diff options
| author | Ricardo Rivera-Matos <rriveram@opensource.cirrus.com> | 2022-02-14 18:07:56 -0600 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2022-02-24 12:09:20 +0100 |
| commit | 05f2281b4192320a20d746df6146b3dd82f96e39 (patch) | |
| tree | 506224c4413b0f39dd153b1ff39b176e733040eb | |
| parent | e5372503d82b780ebc3fea3b893f04ca6f52fe42 (diff) | |
| download | linux-05f2281b4192320a20d746df6146b3dd82f96e39.tar.bz2 | |
power: supply: Introduces bypass charging property
Adds a POWER_SUPPLY_CHARGE_TYPE_BYPASS option to the POWER_SUPPLY_PROP_CHARGE_TYPE
property to facilitate bypass charging operation.
In bypass charging operation, the charger bypasses the charging path around the
integrated converter allowing for a "smart" wall adaptor to perform the power
conversion externally.
This operational mode is critical for the USB PPS standard of power adaptors and is
becoming a common feature in modern charging ICs such as:
- BQ25980
- BQ25975
- BQ25960
- LN8000
- LN8410
Signed-off-by: Ricardo Rivera-Matos <rriveram@opensource.cirrus.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-power | 7 | ||||
| -rw-r--r-- | drivers/power/supply/power_supply_sysfs.c | 1 | ||||
| -rw-r--r-- | include/linux/power_supply.h | 1 |
3 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index fde21d900420..738dcb0cf180 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -380,13 +380,16 @@ Description: algorithm to adjust the charge rate dynamically, without any user configuration required. "Custom" means that the charger uses the charge_control_* properties as configuration for some - different algorithm. + different algorithm. "Bypass" means the charger bypasses the + charging path around the integrated converter allowing for a + "smart" wall adaptor to perform the power conversion + externally. Access: Read, Write Valid values: "Unknown", "N/A", "Trickle", "Fast", "Standard", - "Adaptive", "Custom" + "Adaptive", "Custom", "Bypass" What: /sys/class/power_supply/<supply_name>/charge_term_current Date: July 2014 diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c index c0dfcfa33206..4239591e1522 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -89,6 +89,7 @@ static const char * const POWER_SUPPLY_CHARGE_TYPE_TEXT[] = { [POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE] = "Adaptive", [POWER_SUPPLY_CHARGE_TYPE_CUSTOM] = "Custom", [POWER_SUPPLY_CHARGE_TYPE_LONGLIFE] = "Long Life", + [POWER_SUPPLY_CHARGE_TYPE_BYPASS] = "Bypass", }; static const char * const POWER_SUPPLY_HEALTH_TEXT[] = { diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 006111917d1a..c135196aa9d1 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -49,6 +49,7 @@ enum { 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 */ + POWER_SUPPLY_CHARGE_TYPE_BYPASS, /* bypassing the charger */ }; enum { |