linux-kernel - [PATCH 4/5] power: supply: core: property to control reverse charge

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Date:   Fri, 10 Jul 2020 16:48:40 +0800
From:   Qiwu Huang <yanziily@...il.com>
To:     sre@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org, jiangfei1@...omi.com,
        Qiwu Huang <huangqiwu@...omi.com>
Subject: [PATCH 4/5] power: supply: core: property to control reverse charge

From: Qiwu Huang <huangqiwu@...omi.com>

Interface to control wireless reverse charge.
Supply reverse charge function when enabled.

Signed-off-by: Qiwu Huang <huangqiwu@...omi.com>
---
 Documentation/ABI/testing/sysfs-class-power | 13 ++++++++++++-
 drivers/power/supply/power_supply_sysfs.c   |  1 +
 include/linux/power_supply.h                |  1 +
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 1f42aa0c071e..1f489a250c19 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -737,4 +737,15 @@ Date:		Jul 2020
 Contact:	Fei Jiang <jiangfei1@...omi.com>
 Description:
 		Reports wireless signal strength.
-		The value show degree of coupling.
\ No newline at end of file
+		The value show degree of coupling.
+What:		/sys/class/power_supply/<supply_name>/reverse_chg_mode
+Date:		Jul 2020
+Contact:	Fei Jiang <jiangfei1@...omi.com>
+Description:
+		The property supply interface to control wireless
+		reverse charge mode.
+
+		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 42fbe1b68255..4be762abba89 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 397fb8e96b03..319bf6456867 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 {
-- 
2.26.0