linux-kernel - [PATCH v11 4/4] power: supply: core: property to control reverse charge

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Message-Id: <0d72b2e799ec764b851f3efecffbcc20f9b2c55c.1627992564.git.wangting11@xiaomi.com>
Date:   Wed,  4 Aug 2021 19:02:01 +0800
From:   Ting Wang <zxc52fgh@...il.com>
To:     sre@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org, wangting11 <wangting11@...omi.com>
Subject: [PATCH v11 4/4] power: supply: core: property to control reverse charge

From: wangting11 <wangting11@...omi.com>

Interface to control wireless reverse charge.

Signed-off-by: wangting11 <wangting11@...omi.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 4a6b4970cb7d..59518568d594 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -807,3 +807,17 @@ Description:
 
 		Access: Read-Only
 		Valid values: 0 - 100
+
+What:		/sys/class/power_supply/<supply_name>/reverse_chg_mode
+Date:		Jul 2020
+Contact:	Fei Jiang <jiangfei1@...omi.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 4de91dce2001..934563eed155 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -214,6 +214,7 @@ 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 0dfec19cb473..3fe3f9665389 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -174,6 +174,7 @@ 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 {
-- 
2.17.1