[linux-block.git] / Documentation / devicetree / bindings / iio / adc / nuvoton,npcm-adc.txt

Nuvoton NPCM Analog to Digital Converter (ADC)

The NPCM ADC is a 10-bit converter for eight channel inputs.

Required properties:
- compatible: "nuvoton,npcm750-adc" for the NPCM7XX BMC.
- reg: specifies physical base address and size of the registers.
- interrupts: Contain the ADC interrupt with flags for falling edge.
- resets : phandle to the reset control for this device.

Optional properties:
- clocks: phandle of ADC reference clock, in case the clock is not
		  added the ADC will use the default ADC sample rate.
- vref-supply: The regulator supply ADC reference voltage, in case the
			   vref-supply is not added the ADC will use internal voltage
			   reference.

Example:

adc: adc@f000c000 {
	compatible = "nuvoton,npcm750-adc";
	reg = <0xf000c000 0x8>;
	interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
	clocks = <&clk NPCM7XX_CLK_ADC>;
	resets = <&rstc NPCM7XX_RESET_IPSRST1 NPCM7XX_RESET_ADC>;
};
Commit	Line	Data
1e1ab0b9 TM	1	Nuvoton NPCM Analog to Digital Converter (ADC)
	2
	3	The NPCM ADC is a 10-bit converter for eight channel inputs.
	4
	5	Required properties:
	6	- compatible: "nuvoton,npcm750-adc" for the NPCM7XX BMC.
	7	- reg: specifies physical base address and size of the registers.
	8	- interrupts: Contain the ADC interrupt with flags for falling edge.
816abe42	9	- resets : phandle to the reset control for this device.
1e1ab0b9 TM	10
	11	Optional properties:
	12	- clocks: phandle of ADC reference clock, in case the clock is not
	13	added the ADC will use the default ADC sample rate.
	14	- vref-supply: The regulator supply ADC reference voltage, in case the
	15	vref-supply is not added the ADC will use internal voltage
	16	reference.
	17
1e1ab0b9 TM	18	Example:
	19
	20	adc: adc@f000c000 {
	21	compatible = "nuvoton,npcm750-adc";
	22	reg = <0xf000c000 0x8>;
	23	interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
	24	clocks = <&clk NPCM7XX_CLK_ADC>;
816abe42	25	resets = <&rstc NPCM7XX_RESET_IPSRST1 NPCM7XX_RESET_ADC>;
1e1ab0b9	26	};