mirror of https://gitee.com/openkylin/linux.git
ALSA: ac97: add bus binding for codecs
Add the generic ac97 bus binding, especially for ac97 codecs discovered by ac97 hardware probing. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
parent
ce397d215c
commit
cc51574ad2
|
@ -0,0 +1,32 @@
|
|||
Generic AC97 Device Properties
|
||||
|
||||
This documents describes the devicetree bindings for an ac97 controller child
|
||||
node describing ac97 codecs.
|
||||
|
||||
Required properties:
|
||||
-compatible : Must be "ac97,vendor_id1,vendor_id2
|
||||
The ids shall be the 4 characters hexadecimal encoding, such as
|
||||
given by "%04x" formatting of printf
|
||||
-reg : Must be the ac97 codec number, between 0 and 3
|
||||
|
||||
Example:
|
||||
ac97: sound@40500000 {
|
||||
compatible = "marvell,pxa270-ac97";
|
||||
reg = < 0x40500000 0x1000 >;
|
||||
interrupts = <14>;
|
||||
reset-gpios = <&gpio 95 GPIO_ACTIVE_HIGH>;
|
||||
#sound-dai-cells = <1>;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = < &pinctrl_ac97_default >;
|
||||
clocks = <&clks CLK_AC97>, <&clks CLK_AC97CONF>;
|
||||
clock-names = "AC97CLK", "AC97CONFCLK";
|
||||
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
audio-codec@0 {
|
||||
reg = <0>;
|
||||
compatible = "ac97,574d,4c13";
|
||||
clocks = <&fixed_wm9713_clock>;
|
||||
clock-names = "ac97_clk";
|
||||
}
|
||||
};
|
Loading…
Reference in New Issue