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ASoC: pxa: add binding for pxa2xx-ac97 audio complex

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This adds a binding for the Marvell PXA audio complex, available in
pxa2xx and pxa3xx variants.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Robert Jarzmik 2018-06-17 12:50:00 +02:00 committed by Mark Brown
parent a7dc662c6a
commit e2b35e468c
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Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt Normal file
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Marvell PXA2xx audio complex
This descriptions matches the AC97 controller found in pxa2xx and pxa3xx series.
Required properties:
- compatible: should be one of the following:
"marvell,pxa250-ac97"
"marvell,pxa270-ac97"
"marvell,pxa300-ac97"
- reg: device MMIO address space
- interrupts: single interrupt generated by AC97 IP
- clocks: input clock of the AC97 IP, refer to clock-bindings.txt
Optional properties:
- pinctrl-names, pinctrl-0: refer to pinctrl-bindings.txt
- reset-gpios: gpio used for AC97 reset, refer to gpio.txt
Example:
ac97: sound@40500000 {
compatible = "marvell,pxa250-ac97";
reg = < 0x40500000 0x1000 >;
interrupts = <14>;
reset-gpios = <&gpio 113 GPIO_ACTIVE_HIGH>;
#sound-dai-cells = <1>;
pinctrl-names = "default";
pinctrl-0 = < &pmux_ac97_default >;
};