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ASoC: cs35l34: Add device tree bindings file for cs35l34
Add device tree bindings file for the cs35l34 8V boosted
class D amplifier.
Signed-off-by: Paul Handrigan <Paul.Handrigan@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
authored by
Paul Handrigan
and committed by
Mark Brown
e58dfab6
1001354c
+64
+64
Documentation/devicetree/bindings/sound/cs35l34.txt
+64
Documentation/devicetree/bindings/sound/cs35l34.txt
···
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CS35L34 Speaker Amplifier
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Required properties:
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- compatible : "cirrus,cs35l34"
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- reg : the I2C address of the device for I2C.
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- VA-supply, VP-supply : power supplies for the device,
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as covered in
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Documentation/devicetree/bindings/regulator/regulator.txt.
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- cirrus,boost-vtge-millivolt : Boost Voltage Value. Configures the boost
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converter's output voltage in mV. The range is from VP to 8V with
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increments of 100mV.
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- cirrus,boost-nanohenry: Inductor value for boost converter. The value is
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in nH and they can be values of 1000nH, 1100nH, 1200nH, 1500nH, and 2200nH.
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Optional properties:
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- reset-gpios: GPIO used to reset the amplifier.
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- interrupt-parent : Specifies the phandle of the interrupt controller to
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which the IRQs from CS35L34 are delivered to.
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- interrupts : IRQ line info CS35L34.
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(See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
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for further information relating to interrupt properties)
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- cirrus,boost-peak-milliamp : Boost converter peak current limit in mA. The
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range starts at 1200mA and goes to a maximum of 3840mA with increments of
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80mA. The default value is 2480mA.
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- cirrus,i2s-sdinloc : ADSP SDIN I2S channel location. Indicates whether the
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received mono data is in the left or right portion of the I2S frame
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according to the AD0 pin or directly via this configuration.
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0x0 (Default) = Selected by AD0 input (if AD0 = LOW, use left channel),
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0x2 = Left,
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0x1 = Selected by the inversion of the AD0 input (if AD0 = LOW, use right
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channel),
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0x3 = Right.
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- cirrus,gain-zc-disable: Boolean property. If set, the gain change will take
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effect without waiting for a zero cross.
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- cirrus,tdm-rising-edge: Boolean property. If set, data is on the rising edge of
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SCLK. Otherwise, data is on the falling edge of SCLK.
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Example:
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cs35l34: cs35l34@40 {
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compatible = "cirrus,cs35l34";
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reg = <0x40>;
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interrupt-parent = <&gpio8>;
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interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
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reset-gpios = <&gpio 10 0>;
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cirrus,boost-vtge-milltvolt = <8000>; /* 8V */
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cirrus,boost-ind-nanohenry = <1000>; /* 1uH */
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cirrus,boost-peak-milliamp = <3000>; /* 3A */
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};