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dt-bindings: sound: rockchip: Add spk-ctl for audiopwm

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Change-Id: I4b0149397ffb5e9054ea94ee39ce45182f997604
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
This commit is contained in:
Sugar Zhang
2020-03-27 20:00:00 +08:00
parent 7fb3fa1531
commit b35ceabc94
1 changed files with 2 additions and 0 deletions
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2
Documentation/devicetree/bindings/sound/rockchip,audio-pwm.txt
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@@ -22,6 +22,7 @@ Optional properties:
- rockchip,sample-width-bits: Output sampling data width,the value ranges from 8 to 11 bits.
- rockchip,interpolat-points-cfg: Interpolation rate,the value must be 1/3/7/15 points,
if this is set,the linear interpolation mode will be turned on.
- spk-ctl-gpios: The gpio of speak controller.
Example for Audio PWM controller:
@@ -36,5 +37,6 @@ audpwm: audpwm@ff840000 {
pinctrl-0 = <&audpwmm0_pins>;
rockchip,sample-width-bits = <11>;
rockchip,interpolat-points = <1>;
spk-ctl-gpios = <&gpio0 RK_PC0 GPIO_ACTIVE_HIGH>;
status = "disabled";
};