arm64: dts: imx8mq: Support TDM format for audio sound card

Support TDM format for audio sound card

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk-pdm.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk-pdm.dts
new file mode 100644
index 000000000000..0f5d7b73df5e
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk-pdm.dts
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "imx8mq-evk.dts"
+
+/ {
+	sound-pdm {
+		compatible = "fsl,imx-pdm-mic";
+		model = "imx-pdm-audio";
+		audio-cpu = <&sai3>;
+		decimation = <64>;
+		status = "okay";
+	};
+};
+
+&iomuxc {
+	pinctrl_sai3: sai3grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SAI3_RXC_SAI3_RX_BCLK	0xd6
+			MX8MQ_IOMUXC_SAI3_RXD_SAI3_RX_DATA0	0xd6
+		>;
+	};
+};
+
+&sai3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai3>;
+	assigned-clocks = <&clk IMX8MQ_CLK_SAI3>;
+	assigned-clock-parents = <&clk IMX8MQ_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <24576000>;
+	status = "okay";
+};