From b0bd407e94b036d597c6060d64c22094ff85b13c Mon Sep 17 00:00:00 2001 From: Alexandru Tachici Date: Thu, 3 Dec 2020 09:11:53 +0200 Subject: hwmon: (ltc2992) Add support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit LTC2992 is a rail-to-rail system monitor that measures current, voltage, and power of two supplies. Two ADCs simultaneously measure each supply’s current. A third ADC monitors the input voltages and four auxiliary external voltages. Signed-off-by: Alexandru Tachici Signed-off-by: Guenter Roeck --- Documentation/hwmon/index.rst | 1 + Documentation/hwmon/ltc2992.rst | 56 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 57 insertions(+) create mode 100644 Documentation/hwmon/ltc2992.rst (limited to 'Documentation/hwmon') diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index f1205c64423d..7e5104c8f477 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -101,6 +101,7 @@ Hardware Monitoring Kernel Drivers lm95234 lm95245 lochnagar + ltc2992 ltc2945 ltc2947 ltc2978 diff --git a/Documentation/hwmon/ltc2992.rst b/Documentation/hwmon/ltc2992.rst new file mode 100644 index 000000000000..46aa1aa84a1a --- /dev/null +++ b/Documentation/hwmon/ltc2992.rst @@ -0,0 +1,56 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver ltc2992 +===================== + +Supported chips: + * Linear Technology LTC2992 + Prefix: 'ltc2992' + Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2992.pdf + +Author: Alexandru Tachici + + +Description +----------- + +This driver supports hardware monitoring for Linear Technology LTC2992 power monitor. + +LTC2992 is a rail-to-rail system monitor that measures current, +voltage, and power of two supplies. + +Two ADCs simultaneously measure each supply’s current. A third ADC monitors +the input voltages and four auxiliary external voltages. + + +Sysfs entries +------------- + +The following attributes are supported. Limits are read-write, +all other attributes are read-only. + +in_reset_history Reset all highest/lowest values. + +inX_input Measured voltage. +inX_lowest Minimum measured voltage. +inX_highest Maximum measured voltage. +inX_min Minimum voltage allowed. +inX_max Maximum voltage allowed. +inX_min_alarm An undervoltage occurred. Cleared on read. +inX_max_alarm An overvoltage occurred. Cleared on read. + +currX_input Measured current. +currX_lowest Minimum measured current. +currX_highest Maximum measured current. +currX_min Minimum current allowed. +currX_max Maximum current allowed. +currX_min_alarm An undercurrent occurred. Cleared on read. +currX_max_alarm An overcurrent occurred. Cleared on read. + +powerX_input Measured power. +powerX_input_lowest Minimum measured voltage. +powerX_input_highest Maximum measured voltage. +powerX_min Minimum power. +powerX_max Maximum power. +powerX_min_alarm An underpower occurred. Cleared on read. +powerX_max_alarm An overpower occurred. Cleared on read. -- cgit v1.2.3