[PATCH] dtoverlays: Added DT overlay file for MAX98090 and the detailed steps for its usage is included in https://github.com/Poojaa-Rangaiah/DeviceTreeOverlay-for-MAX98090 .

[Conor Dooley]

On Wed, Dec 18, 2024 at 12:28:48PM +0530, Poojaa R wrote:
> 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 at gmail.com>

Why have you send this patch for your random github tree to lkml?

Thanks,
Conor.

> ---
>  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 at 0 {
> +        target = <&i2s_clk_consumer>;
> +        __overlay__ {
> +            status = "okay";
> +        };
> +    };
> +
> +    fragment at 1 {
> +        target = <&i2c1>;
> +        __overlay__ {
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +            status = "okay";
> +            max98090_codec: max98090 at 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 at 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 at 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
> 
> 
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