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