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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/cirrus,cs35l41.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS35L41 Speaker Amplifier
+
+maintainers:
+ - david.rhodes@cirrus.com
+
+description: |
+ CS35L41 is a boosted mono Class D amplifier with DSP
+ speaker protection and equalization
+
+properties:
+ compatible:
+ enum:
+ - cirrus,cs35l40
+ - cirrus,cs35l41
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ '#sound-dai-cells':
+ description:
+ The first cell indicating the audio interface.
+ const: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ VA-supply:
+ description: voltage regulator phandle for the VA supply
+
+ VP-supply:
+ description: voltage regulator phandle for the VP supply
+
+ cirrus,boost-peak-milliamp:
+ description:
+ Boost-converter peak current limit in mA.
+ Configures the peak current by monitoring the current through the boost FET.
+ Range starts at 1600 mA and goes to a maximum of 4500 mA with increments
+ of 50 mA. See section 4.3.6 of the datasheet for details.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1600
+ maximum: 4500
+ default: 4500
+
+ cirrus,boost-ind-nanohenry:
+ description:
+ Boost inductor value, expressed in nH. Valid
+ values include 1000, 1200, 1500 and 2200.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1000
+ maximum: 2200
+
+ cirrus,boost-cap-microfarad:
+ description:
+ Total equivalent boost capacitance on the VBST
+ and VAMP pins, derated at 11 volts DC. The value must be rounded to the
+ nearest integer and expressed in uF.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cirrus,asp-sdout-hiz:
+ description:
+ Audio serial port SDOUT Hi-Z control. Sets the Hi-Z
+ configuration for SDOUT pin of amplifier.
+ 0 = Logic 0 during unused slots, and while all transmit channels disabled
+ 1 = Hi-Z during unused slots but logic 0 while all transmit channels disabled
+ 2 = (Default) Logic 0 during unused slots, but Hi-Z while all transmit channels disabled
+ 3 = Hi-Z during unused slots and while all transmit channels disabled
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+ default: 2
+
+ cirrus,boost-type:
+ description:
+ Configures the type of Boost being used.
+ Internal boost requires boost-peak-milliamp, boost-ind-nanohenry and
+ boost-cap-microfarad.
+ External Boost must have GPIO1 as GPIO output. GPIO1 will be set high to
+ enable boost voltage.
+ Shared boost allows two amplifiers to share a single boost circuit by
+ communicating on the MDSYNC bus. The active amplifier controls the boost
+ circuit using combined data from both amplifiers. GPIO1 should be
+ configured for Sync when shared boost is used. Shared boost is not
+ compatible with External boost. Active amplifier requires
+ boost-peak-milliamp, boost-ind-nanohenry and boost-cap-microfarad.
+ 0 = Internal Boost
+ 1 = External Boost
+ 2 = Shared Boost Active
+ 3 = Shared Boost Passive
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+
+ cirrus,gpio1-polarity-invert:
+ description:
+ Boolean which specifies whether the GPIO1
+ level is inverted. If this property is not present the level is not inverted.
+ type: boolean
+
+ cirrus,gpio1-output-enable:
+ description:
+ Boolean which specifies whether the GPIO1 pin
+ is configured as an output. If this property is not present the
+ pin will be configured as an input.
+ type: boolean
+
+ cirrus,gpio1-src-select:
+ description:
+ Configures the function of the GPIO1 pin.
+ Note that the options are different from the GPIO2 pin
+ 0 = High Impedance (Default)
+ 1 = GPIO
+ 2 = Sync
+ 3 = MCLK input
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+
+ cirrus,gpio2-polarity-invert:
+ description:
+ Boolean which specifies whether the GPIO2
+ level is inverted. If this property is not present the level is not inverted.
+ type: boolean
+
+ cirrus,gpio2-output-enable:
+ description:
+ Boolean which specifies whether the GPIO2 pin
+ is configured as an output. If this property is not present the
+ pin will be configured as an input.
+ type: boolean
+
+ cirrus,gpio2-src-select:
+ description:
+ Configures the function of the GPIO2 pin.
+ Note that the options are different from the GPIO1 pin.
+ 0 = High Impedance (Default)
+ 1 = GPIO
+ 2 = Open Drain INTB
+ 3 = MCLK input
+ 4 = Push-pull INTB (active low)
+ 5 = Push-pull INT (active high)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+
+required:
+ - compatible
+ - reg
+ - "#sound-dai-cells"
+
+allOf:
+ - $ref: dai-common.yaml#
+ - if:
+ properties:
+ cirrus,boost-type:
+ const: 0
+ then:
+ required:
+ - cirrus,boost-peak-milliamp
+ - cirrus,boost-ind-nanohenry
+ - cirrus,boost-cap-microfarad
+ else:
+ if:
+ properties:
+ cirrus,boost-type:
+ const: 1
+ then:
+ required:
+ - cirrus,gpio1-output-enable
+ - cirrus,gpio1-src-select
+ properties:
+ cirrus,boost-peak-milliamp: false
+ cirrus,boost-ind-nanohenry: false
+ cirrus,boost-cap-microfarad: false
+ cirrus,gpio1-src-select:
+ enum: [1]
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cs35l41: speaker-amp@2 {
+ #sound-dai-cells = <1>;
+ compatible = "cirrus,cs35l41";
+ reg = <2>;
+ VA-supply = <&dummy_vreg>;
+ VP-supply = <&dummy_vreg>;
+ reset-gpios = <&gpio 110 GPIO_ACTIVE_HIGH>;
+
+ cirrus,boost-type = <0>;
+ cirrus,boost-peak-milliamp = <4500>;
+ cirrus,boost-ind-nanohenry = <1000>;
+ cirrus,boost-cap-microfarad = <15>;
+ };
+ };