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X-Powers AC100 Codec/RTC IC Device Tree bindings
AC100 is a audio codec and RTC subsystem combo IC. The 2 parts are
separated, including power supplies and interrupt lines, but share
a common register address space and host interface.
Required properties:
- compatible: "x-powers,ac100"
- reg: The I2C slave address or RSB hardware address for the chip
- sub-nodes:
- codec
- compatible: "x-powers,ac100-codec"
- interrupts: SoC NMI / GPIO interrupt connected to the
IRQ_AUDIO pin
- #clock-cells: Shall be 0
- clock-output-names: "4M_adda"
- see clock/clock-bindings.txt for common clock bindings
- rtc
- compatible: "x-powers,ac100-rtc"
- clocks: A phandle to the codec's "4M_adda" clock
- #clock-cells: Shall be 1
- clock-output-names: "cko1_rtc", "cko2_rtc", "cko3_rtc"
- see clock/clock-bindings.txt for common clock bindings
Example:
ac100: codec@e89 {
compatible = "x-powers,ac100";
reg = <0xe89>;
ac100_codec: codec {
compatible = "x-powers,ac100-codec";
interrupt-parent = <&r_pio>;
interrupts = <0 9 IRQ_TYPE_LEVEL_LOW>; /* PL9 */
#clock-cells = <0>;
clock-output-names = "4M_adda";
};
ac100_rtc: rtc {
compatible = "x-powers,ac100-rtc";
interrupt-parent = <&nmi_intc>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
clocks = <&ac100_codec>;
#clock-cells = <1>;
clock-output-names = "cko1_rtc", "cko2_rtc", "cko3_rtc";
};
};
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