[PATCH v2 3/5] power: supply: core: add wireless signal strength property
DORMANTno replies
From: Qiwu Huang <hidden>
Date: 2020-07-13 04:06:02
Also in:
lkml
Subsystem:
power supply class/subsystem and drivers, the rest · Maintainers:
Sebastian Reichel, Linus Torvalds
From: Qiwu Huang <redacted> reports wireless signal strength. The value show degree of coupling between tx and rx. Signed-off-by: Qiwu Huang <redacted> --- Documentation/ABI/testing/sysfs-class-power | 11 +++++++++++ drivers/power/supply/power_supply_sysfs.c | 1 + include/linux/power_supply.h | 1 + 3 files changed, 13 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index cd07d3f4e8b1..f10780be2732 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power@@ -729,3 +729,14 @@ Description: Access: Read-Only Valid values: Reported as integer + +What: /sys/class/power_supply/<supply_name>/signal_strength +Date: Jul 2020 +Contact: Fei Jiang <jiangfei1@xiaomi.com> +Description: + Reports wireless signal strength.The value show degree of coupling. + Unit is KHZ,the "value" means the working frequency of receiver + chip of wireless charging. + + Access: Read-Only + Valid values: Reported as integer
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index f2458e21d02b..e420a453095e 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c@@ -208,6 +208,7 @@ static struct power_supply_attr power_supply_attrs[] = { POWER_SUPPLY_ATTR(SERIAL_NUMBER), POWER_SUPPLY_ATTR(QUICK_CHARGE_TYPE), POWER_SUPPLY_ATTR(TX_ADAPTER), + POWER_SUPPLY_ATTR(SIGNAL_STRENGTH), }; static struct attribute *
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 2de9a4c93723..397fb8e96b03 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h@@ -169,6 +169,7 @@ enum power_supply_property { POWER_SUPPLY_PROP_SERIAL_NUMBER, POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE, POWER_SUPPLY_PROP_TX_ADAPTER, + POWER_SUPPLY_PROP_SIGNAL_STRENGTH, }; enum power_supply_type {
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2.27.0