From 5c090abf945bf5fd496c861f371410888be8f4de Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Tue, 16 Apr 2019 12:41:31 -0700 Subject: hwmon: (ina3221) Add averaging mode support The CONFIG register has a 3-bit averaging mode field for users to setup the number of samples that are collected and averaged together. This is very useful to filter noise from sensor data. This patch adds a 'samples' sysfs node using hwmon_chip_samples of hwmon core, and updates wait time calculation by taking this samples value into account. Signed-off-by: Nicolin Chen Signed-off-by: Guenter Roeck --- Documentation/hwmon/ina3221 | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/hwmon') diff --git a/Documentation/hwmon/ina3221 b/Documentation/hwmon/ina3221 index 4b82cbfb551c..ed3f22769d4b 100644 --- a/Documentation/hwmon/ina3221 +++ b/Documentation/hwmon/ina3221 @@ -35,3 +35,6 @@ curr[123]_max Warning alert current(mA) setting, activates the average is above this value. curr[123]_max_alarm Warning alert current limit exceeded in[456]_input Shunt voltage(uV) for channels 1, 2, and 3 respectively +samples Number of samples using in the averaging mode. + Supports the list of number of samples: + 1, 4, 16, 64, 128, 256, 512, 1024 -- cgit v1.2.3-55-g7522