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author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-06-21 13:44:30 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-06-22 08:16:13 +0200 |
commit | e4067b75fb6ca83a58b2c342a0b3ee12e1223c4e (patch) | |
tree | be013bf46292f4696ac776bc91c1cf35b7adab24 /dts/Bindings/iio/afe/current-sense-amplifier.txt | |
parent | fe040e0977fab29216f5039e8f9b04e6dbec859a (diff) | |
download | barebox-e4067b75fb6ca83a58b2c342a0b3ee12e1223c4e.tar.gz barebox-e4067b75fb6ca83a58b2c342a0b3ee12e1223c4e.tar.xz |
dts: update to v4.18-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/iio/afe/current-sense-amplifier.txt')
-rw-r--r-- | dts/Bindings/iio/afe/current-sense-amplifier.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/dts/Bindings/iio/afe/current-sense-amplifier.txt b/dts/Bindings/iio/afe/current-sense-amplifier.txt new file mode 100644 index 0000000000..821b61b8c5 --- /dev/null +++ b/dts/Bindings/iio/afe/current-sense-amplifier.txt @@ -0,0 +1,26 @@ +Current Sense Amplifier +======================= + +When an io-channel measures the output voltage from a current sense +amplifier, the interesting measurement is almost always the current +through the sense resistor, not the voltage output. This binding +describes such a current sense circuit. + +Required properties: +- compatible : "current-sense-amplifier" +- io-channels : Channel node of a voltage io-channel. +- sense-resistor-micro-ohms : The sense resistance in microohms. + +Optional properties: +- sense-gain-mult: Amplifier gain multiplier. The default is <1>. +- sense-gain-div: Amplifier gain divider. The default is <1>. + +Example: + +sysi { + compatible = "current-sense-amplifier"; + io-channels = <&tiadc 0>; + + sense-resistor-micro-ohms = <20000>; + sense-gain-mul = <50>; +}; |