hwmon: (ltc2978) device tree bindings documentation

Add device tree bindings documentation for ltc2978.

Signed-off-by: Alan Tull <atull@opensource.altera.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mark Brown <broonie@kernel.org>
[Guenter Roeck: Minor correction of 'compatible' example]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Alan Tull 2014-10-15 13:55:07 -05:00 committed by Guenter Roeck
parent 009d0431c3
commit 7e9d62d387
1 changed files with 39 additions and 0 deletions

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ltc2978
Required properties:
- compatible: should contain one of:
* "lltc,ltc2974"
* "lltc,ltc2977"
* "lltc,ltc2978"
* "lltc,ltc3880"
* "lltc,ltc3883"
* "lltc,ltm4676"
- reg: I2C slave address
Optional properties:
- regulators: A node that houses a sub-node for each regulator controlled by
the device. Each sub-node is identified using the node's name, with valid
values listed below. The content of each sub-node is defined by the
standard binding for regulators; see regulator.txt.
Valid names of regulators depend on number of supplies supported per device:
* ltc2974 : vout0 - vout3
* ltc2977 : vout0 - vout7
* ltc2978 : vout0 - vout7
* ltc3880 : vout0 - vout1
* ltc3883 : vout0
* ltm4676 : vout0 - vout1
Example:
ltc2978@5e {
compatible = "lltc,ltc2978";
reg = <0x5e>;
regulators {
vout0 {
regulator-name = "FPGA-2.5V";
};
vout2 {
regulator-name = "FPGA-1.5V";
};
};
};