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| 1 | +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/sound/cirrus,cs48l32.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Cirrus Logic CS48L32 audio DSP. |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - patches@opensource.cirrus.com |
| 11 | + |
| 12 | +description: | |
| 13 | + The CS48L32 is a high-performance low-power audio DSP for smartphones and |
| 14 | + other portable audio devices. The CS48L32 combines a programmable Halo Core |
| 15 | + DSP with a variety of power-efficient fixed-function audio processors. |
| 16 | +
|
| 17 | + See also the binding headers: |
| 18 | +
|
| 19 | + include/dt-bindings/sound/cs48l32.yaml |
| 20 | +
|
| 21 | +allOf: |
| 22 | + - $ref: /schemas/spi/spi-peripheral-props.yaml# |
| 23 | + - $ref: dai-common.yaml# |
| 24 | + |
| 25 | +properties: |
| 26 | + compatible: |
| 27 | + enum: |
| 28 | + - cirrus,cs48l32 |
| 29 | + |
| 30 | + reg: |
| 31 | + description: SPI chip-select number. |
| 32 | + maxItems: 1 |
| 33 | + |
| 34 | + spi-max-frequency: |
| 35 | + maximum: 25000000 |
| 36 | + |
| 37 | + vdd-a-supply: |
| 38 | + description: Regulator supplying VDD_A |
| 39 | + |
| 40 | + vdd-d-supply: |
| 41 | + description: Regulator supplying VDD_D |
| 42 | + |
| 43 | + vdd-io-supply: |
| 44 | + description: Regulator supplying VDD_IO |
| 45 | + |
| 46 | + vdd-cp-supply: |
| 47 | + description: Regulator supplying VDD_CP |
| 48 | + |
| 49 | + reset-gpios: |
| 50 | + description: |
| 51 | + One entry specifying the GPIO controlling /RESET. Although optional, |
| 52 | + it is strongly recommended to use a hardware reset. |
| 53 | + maxItems: 1 |
| 54 | + |
| 55 | + interrupts: |
| 56 | + maxItems: 1 |
| 57 | + |
| 58 | + clocks: |
| 59 | + items: |
| 60 | + - description: The clock supplied on MCLK1 |
| 61 | + |
| 62 | + clock-names: |
| 63 | + const: mclk1 |
| 64 | + |
| 65 | + '#sound-dai-cells': |
| 66 | + const: 1 |
| 67 | + |
| 68 | + cirrus,in-type: |
| 69 | + description: | |
| 70 | + A list of input type settings for each ADC input. |
| 71 | + Inputs are one of these types: |
| 72 | + CS48L32_IN_TYPE_DIFF : analog differential (default) |
| 73 | + CS48L32_IN_TYPE_SE : analog single-ended |
| 74 | +
|
| 75 | + The type of the left (L) and right (R) channel on each input is |
| 76 | + independently configured, as are the two groups of pins muxable to |
| 77 | + the input (referred to in the datasheet as "1" and "2"). |
| 78 | +
|
| 79 | + $ref: /schemas/types.yaml#/definitions/uint32-array |
| 80 | + items: |
| 81 | + - description: |
| 82 | + IN1L_1 analog input type. One of the CS48L32_IN_TYPE_xxx. |
| 83 | + minimum: 0 |
| 84 | + maximum: 1 |
| 85 | + default: 0 |
| 86 | + - description: |
| 87 | + IN1R_1 analog input type. One of the CS48L32_IN_TYPE_xxx. |
| 88 | + minimum: 0 |
| 89 | + maximum: 1 |
| 90 | + default: 0 |
| 91 | + - description: |
| 92 | + IN1L_2 analog input type. One of the CS48L32_IN_TYPE_xxx. |
| 93 | + minimum: 0 |
| 94 | + maximum: 1 |
