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authorWenliang Yan <wenliang202407@163.com>2024-11-06 10:05:46 -0500
committerGuenter Roeck <linux@roeck-us.net>2024-11-10 14:48:07 -0800
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hwmon: (ina226) Add support for SY24655
SY24655: Support for current and voltage detection as well as power calculation. Signed-off-by: Wenliang Yan <wenliang202407@163.com> Message-ID: <20241106150547.2538-1-wenliang202407@163.com> [groeck: Changed order of compatible entries; dropped spurious extra return statement in is_visible(); fixed code problems] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon/ina2xx.rst')
-rw-r--r--Documentation/hwmon/ina2xx.rst27
1 files changed, 25 insertions, 2 deletions
diff --git a/Documentation/hwmon/ina2xx.rst b/Documentation/hwmon/ina2xx.rst
index 1ce161e6c0bf..a3860aae444c 100644
--- a/Documentation/hwmon/ina2xx.rst
+++ b/Documentation/hwmon/ina2xx.rst
@@ -63,6 +63,17 @@ Supported chips:
https://www.ti.com/
+ * Silergy SY24655
+
+ Prefix: 'sy24655'
+
+ Addresses: I2C 0x40 - 0x4f
+
+ Datasheet: Publicly available at the Silergy website
+
+ https://us1.silergy.com/
+
+
Author: Lothar Felten <lothar.felten@gmail.com>
Description
@@ -85,6 +96,11 @@ bus supply voltage.
INA260 is a high or low side current and power monitor with integrated shunt
resistor.
+The SY24655 is a high- and low-side current shunt and power monitor with an I2C
+interface. The SY24655 supports both shunt drop and supply voltage, with
+programmable calibration value and conversion times. The SY24655 can also
+calculate average power for use in energy conversion.
+
The shunt value in micro-ohms can be set via platform data or device tree at
compile-time or via the shunt_resistor attribute in sysfs at run-time. Please
refer to the Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings
@@ -108,8 +124,8 @@ power1_input Power(uW) measurement channel
shunt_resistor Shunt resistance(uOhm) channel (not for ina260)
======================= ===============================================
-Additional sysfs entries for ina226, ina230, ina231, and ina260
----------------------------------------------------------------
+Additional sysfs entries for ina226, ina230, ina231, ina260, and sy24655
+------------------------------------------------------------------------
======================= ====================================================
curr1_lcrit Critical low current
@@ -130,6 +146,13 @@ update_interval data conversion time; affects number of samples used
to average results for shunt and bus voltages.
======================= ====================================================
+Sysfs entries for sy24655 only
+------------------------------
+
+======================= ====================================================
+power1_average average power from last reading to the present.
+======================= ====================================================
+
.. note::
- Configure `shunt_resistor` before configure `power1_crit`, because power