| Message ID | c61a1616-e5c3-4443-9f98-8cadc7fd44ea@EX3.ad.cirrus.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Sep 16, 2016 at 04:48:41PM -0500, Paul.Handrigan@cirrus.com wrote: > From: Paul Handrigan <Paul.Handrigan@cirrus.com> > > Add device tree bindings file for the cs35l34 8V boosted > class D amplifier. > > Signed-off-by: Paul Handrigan <Paul.Handrigan@cirrus.com> > --- > .../devicetree/bindings/sound/cs35l34.txt | 64 ++++++++++++++++++++++ > 1 file changed, 64 insertions(+) > create mode 100644 Documentation/devicetree/bindings/sound/cs35l34.txt > > diff --git a/Documentation/devicetree/bindings/sound/cs35l34.txt b/Documentation/devicetree/bindings/sound/cs35l34.txt > new file mode 100644 > index 0000000..df62e77 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/cs35l34.txt > @@ -0,0 +1,64 @@ > +CS35L34 Speaker Amplifier > + > +Required properties: > + > + - compatible : "cirrus,cs35l34" > + > + - reg : the I2C address of the device for I2C. > + > + - VA-supply, VP-supply : power supplies for the device, > + as covered in > + Documentation/devicetree/bindings/regulator/regulator.txt. > + > + - cirrus,boost-vtge : Boost Voltage Value. Configures the boost converter's > + output voltage in mV. The range is from VP to 8V with increments of 100mV. Needs a unit suffix and -microvolt is preferred. > + > + - cirrus,boost-ind: Inductor value for boost converter. The value is in nH > + and they can be values of 1000nH, 1100nH, 1200nH, 1500nH, and 2200nH. Please add this unit to property-units.txt and use the suffix here. > + > +Optional properties: > + > + - reset-gpios: GPIO used to reset the amplifier. > + > + - interrupt-parent : Specifies the phandle of the interrupt controller to > + which the IRQs from CS35L34 are delivered to. > + - interrupts : IRQ line info CS35L34. > + (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt > + for further information relating to interrupt properties) > + > + - cirrus,boost-peak : Boost converter peak current limit in mA. The range > + starts at 1200mA and goes to a maximum of 3840mA with increments of 80mA. > + The default value is 2480mA. unit suffix. > + > + - cirrus,i2s-sdinloc : ADSP SDIN I2S channel location. Indicates whether the > + received mono data is in the left or right portion of the I2S frame > + according to the AD0 pin or directly via this configuration. > + 0x0 (Default) = Selected by AD0 input (if AD0 = LOW, use left channel), > + 0x2 = Left, > + 0x1 = Selected by the inversion of the AD0 input (if AD0 = LOW, use right > + channel), > + 0x3 = Right. > + > + - cirrus,gain-zc-disable: Boolean property. If set, the gain change will take > + effect without waiting for a zero cross. > + > + - cirrus,tdm_rising_edge: Boolean property. If set, data is on the rising edge of > + SCLK. Otherwise, data is on the falling edge of SCLK. Use '-', not '_'. > + > + > +Example: > + > +cs35l34: cs35l34@40 { > + compatible = "cirrus,cs35l34"; > + reg = <0x40>; > + > + interrupt-parent = <&gpio8>; > + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; > + > + reset-gpios = <&gpio 10 0>; > + > + cirrus,boost-vtge = <8000>; /* 8V */ > + cirrus,boost-ind = <1000>; /* 1uH */ > + cirrus,boost-peak = <3000>; /* 3A */ > +}; > + > -- > 1.9.1 >
diff --git a/Documentation/devicetree/bindings/sound/cs35l34.txt b/Documentation/devicetree/bindings/sound/cs35l34.txt new file mode 100644 index 0000000..df62e77 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/cs35l34.txt @@ -0,0 +1,64 @@ +CS35L34 Speaker Amplifier + +Required properties: + + - compatible : "cirrus,cs35l34" + + - reg : the I2C address of the device for I2C. + + - VA-supply, VP-supply : power supplies for the device, + as covered in + Documentation/devicetree/bindings/regulator/regulator.txt. + + - cirrus,boost-vtge : Boost Voltage Value. Configures the boost converter's + output voltage in mV. The range is from VP to 8V with increments of 100mV. + + - cirrus,boost-ind: Inductor value for boost converter. The value is in nH + and they can be values of 1000nH, 1100nH, 1200nH, 1500nH, and 2200nH. + +Optional properties: + + - reset-gpios: GPIO used to reset the amplifier. + + - interrupt-parent : Specifies the phandle of the interrupt controller to + which the IRQs from CS35L34 are delivered to. + - interrupts : IRQ line info CS35L34. + (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + for further information relating to interrupt properties) + + - cirrus,boost-peak : Boost converter peak current limit in mA. The range + starts at 1200mA and goes to a maximum of 3840mA with increments of 80mA. + The default value is 2480mA. + + - cirrus,i2s-sdinloc : ADSP SDIN I2S channel location. Indicates whether the + received mono data is in the left or right portion of the I2S frame + according to the AD0 pin or directly via this configuration. + 0x0 (Default) = Selected by AD0 input (if AD0 = LOW, use left channel), + 0x2 = Left, + 0x1 = Selected by the inversion of the AD0 input (if AD0 = LOW, use right + channel), + 0x3 = Right. + + - cirrus,gain-zc-disable: Boolean property. If set, the gain change will take + effect without waiting for a zero cross. + + - cirrus,tdm_rising_edge: Boolean property. If set, data is on the rising edge of + SCLK. Otherwise, data is on the falling edge of SCLK. + + +Example: + +cs35l34: cs35l34@40 { + compatible = "cirrus,cs35l34"; + reg = <0x40>; + + interrupt-parent = <&gpio8>; + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; + + reset-gpios = <&gpio 10 0>; + + cirrus,boost-vtge = <8000>; /* 8V */ + cirrus,boost-ind = <1000>; /* 1uH */ + cirrus,boost-peak = <3000>; /* 3A */ +}; +