diff options
Diffstat (limited to 'Documentation/devicetree')
5 files changed, 88 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/sound/ak4613.txt b/Documentation/devicetree/bindings/sound/ak4613.txt new file mode 100644 index 0000000..15a9195 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/ak4613.txt @@ -0,0 +1,17 @@ +AK4613 I2C transmitter + +This device supports I2C mode only. + +Required properties: + +- compatible : "asahi-kasei,ak4613" +- reg : The chip select number on the I2C bus + +Example: + +&i2c { + ak4613: ak4613@0x10 { + compatible = "asahi-kasei,ak4613"; + reg = <0x10>; + }; +}; diff --git a/Documentation/devicetree/bindings/sound/ak4642.txt b/Documentation/devicetree/bindings/sound/ak4642.txt index 623d4e7..340784d 100644 --- a/Documentation/devicetree/bindings/sound/ak4642.txt +++ b/Documentation/devicetree/bindings/sound/ak4642.txt @@ -7,7 +7,14 @@ Required properties: - compatible : "asahi-kasei,ak4642" or "asahi-kasei,ak4643" or "asahi-kasei,ak4648" - reg : The chip select number on the I2C bus -Example: +Optional properties: + + - #clock-cells : common clock binding; shall be set to 0 + - clocks : common clock binding; MCKI clock + - clock-frequency : common clock binding; frequency of MCKO + - clock-output-names : common clock binding; MCKO clock name + +Example 1: &i2c { ak4648: ak4648@0x12 { @@ -15,3 +22,16 @@ Example: reg = <0x12>; }; }; + +Example 2: + +&i2c { + ak4643: codec@12 { + compatible = "asahi-kasei,ak4643"; + reg = <0x12>; + #clock-cells = <0>; + clocks = <&audio_clock>; + clock-frequency = <12288000>; + clock-output-names = "ak4643_mcko"; + }; +}; diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt index 1173395..c57cbd6 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt @@ -4,10 +4,12 @@ Required properties: - compatible : "renesas,rcar_sound-<soctype>", fallbacks "renesas,rcar_sound-gen1" if generation1, and "renesas,rcar_sound-gen2" if generation2 + "renesas,rcar_sound-gen3" if generation3 Examples with soctypes are: - "renesas,rcar_sound-r8a7778" (R-Car M1A) - "renesas,rcar_sound-r8a7790" (R-Car H2) - "renesas,rcar_sound-r8a7791" (R-Car M2-W) + - "renesas,rcar_sound-r8a7795" (R-Car H3) - reg : Should contain the register physical address. required register is SRU/ADG/SSI if generation1 @@ -30,6 +32,11 @@ Required properties: - rcar_sound,dai : DAI contents. The number of DAI subnode should be same as HW. see below for detail. +- #sound-dai-cells : it must be 0 if your system is using single DAI + it must be 1 if your system is using multi DAI +- #clock-cells : it must be 0 if your system has audio_clkout + it must be 1 if your system has audio_clkout0/1/2/3 +- clock-frequency : for all audio_clkout0/1/2/3 SSI subnode properties: - interrupts : Should contain SSI interrupt for PIO transfer diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt new file mode 100644 index 0000000..680144b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt @@ -0,0 +1,33 @@ +* Allwinner A10 Codec + +Required properties: +- compatible: must be either "allwinner,sun4i-a10-codec" or + "allwinner,sun7i-a20-codec" +- reg: must contain the registers location and length +- interrupts: must contain the codec interrupt +- dmas: DMA channels for tx and rx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: should include "tx" and "rx". +- clocks: a list of phandle + clock-specifer pairs, one for each entry + in clock-names. +- clock-names: should contain followings: + - "apb": the parent APB clock for this controller + - "codec": the parent module clock +- routing : A list of the connections between audio components. Each + entry is a pair of strings, the first being the connection's sink, + the second being the connection's source. + + +Example: +codec: codec@01c22c00 { + #sound-dai-cells = <0>; + compatible = "allwinner,sun7i-a20-codec"; + reg = <0x01c22c00 0x40>; + interrupts = <0 30 4>; + clocks = <&apb0_gates 0>, <&codec_clk>; + clock-names = "apb", "codec"; + dmas = <&dma 0 19>, <&dma 0 19>; + dma-names = "rx", "tx"; + routing = "Headphone Jack", "HP Right", + "Headphone Jack", "HP Left"; +}; diff --git a/Documentation/devicetree/bindings/sound/tdm-slot.txt b/Documentation/devicetree/bindings/sound/tdm-slot.txt index 6a2c842..34cf70e 100644 --- a/Documentation/devicetree/bindings/sound/tdm-slot.txt +++ b/Documentation/devicetree/bindings/sound/tdm-slot.txt @@ -4,11 +4,15 @@ This specifies audio DAI's TDM slot. TDM slot properties: dai-tdm-slot-num : Number of slots in use. -dai-tdm-slot-width : Width in bits for each slot. +dai-tdm-slot-width : Width in bits for each slot. +dai-tdm-slot-tx-mask : Transmit direction slot mask, optional +dai-tdm-slot-rx-mask : Receive direction slot mask, optional For instance: dai-tdm-slot-num = <2>; dai-tdm-slot-width = <8>; + dai-tdm-slot-tx-mask = <0 1>; + dai-tdm-slot-rx-mask = <1 0>; And for each spcified driver, there could be one .of_xlate_tdm_slot_mask() to specify a explicit mapping of the channels and the slots. If it's absent @@ -18,3 +22,8 @@ tx and rx masks. For snd_soc_of_xlate_tdm_slot_mask(), the tx and rx masks will use a 1 bit for an active slot as default, and the default active bits are at the LSB of the masks. + +The explicit masks are given as array of integers, where the first +number presents bit-0 (LSB), second presents bit-1, etc. Any non zero +number is considered 1 and 0 is 0. snd_soc_of_xlate_tdm_slot_mask() +does not do anything, if either mask is set non zero value. |