From 2267782fa058fea126f75ba2db2118d79bcdc34f Mon Sep 17 00:00:00 2001 From: Adrian Alonso Date: Fri, 1 Dec 2017 10:21:28 -0600 Subject: 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 Reviewed-by: Shengjiu Wang --- Documentation/devicetree/bindings/sound/imx-pdm-mic.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/imx-pdm-mic.txt (limited to 'Documentation/devicetree/bindings/sound') diff --git a/Documentation/devicetree/bindings/sound/imx-pdm-mic.txt b/Documentation/devicetree/bindings/sound/imx-pdm-mic.txt new file mode 100644 index 000000000000..bde8313cba7e --- /dev/null +++ b/Documentation/devicetree/bindings/sound/imx-pdm-mic.txt @@ -0,0 +1,16 @@ +Freescale i.MX audio complex PDM microphone + +Required properties: +- compatible: "fsl,imx-pdm-mic" +- model: The user-visible name of this sound complex +- audio-cpu : The phandle of the i.MX SAI controller +- decimation : The PDM decimation factor <64> + +Example: + +sound-pdm { + compatible = "fsl,imx-pdm-mic"; + model = "imx-pdm-audio"; + audio-cpu = <&sai3>; + decimation = <64>; +}; -- cgit v1.2.3