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Diffstat (limited to 'Documentation/devicetree/bindings/sound/cirrus,cs48l32.yaml')
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diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs48l32.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs48l32.yaml new file mode 100644 index 000000000000..bf087b57aaf6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/cirrus,cs48l32.yaml @@ -0,0 +1,195 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/cirrus,cs48l32.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cirrus Logic CS48L32 audio DSP. + +maintainers: + - patches@opensource.cirrus.com + +description: | + The CS48L32 is a high-performance low-power audio DSP for smartphones and + other portable audio devices. The CS48L32 combines a programmable Halo Core + DSP with a variety of power-efficient fixed-function audio processors. + + See also the binding headers: + + include/dt-bindings/sound/cs48l32.yaml + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - $ref: dai-common.yaml# + +properties: + compatible: + enum: + - cirrus,cs48l32 + + reg: + description: SPI chip-select number. + maxItems: 1 + + spi-max-frequency: + maximum: 25000000 + + vdd-a-supply: + description: Regulator supplying VDD_A + + vdd-d-supply: + description: Regulator supplying VDD_D + + vdd-io-supply: + description: Regulator supplying VDD_IO + + vdd-cp-supply: + description: Regulator supplying VDD_CP + + reset-gpios: + description: + One entry specifying the GPIO controlling /RESET. Although optional, + it is strongly recommended to use a hardware reset. + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: The clock supplied on MCLK1 + + clock-names: + const: mclk1 + + '#sound-dai-cells': + const: 1 + + cirrus,in-type: + description: | + A list of input type settings for each ADC input. + Inputs are one of these types: + CS48L32_IN_TYPE_DIFF : analog differential (default) + CS48L32_IN_TYPE_SE : analog single-ended + + The type of the left (L) and right (R) channel on each input is + independently configured, as are the two groups of pins muxable to + the input (referred to in the datasheet as "1" and "2"). + + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: + IN1L_1 analog input type. One of the CS48L32_IN_TYPE_xxx. + minimum: 0 + maximum: 1 + default: 0 + - description: + IN1R_1 analog input type. One of the CS48L32_IN_TYPE_xxx. + minimum: 0 + maximum: 1 + default: 0 + - description: + IN1L_2 analog input type. One of the CS48L32_IN_TYPE_xxx. + minimum: 0 + maximum: 1 + default: 0 + - description: + IN1R_2 analog input type. One of the CS48L32_IN_TYPE_xxx. + minimum: 0 + maximum: 1 + default: 0 + + cirrus,pdm-sup: + description: | + Indicate which MICBIAS output supplies bias to the microphone. + There is one cell per input (IN1, IN2, ...). + + One of the CS48L32_MICBIAS_xxx values. + CS48L32_PDM_SUP_VOUT_MIC : mic biased from VOUT_MIC + CS48L32_PDM_SUP_MICBIAS1 : mic biased from MICBIAS1 + + Also see the INn_PDM_SUP field in the datasheet. + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: IN1 PDM supply source + minimum: 0 + maximum: 1 + default: 0 + - description: IN2 PDM supply source + minimum: 0 + maximum: 1 + default: 0 + +required: + - compatible + - reg + - vdd-a-supply + - vdd-d-supply + - vdd-io-supply + - vdd-cp-supply + +additionalProperties: false + +examples: + - | + #include <dt-bindings/sound/cs48l32.h> + + spi@e0006000 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0xe0006000 0x1000>; + + codec@1 { + compatible = "cirrus,cs48l32"; + + reg = <0x1>; + spi-max-frequency = <2500000>; + + vdd-a-supply = <®ulator_1v8>; + vdd-d-supply = <®ulator_1v2>; + vdd-io-supply = <®ulator_1v8>; + vdd-cp-supply = <®ulator_1v8>; + + reset-gpios = <&gpio 0 0>; + + clocks = <&clks 0>; + clock-names = "mclk1"; + + interrupt-parent = <&gpio0>; + interrupts = <56 8>; + + #sound-dai-cells = <1>; + + cirrus,in-type = < + CS48L32_IN_TYPE_DIFF CS48L32_IN_TYPE_DIFF + CS48L32_IN_TYPE_SE CS48L32_IN_TYPE_SE + >; + + cirrus,pdm-sup = < + CS48L32_PDM_SUP_MICBIAS1 CS48L32_PDM_SUP_MICBIAS1 + >; + }; + }; + +# +# Minimal config +# + - | + #include <dt-bindings/sound/cs48l32.h> + + spi@e0006000 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0xe0006000 0x1000>; + + codec@1 { + compatible = "cirrus,cs48l32"; + + reg = <0x1>; + + vdd-a-supply = <®ulator_1v8>; + vdd-d-supply = <®ulator_1v2>; + vdd-io-supply = <®ulator_1v8>; + vdd-cp-supply = <®ulator_1v8>; + }; + }; |