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-Cirrus Logic Madera class audio codecs
-
-This describes audio configuration bindings for these codecs.
-
-See also the core bindings for the parent MFD driver:
-See Documentation/devicetree/bindings/mfd/madera.txt
-
-and defines for values used in these bindings:
-include/dt-bindings/sound/madera.h
-
-These properties are all contained in the parent MFD node.
-
-Optional properties:
- - cirrus,dmic-ref : Indicates how the MICBIAS pins have been externally
- connected to DMICs on each input, one cell per input.
- <IN1 IN2 IN3 ...>
- A value of 0 indicates MICVDD and is the default, other values depend on the
- codec:
- For CS47L35 one of the CS47L35_DMIC_REF_xxx values
- For all other codecs one of the MADERA_DMIC_REF_xxx values
- Also see the datasheet for a description of the INn_DMIC_SUP field.
-
- - cirrus,inmode : A list of input mode settings for each input. A maximum of
- 16 cells, with four cells per input in the order INnAL, INnAR INnBL INnBR.
- For non-muxed inputs the first two cells for that input set the mode for
- the left and right channel and the second two cells must be 0.
- For muxed inputs the first two cells for that input set the mode of the
- left and right A inputs and the second two cells set the mode of the left
- and right B inputs.
- Valid mode values are one of the MADERA_INMODE_xxx. If the array is shorter
- than the number of inputs the unspecified inputs default to
- MADERA_INMODE_DIFF.
-
- - cirrus,out-mono : Mono bit for each output, maximum of six cells if the
- array is shorter outputs will be set to stereo.
-
- - cirrus,max-channels-clocked : Maximum number of channels that I2S clocks
- will be generated for. Useful when clock master for systems where the I2S
- bus has multiple data lines.
- One cell for each AIF, use a value of zero for AIFs that should be handled
- normally.
-
- - cirrus,pdm-fmt : PDM speaker data format, must contain 2 cells
- (OUT5 and OUT6). See the PDM_SPKn_FMT field in the datasheet for a
- description of this value.
- The second cell is ignored for codecs that do not have OUT6.
-
- - cirrus,pdm-mute : PDM mute format, must contain 2 cells
- (OUT5 and OUT6). See the PDM_SPKn_CTRL_1 register in the datasheet for a
- description of this value.
- The second cell is ignored for codecs that do not have OUT6.
-
-Example:
-
-cs47l35@0 {
- compatible = "cirrus,cs47l35";
-
- cirrus,dmic-ref = <0 0 CS47L35_DMIC_REF_MICBIAS1B 0>;
- cirrus,inmode = <
- MADERA_INMODE_DMIC MADERA_INMODE_DMIC /* IN1A digital */
- MADERA_INMODE_SE MADERA_INMODE_SE /* IN1B single-ended */
- MADERA_INMODE_DIFF MADERA_INMODE_DIFF /* IN2 differential */
- 0 0 /* not used on this codec */
- >;
- cirrus,out-mono = <0 0 0 0 0 0>;
- cirrus,max-channels-clocked = <2 0 0>;
-};