xref: /freebsd/sys/contrib/device-tree/Bindings/iio/adc/sprd,sc27xx-adc.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotSpreadtrum SC27XX series PMICs ADC binding
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotRequired properties:
4*c66ec88fSEmmanuel Vadot- compatible: Should be one of the following.
5*c66ec88fSEmmanuel Vadot	"sprd,sc2720-adc"
6*c66ec88fSEmmanuel Vadot	"sprd,sc2721-adc"
7*c66ec88fSEmmanuel Vadot	"sprd,sc2723-adc"
8*c66ec88fSEmmanuel Vadot	"sprd,sc2730-adc"
9*c66ec88fSEmmanuel Vadot	"sprd,sc2731-adc"
10*c66ec88fSEmmanuel Vadot- reg: The address offset of ADC controller.
11*c66ec88fSEmmanuel Vadot- interrupt-parent: The interrupt controller.
12*c66ec88fSEmmanuel Vadot- interrupts: The interrupt number for the ADC device.
13*c66ec88fSEmmanuel Vadot- #io-channel-cells: Number of cells in an IIO specifier.
14*c66ec88fSEmmanuel Vadot- hwlocks: Reference to a phandle of a hwlock provider node.
15*c66ec88fSEmmanuel Vadot- nvmem-cells: A phandle to the calibration cells provided by eFuse device.
16*c66ec88fSEmmanuel Vadot- nvmem-cell-names: Should be "big_scale_calib", "small_scale_calib".
17*c66ec88fSEmmanuel Vadot
18*c66ec88fSEmmanuel VadotExample:
19*c66ec88fSEmmanuel Vadot
20*c66ec88fSEmmanuel Vadot	sc2731_pmic: pmic@0 {
21*c66ec88fSEmmanuel Vadot		compatible = "sprd,sc2731";
22*c66ec88fSEmmanuel Vadot		reg = <0>;
23*c66ec88fSEmmanuel Vadot		spi-max-frequency = <26000000>;
24*c66ec88fSEmmanuel Vadot		interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
25*c66ec88fSEmmanuel Vadot		interrupt-controller;
26*c66ec88fSEmmanuel Vadot		#interrupt-cells = <2>;
27*c66ec88fSEmmanuel Vadot		#address-cells = <1>;
28*c66ec88fSEmmanuel Vadot		#size-cells = <0>;
29*c66ec88fSEmmanuel Vadot
30*c66ec88fSEmmanuel Vadot		pmic_adc: adc@480 {
31*c66ec88fSEmmanuel Vadot			compatible = "sprd,sc2731-adc";
32*c66ec88fSEmmanuel Vadot			reg = <0x480>;
33*c66ec88fSEmmanuel Vadot			interrupt-parent = <&sc2731_pmic>;
34*c66ec88fSEmmanuel Vadot			interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
35*c66ec88fSEmmanuel Vadot			#io-channel-cells = <1>;
36*c66ec88fSEmmanuel Vadot			hwlocks = <&hwlock 4>;
37*c66ec88fSEmmanuel Vadot			nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
38*c66ec88fSEmmanuel Vadot			nvmem-cell-names = "big_scale_calib", "small_scale_calib";
39*c66ec88fSEmmanuel Vadot		};
40*c66ec88fSEmmanuel Vadot	};
41