diff options
Diffstat (limited to 'dts/Bindings/iio/adc')
| -rw-r--r-- | dts/Bindings/iio/adc/berlin2_adc.txt | 19 | ||||
| -rw-r--r-- | dts/Bindings/iio/adc/ti-adc128s052.txt | 4 | ||||
| -rw-r--r-- | dts/Bindings/iio/adc/vf610-adc.txt | 9 |
3 files changed, 30 insertions, 2 deletions
diff --git a/dts/Bindings/iio/adc/berlin2_adc.txt b/dts/Bindings/iio/adc/berlin2_adc.txt new file mode 100644 index 0000000000..908334c6b0 --- /dev/null +++ b/dts/Bindings/iio/adc/berlin2_adc.txt @@ -0,0 +1,19 @@ +* Berlin Analog to Digital Converter (ADC) + +The Berlin ADC has 8 channels, with one connected to a temperature sensor. +It is part of the system controller register set. The ADC node should be a +sub-node of the system controller node. + +Required properties: +- compatible: must be "marvell,berlin2-adc" +- interrupts: the interrupts for the ADC and the temperature sensor +- interrupt-names: should be "adc" and "tsen" + +Example: + +adc: adc { + compatible = "marvell,berlin2-adc"; + interrupt-parent = <&sic>; + interrupts = <12>, <14>; + interrupt-names = "adc", "tsen"; +}; diff --git a/dts/Bindings/iio/adc/ti-adc128s052.txt b/dts/Bindings/iio/adc/ti-adc128s052.txt index 42ca7deec9..15ca6b4795 100644 --- a/dts/Bindings/iio/adc/ti-adc128s052.txt +++ b/dts/Bindings/iio/adc/ti-adc128s052.txt @@ -1,7 +1,7 @@ -* Texas Instruments' ADC128S052 ADC chip +* Texas Instruments' ADC128S052 and ADC122S021 ADC chip Required properties: - - compatible: Should be "ti,adc128s052" + - compatible: Should be "ti,adc128s052" or "ti,adc122s021" - reg: spi chip select number for the device - vref-supply: The regulator supply for ADC reference voltage diff --git a/dts/Bindings/iio/adc/vf610-adc.txt b/dts/Bindings/iio/adc/vf610-adc.txt index 1a4a43d5c9..3eb40e20c1 100644 --- a/dts/Bindings/iio/adc/vf610-adc.txt +++ b/dts/Bindings/iio/adc/vf610-adc.txt @@ -11,6 +11,13 @@ Required properties: - clock-names: Must contain "adc", matching entry in the clocks property. - vref-supply: The regulator supply ADC reference voltage. +Recommended properties: +- fsl,adck-max-frequency: Maximum frequencies according to datasheets operating + requirements. Three values are required, depending on conversion mode: + - Frequency in normal mode (ADLPC=0, ADHSC=0) + - Frequency in high-speed mode (ADLPC=0, ADHSC=1) + - Frequency in low-power mode (ADLPC=1, ADHSC=0) + Example: adc0: adc@4003b000 { compatible = "fsl,vf610-adc"; @@ -18,5 +25,7 @@ adc0: adc@4003b000 { interrupts = <0 53 0x04>; clocks = <&clks VF610_CLK_ADC0>; clock-names = "adc"; + fsl,adck-max-frequency = <30000000>, <40000000>, + <20000000>; vref-supply = <®_vcc_3v3_mcu>; }; |