The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/ac97-bus.txt

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    1 Generic AC97 Device Properties
    2 
    3 This documents describes the devicetree bindings for an ac97 controller child
    4 node describing ac97 codecs.
    5 
    6 Required properties:
    7 -compatible : Must be "ac97,vendor_id1,vendor_id2
    8               The ids shall be the 4 characters hexadecimal encoding, such as
    9               given by "%04x" formatting of printf
   10 -reg        : Must be the ac97 codec number, between 0 and 3
   11 
   12 Example:
   13 ac97: sound@40500000 {
   14         compatible = "marvell,pxa270-ac97";
   15         reg = < 0x40500000 0x1000 >;
   16         interrupts = <14>;
   17         reset-gpios = <&gpio 95 GPIO_ACTIVE_HIGH>;
   18         #sound-dai-cells = <1>;
   19         pinctrl-names = "default";
   20         pinctrl-0 = < &pinctrl_ac97_default >;
   21         clocks = <&clks CLK_AC97>, <&clks CLK_AC97CONF>;
   22         clock-names = "AC97CLK", "AC97CONFCLK";
   23 
   24         #address-cells = <1>;
   25         #size-cells = <0>;
   26         audio-codec@0 {
   27                 reg = <0>;
   28                 compatible = "ac97,574d,4c13";
   29                 clocks = <&fixed_wm9713_clock>;
   30                 clock-names = "ac97_clk";
   31         }
   32 };

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