1 Freescale vf610 Analog to Digital Converter bindings
3 The devicetree bindings are for the new ADC driver written for
4 vf610/i.MX6slx and upward SoCs from Freescale.
7 - compatible: Should contain "fsl,vf610-adc"
8 - reg: Offset and length of the register set for the device
9 - interrupts: Should contain the interrupt for the device
10 - clocks: The clock is needed by the ADC controller, ADC clock source is ipg clock.
11 - clock-names: Must contain "adc", matching entry in the clocks property.
12 - vref-supply: The regulator supply ADC reference voltage.
14 Recommended properties:
15 - fsl,adck-max-frequency: Maximum frequencies according to datasheets operating
16 requirements. Three values are required, depending on conversion mode:
17 - Frequency in normal mode (ADLPC=0, ADHSC=0)
18 - Frequency in high-speed mode (ADLPC=0, ADHSC=1)
19 - Frequency in low-power mode (ADLPC=1, ADHSC=0)
20 - min-sample-time: Minimum sampling time in nanoseconds. This value has
21 to be chosen according to the conversion mode and the connected analog
22 source resistance (R_as) and capacitance (C_as). Refer the datasheet's
23 operating requirements. A safe default across a wide range of R_as and
24 C_as as well as conversion modes is 1000ns.
28 compatible = "fsl,vf610-adc";
29 reg = <0x4003b000 0x1000>;
30 interrupts = <0 53 0x04>;
31 clocks = <&clks VF610_CLK_ADC0>;
33 fsl,adck-max-frequency = <30000000>, <40000000>,
35 vref-supply = <®_vcc_3v3_mcu>;