linux-kernel - [PATCH v3 2/3] arm64: dts: imx93-9x9-qsb: add bt-sco sound card support

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Message-Id: <1729068557-10073-3-git-send-email-shengjiu.wang@nxp.com>
Date: Wed, 16 Oct 2024 16:49:16 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: 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
Subject: [PATCH v3 2/3] arm64: dts: imx93-9x9-qsb: add bt-sco sound card support

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: Frank Li <Frank.Li@....com>
---
 .../boot/dts/freescale/imx93-9x9-qsb.dts      | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
index 5cb85a83d2ef..eb872014c11d 100644
--- a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
@@ -12,6 +12,11 @@ / {
 	model = "NXP i.MX93 9x9 Quick Start Board";
 	compatible = "fsl,imx93-9x9-qsb", "fsl,imx93";
 
+	bt_sco_codec: bt-sco-codec {
+		#sound-dai-cells = <1>;
+		compatible = "linux,bt-sco";
+	};
+
 	chosen {
 		stdout-path = &lpuart1;
 	};
@@ -98,6 +103,25 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
 		off-on-delay-us = <12000>;
 	};
 
+	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 = <&sai1>;
+			dai-tdm-slot-num = <2>;
+			dai-tdm-slot-width = <16>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&bt_sco_codec 1>;
+		};
+	};
+
 	sound-wm8962 {
 		compatible = "fsl,imx-audio-wm8962";
 		model = "wm8962-audio";
@@ -339,6 +363,16 @@ &mu2 {
 	status = "okay";
 };
 
+&sai1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai1>;
+	assigned-clocks = <&clk IMX93_CLK_SAI1>;
+	assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
+	assigned-clock-rates = <12288000>;
+	fsl,sai-mclk-direction-output;
+	status = "okay";
+};
+
 &sai3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sai3>;
@@ -507,6 +541,15 @@ MX93_PAD_SD2_RESET_B__GPIO3_IO07	0x31e
 		>;
 	};
 
+	pinctrl_sai1: sai1grp {
+		fsl,pins = <
+			MX93_PAD_SAI1_TXC__SAI1_TX_BCLK			0x31e
+			MX93_PAD_SAI1_TXFS__SAI1_TX_SYNC		0x31e
+			MX93_PAD_SAI1_TXD0__SAI1_TX_DATA00		0x31e
+			MX93_PAD_SAI1_RXD0__SAI1_RX_DATA00		0x31e
+		>;
+	};
+
 	pinctrl_sai3: sai3grp {
 		fsl,pins = <
 			MX93_PAD_GPIO_IO12__SAI3_RX_SYNC		0x31e
-- 
2.34.1