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dt-bindings: sound: es8311: add some optional properties

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This patch add adc-volume/dac-volume/aec-mode and be easy to
configure some simple functions without alsa-utils.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Change-Id: Ic58188a0ef72fe5236b523445dc530e649a0e248
This commit is contained in:
Xing Zheng
2020-09-08 12:47:49 +08:00
committed by Tao Huang
parent 7f6e4f47c9
commit 0d77b2d21c
1 changed files with 15 additions and 1 deletions
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16
Documentation/devicetree/bindings/sound/es8311.txt
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@@ -9,7 +9,18 @@ Optional properties:
- clocks: The phandle of the master clock to the CODEC
- clock-names: Should be "mclk"
- adc-volume: The volume of ADC, range is: 0x00(-95dB) ~ 0xff(+32dB), 0dB is 0xbf.
- dac-volume: The volume of DAC, range is: 0x00(-95dB) ~ 0xff(+32dB), 0dB is 0xbf.
- aec-mode: The string of description AEC path between ADC and DAC, It should be:
"adc left, adc right",
"adc left, null right",
"null left, adc right",
"null left, null right",
"dac left, adc right",
"adc left, dac right",
"dac left, dac right"
And aec-mode is "adc left, adc right" by default, if the property
is not specified.
Example:
es8311: es8311@18 {
@@ -17,5 +28,8 @@ es8311: es8311@18 {
reg = <0x18>;
clocks = <&cru MCLK_I2S0_TX_OUT2IO>;
clock-names = "mclk";
adc-volume = <0xbf>; /* 0dB */
dac-volume = <0xbf>; /* 0dB */
aec-mode = "dac left, adc right";
spk-ctl-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
};