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Diffstat (limited to 'Documentation/devicetree/bindings/sound')
4 files changed, 116 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/ak4613.txt b/Documentation/devicetree/bindings/sound/ak4613.txt index 15a919522b42..1783f9ef0930 100644 --- a/Documentation/devicetree/bindings/sound/ak4613.txt +++ b/Documentation/devicetree/bindings/sound/ak4613.txt @@ -7,6 +7,16 @@ Required properties: - compatible : "asahi-kasei,ak4613" - reg : The chip select number on the I2C bus +Optional properties: +- asahi-kasei,in1-single-end : Boolean. Indicate input / output pins are single-ended. +- asahi-kasei,in2-single-end rather than differential. +- asahi-kasei,out1-single-end +- asahi-kasei,out2-single-end +- asahi-kasei,out3-single-end +- asahi-kasei,out4-single-end +- asahi-kasei,out5-single-end +- asahi-kasei,out6-single-end + Example: &i2c { diff --git a/Documentation/devicetree/bindings/sound/atmel-pdmic.txt b/Documentation/devicetree/bindings/sound/atmel-pdmic.txt new file mode 100644 index 000000000000..e0875f17c229 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/atmel-pdmic.txt @@ -0,0 +1,55 @@ +* Atmel PDMIC driver under ALSA SoC architecture + +Required properties: +- compatible + Should be "atmel,sama5d2-pdmic". +- reg + Should contain PDMIC registers location and length. +- interrupts + Should contain the IRQ line for the PDMIC. +- dmas + One DMA specifiers as described in atmel-dma.txt and dma.txt files. +- dma-names + Must be "rx". +- clock-names + Required elements: + - "pclk" peripheral clock + - "gclk" generated clock +- clocks + Must contain an entry for each required entry in clock-names. + Please refer to clock-bindings.txt. +- atmel,mic-min-freq + The minimal frequency that the micphone supports. +- atmel,mic-max-freq + The maximal frequency that the micphone supports. + +Optional properties: +- pinctrl-names, pinctrl-0 + Please refer to pinctrl-bindings.txt. +- atmel,model + The user-visible name of this sound card. + The default value is "PDMIC". +- atmel,mic-offset + The offset that should be added. + The range is from -32768 to 32767. + The default value is 0. + +Example: + pdmic@f8018000 { + compatible = "atmel,sama5d2-pdmic"; + reg = <0xf8018000 0x124>; + interrupts = <48 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) + | AT91_XDMAC_DT_PERID(50))>; + dma-names = "rx"; + clocks = <&pdmic_clk>, <&pdmic_gclk>; + clock-names = "pclk", "gclk"; + + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pdmic_default>; + atmel,model = "PDMIC @ sama5d2_xplained"; + atmel,mic-min-freq = <1000000>; + atmel,mic-max-freq = <3246000>; + atmel,mic-offset = <0x0>; + }; diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt index c92966bd5488..0dce690f78f5 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt @@ -14,6 +14,9 @@ Required properties: - "apb": the parent APB clock for this controller - "codec": the parent module clock +Optional properties: +- allwinner,pa-gpios: gpio to enable external amplifier + Example: codec: codec@01c22c00 { #sound-dai-cells = <0>; diff --git a/Documentation/devicetree/bindings/sound/ti,pcm3168a.txt b/Documentation/devicetree/bindings/sound/ti,pcm3168a.txt new file mode 100644 index 000000000000..5d9cb84c661d --- /dev/null +++ b/Documentation/devicetree/bindings/sound/ti,pcm3168a.txt @@ -0,0 +1,48 @@ +Texas Instruments pcm3168a DT bindings + +This driver supports both SPI and I2C bus access for this codec + +Required properties: + + - compatible: "ti,pcm3168a" + + - clocks : Contains an entry for each entry in clock-names + + - clock-names : Includes the following entries: + "scki" The system clock + + - VDD1-supply : Digital power supply regulator 1 (+3.3V) + + - VDD2-supply : Digital power supply regulator 2 (+3.3V) + + - VCCAD1-supply : ADC power supply regulator 1 (+5V) + + - VCCAD2-supply : ADC power supply regulator 2 (+5V) + + - VCCDA1-supply : DAC power supply regulator 1 (+5V) + + - VCCDA2-supply : DAC power supply regulator 2 (+5V) + +For required properties on SPI/I2C, consult SPI/I2C device tree documentation + +Examples: + +i2c0: i2c0@0 { + + ... + + pcm3168a: audio-codec@44 { + compatible = "ti,pcm3168a"; + reg = <0x44>; + clocks = <&clk_core CLK_AUDIO>; + clock-names = "scki"; + VDD1-supply = <&supply3v3>; + VDD2-supply = <&supply3v3>; + VCCAD1-supply = <&supply5v0>; + VCCAD2-supply = <&supply5v0>; + VCCDA1-supply = <&supply5v0>; + VCCDA2-supply = <&supply5v0>; + pinctrl-names = "default"; + pinctrl-0 = <&dac_clk_pin>; + }; +}; |