[PATCH v8 4/4] power: supply: core: property to control reverse charge

[Qiwu Huang]

From: Qiwu Huang <huangq...@xiaomi.com>

Interface to control wireless reverse charge.

Signed-off-by: Qiwu Huang <huangq...@xiaomi.com>
---
 Documentation/ABI/testing/sysfs-class-power | 14 ++++++++++++++
 drivers/power/supply/power_supply_sysfs.c   |  1 +
 include/linux/power_supply.h                |  1 +
 3 files changed, 16 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-class-power 
b/Documentation/ABI/testing/sysfs-class-power
index 4459b720feb2..8840fdf483a7 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -779,3 +779,17 @@ Description:
 
                Access: Read-Only
                Valid values: 0 - 100
+
+What:          /sys/class/power_supply/<supply_name>/reverse_chg_mode
+Date:          Jul 2020
+Contact:       Fei Jiang <jiangf...@xiaomi.com>
+Description:
+               Some devices support wireless reverse charge function which
+               charge other devices.The property provider interface to
+               enable/disable wireless reverse charge.If enabled, start TX
+               mode and detect RX. Disabled when timeout or manual setting.
+
+               Access: Read, Write
+               Valid values:
+               - 1: enabled
+               - 0: disabled
diff --git a/drivers/power/supply/power_supply_sysfs.c 
b/drivers/power/supply/power_supply_sysfs.c
index e420a453095e..81916b6b6ccf 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -209,6 +209,7 @@ static struct power_supply_attr power_supply_attrs[] = {
        POWER_SUPPLY_ATTR(QUICK_CHARGE_TYPE),
        POWER_SUPPLY_ATTR(TX_ADAPTER),
        POWER_SUPPLY_ATTR(SIGNAL_STRENGTH),
+       POWER_SUPPLY_ATTR(REVERSE_CHG_MODE),
 };
 
 static struct attribute *
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 747338118fa1..988d3f05ea1c 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -170,6 +170,7 @@ enum power_supply_property {
        POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE,
        POWER_SUPPLY_PROP_TX_ADAPTER,
        POWER_SUPPLY_PROP_SIGNAL_STRENGTH,
+       POWER_SUPPLY_PROP_REVERSE_CHG_MODE,
 };
 
 enum power_supply_type {
-- 
2.28.0