summaryrefslogtreecommitdiffstats
path: root/Documentation/hwmon
diff options
context:
space:
mode:
authorVadim Pasternak <vadimp@mellanox.com>2020-01-13 15:08:41 +0000
committerGuenter Roeck <linux@roeck-us.net>2020-01-23 13:15:11 -0800
commit971dfd8cdcd60fcf78566e3d1e20d865fc4073b5 (patch)
treebbf241ffdf4273a27624b5011bac1d6054ec0605 /Documentation/hwmon
parentaaafb7c8eb1c53d50ac1857f3b997baeac383378 (diff)
downloadlinux-971dfd8cdcd60fcf78566e3d1e20d865fc4073b5.tar.bz2
docs: hwmon: Include 'xdpe12284.rst' into docs
Add documentation for 'xdpe122' devices. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Link: https://lore.kernel.org/r/20200113150841.17670-7-vadimp@mellanox.com [groeck: Added to index.rst] 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/xdpe12284.rst101
2 files changed, 102 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 682ef4dda89c..1bb4ce669131 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -180,6 +180,7 @@ Hardware Monitoring Kernel Drivers
wm831x
wm8350
xgene-hwmon
+ xdpe12284
zl6100
.. only:: subproject and html
diff --git a/Documentation/hwmon/xdpe12284.rst b/Documentation/hwmon/xdpe12284.rst
new file mode 100644
index 000000000000..6b7ae98cc536
--- /dev/null
+++ b/Documentation/hwmon/xdpe12284.rst
@@ -0,0 +1,101 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver xdpe122
+=====================
+
+Supported chips:
+
+ * Infineon XDPE12254
+
+ Prefix: 'xdpe12254'
+
+ * Infineon XDPE12284
+
+ Prefix: 'xdpe12284'
+
+Authors:
+
+ Vadim Pasternak <vadimp@mellanox.com>
+
+Description
+-----------
+
+This driver implements support for Infineon Multi-phase XDPE122 family
+dual loop voltage regulators.
+The family includes XDPE12284 and XDPE12254 devices.
+The devices from this family complaint with:
+- Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC
+ converter specification.
+- Intel SVID rev 1.9. protocol.
+- PMBus rev 1.3 interface.
+
+Devices support linear format for reading input voltage, input and output current,
+input and output power and temperature.
+Device supports VID format for reading output voltage. The below modes are
+supported:
+- VR12.0 mode, 5-mV DAC - 0x01.
+- VR12.5 mode, 10-mV DAC - 0x02.
+- IMVP9 mode, 5-mV DAC - 0x03.
+- AMD mode 6.25mV - 0x10.
+
+Devices support two pages for telemetry.
+
+The driver provides for current: input, maximum and critical thresholds
+and maximum and critical alarms. Critical thresholds and critical alarm are
+supported only for current output.
+The driver exports the following attributes for via the sysfs files, where
+indexes 1, 2 are for "iin" and 3, 4 for "iout":
+
+**curr[3-4]_crit**
+
+**curr[3-4]_crit_alarm**
+
+**curr[1-4]_input**
+
+**curr[1-4]_label**
+
+**curr[1-4]_max**
+
+**curr[1-4]_max_alarm**
+
+The driver provides for voltage: input, critical and low critical thresholds
+and critical and low critical alarms.
+The driver exports the following attributes for via the sysfs files, where
+indexes 1, 2 are for "vin" and 3, 4 for "vout":
+
+**in[1-4]_crit**
+
+**in[1-4_crit_alarm**
+
+**in[1-4]_input**
+
+**in[1-4_label**
+
+**in[1-4]_lcrit**
+
+**in[1-41_lcrit_alarm**
+
+The driver provides for power: input and alarms. Power alarm is supported only
+for power input.
+The driver exports the following attributes for via the sysfs files, where
+indexes 1, 2 are for "pin" and 3, 4 for "pout":
+
+**power[1-2]_alarm**
+
+**power[1-4]_input**
+
+**power[1-4]_label**
+
+The driver provides for temperature: input, maximum and critical thresholds
+and maximum and critical alarms.
+The driver exports the following attributes for via the sysfs files:
+
+**temp[1-2]_crit**
+
+**temp[1-2]_crit_alarm**
+
+**temp[1-2]_input**
+
+**temp[1-2]_max**
+
+**temp[1-2]_max_alarm**