| 95 | + default: 0 |
| 96 | + - description: |
| 97 | + IN1R_2 analog input type. One of the CS48L32_IN_TYPE_xxx. |
| 98 | + minimum: 0 |
| 99 | + maximum: 1 |
| 100 | + default: 0 |
| 101 | + |
| 102 | + cirrus,pdm-sup: |
| 103 | + description: | |
| 104 | + Indicate which MICBIAS output supplies bias to the microphone. |
| 105 | + There is one cell per input (IN1, IN2, ...). |
| 106 | +
|
| 107 | + One of the CS48L32_MICBIAS_xxx values. |
| 108 | + CS48L32_PDM_SUP_VOUT_MIC : mic biased from VOUT_MIC |
| 109 | + CS48L32_PDM_SUP_MICBIAS1 : mic biased from MICBIAS1 |
| 110 | +
|
| 111 | + Also see the INn_PDM_SUP field in the datasheet. |
| 112 | + $ref: /schemas/types.yaml#/definitions/uint32-array |
| 113 | + items: |
| 114 | + - description: IN1 PDM supply source |
| 115 | + minimum: 0 |
| 116 | + maximum: 1 |
| 117 | + default: 0 |
| 118 | + - description: IN2 PDM supply source |
| 119 | + minimum: 0 |
| 120 | + maximum: 1 |
| 121 | + default: 0 |
| 122 | + |
| 123 | +required: |
| 124 | + - compatible |
| 125 | + - reg |
| 126 | + - vdd-a-supply |
| 127 | + - vdd-d-supply |
| 128 | + - vdd-io-supply |
| 129 | + - vdd-cp-supply |
| 130 | + |
| 131 | +additionalProperties: false |
| 132 | + |
| 133 | +examples: |
| 134 | + - | |
| 135 | + #include <dt-bindings/sound/cs48l32.h> |
| 136 | +
|
| 137 | + spi@e0006000 { |
| 138 | + #address-cells = <1>; |
| 139 | + #size-cells = <0>; |
| 140 | + reg = <0xe0006000 0x1000>; |
| 141 | +
|
| 142 | + codec@1 { |
| 143 | + compatible = "cirrus,cs48l32"; |
| 144 | +
|
| 145 | + reg = <0x1>; |
| 146 | + spi-max-frequency = <2500000>; |
| 147 | +
|
| 148 | + vdd-a-supply = <®ulator_1v8>; |
| 149 | + vdd-d-supply = <®ulator_1v2>; |
| 150 | + vdd-io-supply = <®ulator_1v8>; |
| 151 | + vdd-cp-supply = <®ulator_1v8>; |
| 152 | +
|
| 153 | + reset-gpios = <&gpio 0 0>; |
| 154 | +
|
| 155 | + clocks = <&clks 0>; |
| 156 | + clock-names = "mclk1"; |
| 157 | +
|
| 158 | + interrupt-parent = <&gpio0>; |
| 159 | + interrupts = <56 8>; |
| 160 | +
|
| 161 | + #sound-dai-cells = <1>; |
| 162 | +
|
| 163 | + cirrus,in-type = < |
| 164 | + CS48L32_IN_TYPE_DIFF CS48L32_IN_TYPE_DIFF |
| 165 | + CS48L32_IN_TYPE_SE CS48L32_IN_TYPE_SE |
| 166 | + >; |
| 167 | +
|
| 168 | + cirrus,pdm-sup = < |
| 169 | + CS48L32_PDM_SUP_MICBIAS1 CS48L32_PDM_SUP_MICBIAS1 |
| 170 | + >; |
| 171 | + }; |
| 172 | + }; |
| 173 | +
|
| 174 | +# |
| 175 | +# Minimal config |
| 176 | +# |
| 177 | + - | |
| 178 | + #include <dt-bindings/sound/cs48l32.h> |
| 179 | +
|
| 180 | + spi@e0006000 { |
| 181 | + #address-cells = <1>; |
| 182 | + #size-cells = <0>; |
| 183 | + reg = <0xe0006000 0x1000>; |
| 184 | +
|
| 185 | + codec@1 { |
| 186 | + compatible = "cirrus,cs48l32"; |
| 187 | +
|
| 188 | + reg = <0x1>; |
| 189 | +
|
| 190 | + vdd-a-supply = <®ulator_1v8>; |
| 191 | + vdd-d-supply = <®ulator_1v2>; |
| 192 | + vdd-io-supply = <®ulator_1v8>; |
| 193 | + vdd-cp-supply = <®ulator_1v8>; |
| 194 | + }; |
| 195 | + }; |
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