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| author | Laxman Dewangan <ldewangan@nvidia.com> | 2014-02-16 23:38:23 +0530 |
|---|---|---|
| committer | Laxman Dewangan <ldewangan@nvidia.com> | 2014-02-17 22:53:06 -0800 |
| commit | 4cbaa24305f7166dd024c3b791113346dfb3ebcd (patch) | |
| tree | 496c89ed966e3cd85fd6e4193f506d2fd2d31174 /Documentation/devicetree | |
| parent | a9593e3d7d790b5ae21066c7067976087e9fcaf1 (diff) | |
iio: meter: ina3221: add DT binding document for ina3221 driver
Add devicetree binding document and example for the iio/meter
based ina3221 driver.
Change-Id: I6af304e9139e5b3fed298018d458757605989481
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/368253
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/meter/ina3221.txt | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/meter/ina3221.txt b/Documentation/devicetree/bindings/iio/meter/ina3221.txt new file mode 100644 index 000000000000..9444b54dfb87 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/meter/ina3221.txt @@ -0,0 +1,55 @@ +DT binding document for INA3221 iio/meter driver. + +Required properties: +- compatible: Must be "ti,ina3221x". +- reg: I2C slave address of device. + +- ti,trigger-config: Trigger configuration for the device in trigger mode. +- ti,continuous-config: Device configuration in continuous mode. In this mode + device will keep scanning the inputs. +- address-cells: Number of address in child node. Must be 1. +- size-cells: Size of address cell. Must be 0. + +Optional sub-nodes: + Device has 3 input channels and channel specific information +is provided through the child node. Each channel will have different child +node. The channel number is identified by the reg properties on each of node. +Required subnode properties: +- reg: channel number. 0 for channel 0, 1 for channel 1 and 2 for channel 2. +- ti,rail-mae: Name of the channel in string. + +Optional subnode properties: +- ti,current-warning-limit-ma: Cureent warning limit for the given channel. +- ti,current-critical-limit-ma: Current critical limit for the given channel. +- ti,shunt-resistor-mohm: Shunt register in milli ohm. + +Example: + ina3221x@40 { + compatible = "ti,ina3221x"; + reg = <0x40>; + ti,trigger-config = <0x7003>; + ti,continuous-config = <0x7c07>; + #address-cells = <1>; + #size-cells = <0>; + + channel@0 { + reg = <0x0>; + ti,rail-name = "VDD_BAT"; + ti,current-warning-limit-ma = <8000>; + ti,current-critical-limit-ma = <9000>; + ti,shunt-resistor-mohm = <1>; + }; + + channel@1 { + reg = <0x1>; + ti,rail-name = "VDD_CPU"; + ti,shunt-resistor-mohm = <1>; + }; + + channel@2 { + reg = <0x2>; + ti,rail-name = "VDD_GPU"; + ti,shunt-resistor-mohm = <1>; + }; + }; + |