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