linux-kernel - Re: [PATCH 2/2] arm64: dts: imx8mp-evk: add bt-sco sound card support

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Message-ID: <CAEnQRZDoiVSD+CQoS6kcmTVbacDU=Ct3SJe5__Z5JBPAofeVrw@mail.gmail.com>
Date: Thu, 9 May 2024 17:16:11 +0300
From: Daniel Baluta <daniel.baluta@...il.com>
To: Shengjiu Wang <shengjiu.wang@....com>
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, 
	shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de, 
	festevam@...il.com, devicetree@...r.kernel.org, imx@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	shengjiu.wang@...il.com, Daniel Baluta <daniel.baluta@....com>
Subject: Re: [PATCH 2/2] arm64: dts: imx8mp-evk: add bt-sco sound card support

On Thu, May 9, 2024 at 8:37 AM Shengjiu Wang <shengjiu.wang@....com> wrote:
>
> Add bt-sco sound card, which is used by BT HFP case.
> It supports wb profile as default
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>

Reviewed-by: Daniel Baluta <daniel.baluta@....com>


> ---
>  arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 44 ++++++++++++++++++++
>  1 file changed, 44 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> index 8be5b2a57f27..b2225cb710b6 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> @@ -114,6 +114,11 @@ reg_vext_3v3: regulator-vext-3v3 {
>                 regulator-max-microvolt = <3300000>;
>         };
>
> +       audio_codec_bt_sco: audio-codec-bt-sco {
> +               compatible = "linux,bt-sco";
> +               #sound-dai-cells = <1>;
> +       };
> +
>         sound {
>                 compatible = "simple-audio-card";
>                 simple-audio-card,name = "wm8960-audio";
> @@ -145,6 +150,25 @@ simple-audio-card,codec {
>
>         };
>
> +       sound-bt-sco {
> +               compatible = "simple-audio-card";
> +               simple-audio-card,name = "bt-sco-audio";
> +               simple-audio-card,format = "dsp_a";
> +               simple-audio-card,bitclock-inversion;
> +               simple-audio-card,frame-master = <&btcpu>;
> +               simple-audio-card,bitclock-master = <&btcpu>;
> +
> +               btcpu: simple-audio-card,cpu {
> +                       sound-dai = <&sai2>;
> +                       dai-tdm-slot-num = <2>;
> +                       dai-tdm-slot-width = <16>;
> +               };
> +
> +               simple-audio-card,codec {
> +                       sound-dai = <&audio_codec_bt_sco 1>;
> +               };
> +       };
> +
>         sound-hdmi {
>                 compatible = "fsl,imx-audio-hdmi";
>                 model = "audio-hdmi";
> @@ -608,6 +632,17 @@ &pwm4 {
>         status = "okay";
>  };
>
> +&sai2 {
> +       #sound-dai-cells = <0>;
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_sai2>;
> +       assigned-clocks = <&clk IMX8MP_CLK_SAI2>;
> +       assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
> +       assigned-clock-rates = <12288000>;
> +       fsl,sai-mclk-direction-output;
> +       status = "okay";
> +};
> +
>  &sai3 {
>         pinctrl-names = "default";
>         pinctrl-0 = <&pinctrl_sai3>;
> @@ -880,6 +915,15 @@ MX8MP_IOMUXC_UART3_TXD__UART1_DCE_RTS      0x140
>                 >;
>         };
>
> +       pinctrl_sai2: sai2grp {
> +               fsl,pins = <
> +                       MX8MP_IOMUXC_SAI2_TXC__AUDIOMIX_SAI2_TX_BCLK    0xd6
> +                       MX8MP_IOMUXC_SAI2_TXFS__AUDIOMIX_SAI2_TX_SYNC   0xd6
> +                       MX8MP_IOMUXC_SAI2_TXD0__AUDIOMIX_SAI2_TX_DATA00 0xd6
> +                       MX8MP_IOMUXC_SAI2_RXD0__AUDIOMIX_SAI2_RX_DATA00 0xd6
> +               >;
> +       };
> +
>         pinctrl_sai3: sai3grp {
>                 fsl,pins = <
>                         MX8MP_IOMUXC_SAI3_TXFS__AUDIOMIX_SAI3_TX_SYNC   0xd6
> --
> 2.34.1
>
>