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authorRobert Marko <robert.marko@sartura.hr>2021-01-21 14:44:33 +0100
committerGuenter Roeck <linux@roeck-us.net>2021-02-12 07:02:55 -0800
commitfff7b8ab225547828db9c57cdf05a03d5b4a7153 (patch)
tree0e6c3a443963717734340a4099d591a0d66a5a3b /Documentation/hwmon
parentf02e897bf37d7db57d337094a7c0a9d8f2f5d4fb (diff)
downloadlinux-fff7b8ab225547828db9c57cdf05a03d5b4a7153.tar.bz2
hwmon: add Texas Instruments TPS23861 driver
Add basic monitoring support as well as port on/off control for Texas Instruments TPS23861 PoE PSE IC. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Cc: Luka Perkov <luka.perkov@sartura.hr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210121134434.2782405-2-robert.marko@sartura.hr Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/index.rst1
-rw-r--r--Documentation/hwmon/tps23861.rst41
2 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 3589151bcefb..8d5a2df1ecb6 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -177,6 +177,7 @@ Hardware Monitoring Kernel Drivers
tmp401
tmp421
tmp513
+ tps23861
tps40422
tps53679
twl4030-madc-hwmon
diff --git a/Documentation/hwmon/tps23861.rst b/Documentation/hwmon/tps23861.rst
new file mode 100644
index 000000000000..46d121ff3f31
--- /dev/null
+++ b/Documentation/hwmon/tps23861.rst
@@ -0,0 +1,41 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+Kernel driver tps23861
+======================
+
+Supported chips:
+ * Texas Instruments TPS23861
+
+ Prefix: 'tps23861'
+
+ Datasheet: https://www.ti.com/lit/gpn/tps23861
+
+Author: Robert Marko <robert.marko@sartura.hr>
+
+Description
+-----------
+
+This driver supports hardware monitoring for Texas Instruments TPS23861 PoE PSE.
+
+TPS23861 is a quad port IEEE802.3at PSE controller with optional I2C control
+and monitoring capabilities.
+
+TPS23861 offers three modes of operation: Auto, Semi-Auto and Manual.
+
+This driver only supports the Auto mode of operation providing monitoring
+as well as enabling/disabling the four ports.
+
+Sysfs entries
+-------------
+
+======================= =====================================================================
+in[0-3]_input Voltage on ports [1-4]
+in[0-3]_label "Port[1-4]"
+in4_input IC input voltage
+in4_label "Input"
+temp1_input IC die temperature
+temp1_label "Die"
+curr[1-4]_input Current on ports [1-4]
+in[1-4]_label "Port[1-4]"
+in[0-3]_enable Enable/disable ports [1-4]
+======================= =====================================================================