From cd228e7b65d43c441964a17f02c92f33d2c4af7b Mon Sep 17 00:00:00 2001
From: Alex Vdovydchenko <xzeol@yahoo.com>
Date: Tue, 2 Jul 2024 14:52:51 +0300
Subject: hwmon: add MP5920 driver
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add support for MPS Hot-Swap controller mp5920. This driver exposes
telemetry and limit value readings and writings.

Signed-off-by: Alex Vdovydchenko <xzeol@yahoo.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240702115252.981416-3-xzeol@yahoo.com
[groeck: Use min_t() to limit length of displayed model string]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/hwmon/index.rst  |  1 +
 Documentation/hwmon/mp5920.rst | 91 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 Documentation/hwmon/mp5920.rst

(limited to 'Documentation/hwmon')

diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 3b43a33547ae..1241b7442233 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -169,6 +169,7 @@ Hardware Monitoring Kernel Drivers
    mp2975
    mp2993
    mp5023
+   mp5920
    mp5990
    mp9941
    mpq8785
diff --git a/Documentation/hwmon/mp5920.rst b/Documentation/hwmon/mp5920.rst
new file mode 100644
index 000000000000..98946e7cf54e
--- /dev/null
+++ b/Documentation/hwmon/mp5920.rst
@@ -0,0 +1,91 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver mp5920
+====================
+
+Supported chips:
+
+  * MPS MP5920
+
+    Prefix: 'mp5920'
+
+  * Datasheet
+
+    Publicly available at the MPS website : https://www.monolithicpower.com/en/mp5920.html
+
+Authors:
+
+	Tony Ao <tony_ao@wiwynn.com>
+	Alex Vdovydchenko <xzeol@yahoo.com>
+
+Description
+-----------
+
+This driver implements support for Monolithic Power Systems, Inc. (MPS)
+MP5920 Hot-Swap Controller.
+
+Device compliant with:
+
+- PMBus rev 1.3 interface.
+
+Device supports direct and linear format for reading input voltage,
+output voltage, output current, input power and temperature.
+
+The driver exports the following attributes via the 'sysfs' files
+for input voltage:
+
+**in1_input**
+
+**in1_label**
+
+**in1_rated_max**
+
+**in1_rated_min**
+
+**in1_crit**
+
+**in1_alarm**
+
+The driver provides the following attributes for output voltage:
+
+**in2_input**
+
+**in2_label**
+
+**in2_rated_max**
+
+**in2_rated_min**
+
+**in2_alarm**
+
+The driver provides the following attributes for output current:
+
+**curr1_input**
+
+**curr1_label**
+
+**curr1_crit**
+
+**curr1_alarm**
+
+**curr1_rated_max**
+
+The driver provides the following attributes for input power:
+
+**power1_input**
+
+**power1_label**
+
+**power1_max**
+
+**power1_rated_max**
+
+The driver provides the following attributes for temperature:
+
+**temp1_input**
+
+**temp1_max**
+
+**temp1_crit**
+
+**temp1_alarm**
-- 
cgit v1.2.3