Based on kernel version 5.19.17
. Page generated on 2023-08-28 22:14 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | NXP MICFIL Digital Audio Interface (MICFIL). The MICFIL digital interface provides a 16-bit audio signal from a PDM microphone bitstream in a configurable output sampling rate. Required properties: - compatible : Compatible list, contains "fsl,imx8mm-micfil" or "fsl,imx8mp-micfil" - reg : Offset and length of the register set for the device. - interrupts : Contains the micfil interrupts. - clocks : Must contain an entry for each entry in clock-names. - clock-names : Must include the "ipg_clk" for register access and "ipg_clk_app" for internal micfil clock. - dmas : Generic dma devicetree binding as described in Documentation/devicetree/bindings/dma/dma.txt. Example: micfil: micfil@30080000 { compatible = "fsl,imx8mm-micfil"; reg = <0x0 0x30080000 0x0 0x10000>; interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clk IMX8MM_CLK_PDM_IPG>, <&clk IMX8MM_CLK_PDM_ROOT>; clock-names = "ipg_clk", "ipg_clk_app"; dmas = <&sdma2 24 26 0x80000000>; }; |