On Mon, Dec 10, 2018 at 09:21:14AM +0000, Cosmin Samoila wrote:
Document the bindings for MICFIL DAI.
Signed-off-by: Cosmin-Gabriel Samoila cosmin.samoila@nxp.com
.../devicetree/bindings/sound/fsl,micfil.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,micfil.txt
diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.txt b/Documentation/devicetree/bindings/sound/fsl,micfil.txt new file mode 100644 index 0000000..2aa4526 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,micfil.txt @@ -0,0 +1,38 @@ +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"
- 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.
- dma-names : One "rx" dma must be configured.
You don't need -names when there is only one.
+Example: +micfil: micfil@30080000 {
- compatible = "fsl,imx8mm-micfil";
- reg = <0x0 0x30080000 0x0 0x10000>;
- interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,<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>;
- dma-names = "rx";
- status = "disabled";
Don't show status in examples.
+};
2.7.4