The patch adds the binding file for Freescale vf610 ADC driver. Signed-off-by: Fugang Duan <B38611@xxxxxxxxxxxxx> --- .../devicetree/bindings/iio/adc/vf610-adc.txt | 57 ++++++++++++++++++++ 1 files changed, 57 insertions(+), 0 deletions(-) diff --git a/Documentation/devicetree/bindings/iio/adc/vf610-adc.txt b/Documentation/devicetree/bindings/iio/adc/vf610-adc.txt new file mode 100644 index 0000000..4101516 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/vf610-adc.txt @@ -0,0 +1,57 @@ +Freescale vf610 Analog to Digital Converter bindings + +The devicetree bindings are for the new ADC driver written for +vf610/i.MX6slx and upward SoCs from Freescale. + +Required properties: +- compatible: Should be "fsl,vf610-adc" +- reg: Offset and length of the register set for the device +- interrupts: Should contain the interrupt for the device +- clocks: The clocks needed by the ADC controller +- clock-names: the name of the clocks + +Optional properties: +- fsl,adc-io-pinctl: Enable field for the I/O port control of MCU pins used as analog inputs. +- fsl,adc-vref: ADC refrence voltage value, unit is uV. +- fsl,adc-clk-div: Current clock divider value, such as 1,2,4,8,16 and so on. +- fsl,adc-res: ADC conversion mode selection, such as 8 for 8-bit, 10 for 10-bit, 12 for 12-bit mode. +- fsl,adc-sam-time: ADC sample time duration, number of ADC clocks, such as 2, 4, 6, 8, 12, 16, 20, 24 +- fsl,adc-aver-sam-sel: Determines how many ADC conversions will be averaged to create the ADC average result. + The Optional value is 4, 8, 16, 32. +- fsl,adc-hw-aver-en: Bool type to decide enable hardware average function. +- fsl,adc-low-power-mode: Bool type to decide enable ADC low power mode. +- fsl,adc-high-speed-conv: Bool type to decide enable ADC high speed mode. +- vref: The regulator to support ADC refrence voltage. + +Example: +adc0: adc@4003b000 { + compatible = "fsl,vf610-adc"; + reg = <0x4003b000 0x1000>; + interrupts = <0 53 0x04>; + clocks = <&clks VF610_CLK_ADC0>; + clock-names = "adc"; + status = "disabled"; +}; + +adc1: adc@400bb000 { + compatible = "fsl,vf610-adc"; + reg = <0x400bb000 0x1000>; + interrupts = <0 54 0x04>; + clocks = <&clks VF610_CLK_ADC1>; + clock-names = "adc"; + status = "disabled"; +}; + +&adc0 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_adc0_ad5>; + fsl,adc-io-pinctl = <0x20>; + fsl,adc-vref = <3300000>; + fsl,adc-clk-div = <2>; + fsl,adc-res = <12>; + fsl,adc-sam-time = <4>; + fsl,adc-aver-sam-sel = <4>; + fsl,adc-hw-aver-en; + fsl,adc-low-power-mode; + status = "okay"; +}; -- 1.7.2.rc3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html