diff options
Diffstat (limited to 'Documentation/devicetree/bindings/sound')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/designware-i2s.txt | 31 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/sound/pcm512x.txt | 28 |
2 files changed, 56 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/sound/designware-i2s.txt b/Documentation/devicetree/bindings/sound/designware-i2s.txt new file mode 100644 index 000000000000..7bb54247f8e8 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/designware-i2s.txt @@ -0,0 +1,31 @@ +DesignWare I2S controller + +Required properties: + - compatible : Must be "snps,designware-i2s" + - reg : Must contain the I2S core's registers location and length + - clocks : Pairs of phandle and specifier referencing the controller's + clocks. The controller expects one clock: the clock used as the sampling + rate reference clock sample. + - clock-names : "i2sclk" for the sample rate reference clock. + - dmas: Pairs of phandle and specifier for the DMA channels that are used by + the core. The core expects one or two dma channels: one for transmit and + one for receive. + - dma-names : "tx" for the transmit channel, "rx" for the receive channel. + +For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' +properties please check: + * resource-names.txt + * clock/clock-bindings.txt + * dma/dma.txt + +Example: + + soc_i2s: i2s@7ff90000 { + compatible = "snps,designware-i2s"; + reg = <0x0 0x7ff90000 0x0 0x1000>; + clocks = <&scpi_i2sclk 0>; + clock-names = "i2sclk"; + #sound-dai-cells = <0>; + dmas = <&dma0 5>; + dma-names = "tx"; + }; diff --git a/Documentation/devicetree/bindings/sound/pcm512x.txt b/Documentation/devicetree/bindings/sound/pcm512x.txt index faff75e64573..3aae3b41bd8e 100644 --- a/Documentation/devicetree/bindings/sound/pcm512x.txt +++ b/Documentation/devicetree/bindings/sound/pcm512x.txt @@ -5,7 +5,8 @@ on the board). Required properties: - - compatible : One of "ti,pcm5121" or "ti,pcm5122" + - compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141" or + "ti,pcm5142" - reg : the I2C address of the device for I2C, the chip select number for SPI. @@ -16,9 +17,16 @@ Required properties: Optional properties: - clocks : A clock specifier for the clock connected as SCLK. If this - is absent the device will be configured to clock from BCLK. + is absent the device will be configured to clock from BCLK. If pll-in + and pll-out are specified in addition to a clock, the device is + configured to accept clock input on a specified gpio pin. -Example: + - pll-in, pll-out : gpio pins used to connect the pll using <1> + through <6>. The device will be configured for clock input on the + given pll-in pin and PLL output on the given pll-out pin. An + external connection from the pll-out pin to the SCLK pin is assumed. + +Examples: pcm5122: pcm5122@4c { compatible = "ti,pcm5122"; @@ -28,3 +36,17 @@ Example: DVDD-supply = <®_1v8>; CPVDD-supply = <®_3v3>; }; + + + pcm5142: pcm5142@4c { + compatible = "ti,pcm5142"; + reg = <0x4c>; + + AVDD-supply = <®_3v3_analog>; + DVDD-supply = <®_1v8>; + CPVDD-supply = <®_3v3>; + + clocks = <&sck>; + pll-in = <3>; + pll-out = <6>; + }; |