1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/sound/cirrus,cs35l45.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Cirrus Logic CS35L45 Speaker Amplifier 8 9maintainers: 10 - Ricardo Rivera-Matos <rriveram@opensource.cirrus.com> 11 - Richard Fitzgerald <rf@opensource.cirrus.com> 12 13description: | 14 CS35L45 is a Boosted Mono Class D Amplifier with DSP 15 Speaker Protection and Adaptive Battery Management. 16 17allOf: 18 - $ref: dai-common.yaml# 19 20properties: 21 compatible: 22 enum: 23 - cirrus,cs35l45 24 25 reg: 26 maxItems: 1 27 28 '#sound-dai-cells': 29 const: 1 30 31 reset-gpios: 32 maxItems: 1 33 34 vdd-a-supply: 35 description: voltage regulator phandle for the VDD_A supply 36 37 vdd-batt-supply: 38 description: voltage regulator phandle for the VDD_BATT supply 39 40 spi-max-frequency: 41 maximum: 5000000 42 43 cirrus,asp-sdout-hiz-ctrl: 44 description: 45 Audio serial port SDOUT Hi-Z control. Sets the Hi-Z 46 configuration for SDOUT pin of amplifier. Logical OR of 47 CS35L45_ASP_TX_HIZ_xxx values. 48 $ref: /schemas/types.yaml#/definitions/uint32 49 minimum: 0 50 maximum: 3 51 default: 2 52 53patternProperties: 54 "^cirrus,gpio-ctrl[1-3]$": 55 description: 56 GPIO pins configuration. 57 type: object 58 additionalProperties: false 59 properties: 60 gpio-dir: 61 description: 62 GPIO pin direction. Valid only when 'gpio-ctrl' is 1 63 0 = Output 64 1 = Input 65 $ref: "/schemas/types.yaml#/definitions/uint32" 66 minimum: 0 67 maximum: 1 68 default: 1 69 gpio-lvl: 70 description: 71 GPIO level. Valid only when 'gpio-ctrl' is 1 and 'gpio-dir' is 0 72 0 = Low 73 1 = High 74 $ref: "/schemas/types.yaml#/definitions/uint32" 75 minimum: 0 76 maximum: 1 77 default: 0 78 gpio-op-cfg: 79 description: 80 GPIO level. Valid only when 'gpio-ctrl' is 1 and 'gpio-dir' is 0 81 0 = CMOS 82 1 = Open Drain 83 $ref: "/schemas/types.yaml#/definitions/uint32" 84 minimum: 0 85 maximum: 1 86 default: 0 87 gpio-pol: 88 description: 89 GPIO output polarity select. Valid only when 'gpio-ctrl' is 1 90 and 'gpio-dir' is 0 91 0 = Non-inverted, Active High 92 1 = Inverted, Active Low 93 $ref: "/schemas/types.yaml#/definitions/uint32" 94 minimum: 0 95 maximum: 1 96 default: 0 97 gpio-ctrl: 98 description: 99 Defines the function of the GPIO pin. 100 GPIO1 101 0 = High impedance input 102 1 = Pin acts as a GPIO, direction controlled by 'gpio-dir' 103 2 = Pin acts as MDSYNC, direction controlled by MDSYNC 104 3-7 = Reserved 105 GPIO2 106 0 = High impedance input 107 1 = Pin acts as a GPIO, direction controlled by 'gpio-dir' 108 2 = Pin acts as open drain INT 109 3 = Reserved 110 4 = Pin acts as push-pull output INT. Active low. 111 5 = Pin acts as push-pull output INT. Active high. 112 6,7 = Reserved 113 GPIO3 114 0 = High impedance input 115 1 = Pin acts as a GPIO, direction controlled by 'gpio-dir' 116 2-7 = Reserved 117 $ref: "/schemas/types.yaml#/definitions/uint32" 118 minimum: 0 119 maximum: 7 120 default: 0 121required: 122 - compatible 123 - reg 124 - "#sound-dai-cells" 125 126unevaluatedProperties: false 127 128examples: 129 - | 130 #include <dt-bindings/sound/cs35l45.h> 131 spi { 132 #address-cells = <1>; 133 #size-cells = <0>; 134 135 cs35l45: cs35l45@2 { 136 #sound-dai-cells = <1>; 137 compatible = "cirrus,cs35l45"; 138 reg = <2>; 139 spi-max-frequency = <5000000>; 140 vdd-a-supply = <&dummy_vreg>; 141 vdd-batt-supply = <&dummy_vreg>; 142 reset-gpios = <&gpio 110 0>; 143 cirrus,asp-sdout-hiz-ctrl = <(CS35L45_ASP_TX_HIZ_UNUSED | 144 CS35L45_ASP_TX_HIZ_DISABLED)>; 145 cirrus,gpio-ctrl1 { 146 gpio-ctrl = <0x2>; 147 }; 148 cirrus,gpio-ctrl2 { 149 gpio-ctrl = <0x2>; 150 }; 151 cirrus,gpio-ctrl3 { 152 gpio-ctrl = <0x1>; 153 gpio-dir = <0x1>; 154 }; 155 }; 156 }; 157