARGE_MODE_AUTO = 4, /* Used for Adaptive */ CHARGE_MODE_CUSTOM = 5, /* Used for Custom */ + CHARGE_MODE_LONGLIFE = 6, /* Used for Permanent Long Life */ }; #define CHARGE_LOWER_LIMIT_MIN 50 @@ -48,6 +49,8 @@ static int psp_val_to_charge_mode(int psp_val) return CHARGE_MODE_AUTO; case POWER_SUPPLY_CHARGE_TYPE_CUSTOM: return CHARGE_MODE_CUSTOM; + case POWER_SUPPLY_CHARGE_TYPE_LONGLIFE: + return CHARGE_MODE_LONGLIFE; default: return -EINVAL; } @@ -67,6 +70,8 @@ static int charge_mode_to_psp_val(enum charge_mode mode) return POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE; case CHARGE_MODE_CUSTOM: return POWER_SUPPLY_CHARGE_TYPE_CUSTOM; + case CHARGE_MODE_LONGLIFE: + return POWER_SUPPLY_CHARGE_TYPE_LONGLIFE; default: return -EINVAL; } diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index ac1345a48ad0..528a3eaa2320 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -48,6 +48,7 @@ enum { POWER_SUPPLY_CHARGE_TYPE_STANDARD, /* normal speed */ POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE, /* dynamically adjusted speed */ POWER_SUPPLY_CHARGE_TYPE_CUSTOM, /* use CHARGE_CONTROL_* props */ + POWER_SUPPLY_CHARGE_TYPE_LONGLIFE, /* slow speed, longer life */ }; enum { -- 2.20.1
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