diff options
author | Adrian Alonso <adrian.alonso@nxp.com> | 2017-12-01 10:21:28 -0600 |
---|---|---|
committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:29:37 +0800 |
commit | 9ba9637cf63be0e21c352dc7c579601866dce61c (patch) | |
tree | 7ce1d24f8ee52f3e8437943dedc5a8135c836bef /arch/arm64/boot/dts/freescale/fsl-imx8mq-evk-pdm.dts | |
parent | ea0e71e55cae9358a3563a0a2df5423ff5f74832 (diff) |
MLK-16929-3: dts: arm64: fsl imx8mq evk pdm mic support
Add pdm mic support on imx8mq evk platform
Hardware modifications connect PDM mic:
PDM pin SAI-3 pad Test point
------------------------------------
BCLK SAI3_RXC TP1802
DATA SAI3_RXD TP1804
Signed-off-by: Adrian Alonso <adrian.alonso@nxp.com>
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/fsl-imx8mq-evk-pdm.dts')
-rw-r--r-- | arch/arm64/boot/dts/freescale/fsl-imx8mq-evk-pdm.dts | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/fsl-imx8mq-evk-pdm.dts b/arch/arm64/boot/dts/freescale/fsl-imx8mq-evk-pdm.dts new file mode 100644 index 000000000000..a2e84eea463b --- /dev/null +++ b/arch/arm64/boot/dts/freescale/fsl-imx8mq-evk-pdm.dts @@ -0,0 +1,47 @@ +/* + * 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 "fsl-imx8mq-evk.dts" + +/ { + sound-pdm { + compatible = "fsl,imx-pdm-mic"; + model = "imx-pdm-audio"; + audio-cpu = <&sai3>; + decimation = <64>; + status = "okay"; + }; +}; + +&iomuxc { + imx8mq-evk { + 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_SRC>, + <&clk IMX8MQ_CLK_SAI3_DIV>; + assigned-clock-parents = <&clk IMX8MQ_AUDIO_PLL1_OUT>; + assigned-clock-rates = <0>, <24576000>; + status = "okay"; +}; |