Only the driver files were existing for max98090 audio codec (playback and capture) but now the max98090.dts file is also included in linux/arch/arm/boot/dts/overlays/. new file: arch/arm/boot/dts/overlays/max98090.dts Signed-off-by: Poojaa R <poojaamonica94@xxxxxxxxx> --- arch/arm/boot/dts/overlays/max98090.dts | 96 +++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 arch/arm/boot/dts/overlays/max98090.dts diff --git a/arch/arm/boot/dts/overlays/max98090.dts b/arch/arm/boot/dts/overlays/max98090.dts new file mode 100644 index 000000000000..eaf197384edb --- /dev/null +++ b/arch/arm/boot/dts/overlays/max98090.dts @@ -0,0 +1,96 @@ +/* + * Device Tree Overlay for MAX98090, MAX98091 Audio Codec. + * https://github.com/Poojaa-Rangaiah/DeviceTreeOverlay-for-MAX98090 => for more details. + * MAX98090 audio codec as master and Raspberry Pi as slave. + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2711"; + + fragment@0 { + target = <&i2s_clk_consumer>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + max98090_codec: max98090@10 { + #sound-dai-cells = <0>; + compatible = "maxim,max98090","maxim,max98091"; + reg = <0x10>; + interrupt-parent = <&gpio>; + interrupts = <27 2>; /* GPIO 27 as Edge_Falling_IRQ (2) */ + maxim,micbias = <3>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target-path = "/"; + __overlay__ { + clk_oscillator: oscillator { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <12288000>; /* Frequency of the external oscillator (mclk = 12.288 MHz) but can also be 11.2896 MHz/12 MHz/13 MHz/26 MHz/19.2 MHz. */ + clock-output-names = "mclk"; + }; + }; + }; + + fragment@3 { + target = <&sound>; + sound_overlay: __overlay__ { + compatible = "simple-audio-card"; + simple-audio-card,format = "i2s"; + simple-audio-card,name = "MAX98090-Codec"; + simple-audio-card,bitclock-master = <&dailink0_master>; + simple-audio-card,frame-master = <&dailink0_master>; + + simple-audio-card,widgets = + "Microphone", "Mic Jack", + "Speaker", "Speaker", + "Line", "Line In", + "Line", "Line Out", + "Headphone", "Headphone Jack"; + + simple-audio-card,routing = + "Headphone Jack", "HPL", + "Headphone Jack", "HPR", + "Line Out", "RCVL", + "Line Out", "RCVR", + /* Uncomment any of these below lines if the Line Input(s) is(are) used else leave it as such. */ + //"IN5", "Line In", /* IN1/IN2/IN3/IN4/IN6 (For single ended input) */ + //"IN56", "Line In", /* IN34 (For differential inputs) */ + "MIC1", "Mic Jack", + "MIC2", "Mic Jack", + "Speaker", "SPKL", + "Speaker", "SPKR"; + + status = "okay"; + + simple-audio-card,cpu { + sound-dai = <&i2s_clk_consumer>; + }; + + dailink0_master: simple-audio-card,codec { + sound-dai = <&max98090_codec>; + clocks = <&clk_oscillator>; + }; + }; + }; + + __overrides__ { + card-name = <&sound_overlay>, "simple-audio-card,name"; + }; +}; + -- 2.34.1
