diff options
| author | Marek Belisko <marek@goldelico.com> | 2015-10-16 14:53:39 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-10-25 12:05:49 +0000 |
| commit | f0b1643581b376ebd97a0068cbc3d146d6abdff1 (patch) | |
| tree | e529892e1080cb63e152785cf65581ec616778d1 /Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt | |
| parent | e08e19c331fb249e6dc86365ee80d16045c4aeb1 (diff) | |
iio:adc:palmas: add DT support
Code was found at:
https://android.googlesource.com/kernel/tegra/+/a90856a6626d502d42c6e7abccbdf9d730b36270%5E%21/#F1
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Marek Belisko <marek@goldelico.com> [Fixed minor typos + add channels list to documentation]
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt b/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt new file mode 100644 index 000000000000..4bb9a86065d1 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt @@ -0,0 +1,48 @@ +* Palmas general purpose ADC IP block devicetree bindings + +Channels list: + 0 battery type + 1 battery temp NTC (optional current source) + 2 GP + 3 temp (with ext. diode, optional current source) + 4 GP + 5 GP + 6 VBAT_SENSE + 7 VCC_SENSE + 8 Backup Battery voltage + 9 external charger (VCHG) + 10 VBUS + 11 DC-DC current probe (how does this work?) + 12 internal die temp + 13 internal die temp + 14 USB ID pin voltage + 15 test network + +Required properties: +- compatible : Must be "ti,palmas-gpadc". +- #io-channel-cells: Should be set to <1>. + +Optional sub-nodes: +ti,channel0-current-microamp: Channel 0 current in uA. + Values are rounded to derive 0uA, 5uA, 15uA, 20uA. +ti,channel3-current-microamp: Channel 3 current in uA. + Values are rounded to derive 0uA, 10uA, 400uA, 800uA. +ti,enable-extended-delay: Enable extended delay. + +Example: + +pmic { + compatible = "ti,twl6035-pmic", "ti,palmas-pmic"; + ... + gpadc { + compatible = "ti,palmas-gpadc"; + interrupts = <18 0 + 16 0 + 17 0>; + #io-channel-cells = <1>; + ti,channel0-current-microamp = <5>; + ti,channel3-current-microamp = <10>; + }; + }; + ... +}; |