xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/sound/soc-ac97link.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunAC97 link bindings
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunThese bindings can be included within any other device node.
4*4882a593Smuzhiyun
5*4882a593SmuzhiyunRequired properties:
6*4882a593Smuzhiyun - pinctrl-names: Has to contain following states to setup the correct
7*4882a593Smuzhiyun   pinmuxing for the used gpios:
8*4882a593Smuzhiyun	"ac97-running": AC97-link is active
9*4882a593Smuzhiyun	"ac97-reset": AC97-link reset state
10*4882a593Smuzhiyun	"ac97-warm-reset": AC97-link warm reset state
11*4882a593Smuzhiyun - ac97-gpios: List of gpio phandles with args in the order ac97-sync,
12*4882a593Smuzhiyun   ac97-sdata, ac97-reset
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunExample:
16*4882a593Smuzhiyun
17*4882a593Smuzhiyunssi {
18*4882a593Smuzhiyun	...
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun	pinctrl-names = "default", "ac97-running", "ac97-reset", "ac97-warm-reset";
21*4882a593Smuzhiyun	pinctrl-0 = <&ac97link_running>;
22*4882a593Smuzhiyun	pinctrl-1 = <&ac97link_running>;
23*4882a593Smuzhiyun	pinctrl-2 = <&ac97link_reset>;
24*4882a593Smuzhiyun	pinctrl-3 = <&ac97link_warm_reset>;
25*4882a593Smuzhiyun	ac97-gpios = <&gpio3 20 0 &gpio3 22 0 &gpio3 28 0>;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun	...
28*4882a593Smuzhiyun};
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