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author | Mark Brown <broonie@linaro.org> | 2013-08-22 15:28:38 +0200 |
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committer | Mark Brown <broonie@linaro.org> | 2013-08-22 15:28:38 +0200 |
commit | 5bf83bf8f19792eee987b1990ab8d0a3f5505e78 (patch) | |
tree | 49555330f16648c89155307c3224793c033bf62e /Documentation | |
parent | Merge remote-tracking branch 'asoc/topic/ep93xx' into asoc-next (diff) | |
parent | ASoC: fsl: disable ssi irq for imx (diff) | |
download | linux-5bf83bf8f19792eee987b1990ab8d0a3f5505e78.tar.xz linux-5bf83bf8f19792eee987b1990ab8d0a3f5505e78.zip |
Merge remote-tracking branch 'asoc/topic/fsl' into asoc-next
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/sound/fsl,spdif.txt | 54 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/sound/fsl,ssi.txt (renamed from Documentation/devicetree/bindings/powerpc/fsl/ssi.txt) | 12 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/sound/imx-audmux.txt | 9 |
3 files changed, 75 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,spdif.txt b/Documentation/devicetree/bindings/sound/fsl,spdif.txt new file mode 100644 index 000000000000..f2ae335670f5 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,spdif.txt @@ -0,0 +1,54 @@ +Freescale Sony/Philips Digital Interface Format (S/PDIF) Controller + +The Freescale S/PDIF audio block is a stereo transceiver that allows the +processor to receive and transmit digital audio via an coaxial cable or +a fibre cable. + +Required properties: + + - compatible : Compatible list, must contain "fsl,imx35-spdif". + + - reg : Offset and length of the register set for the device. + + - interrupts : Contains the spdif interrupt. + + - dmas : Generic dma devicetree binding as described in + Documentation/devicetree/bindings/dma/dma.txt. + + - dma-names : Two dmas have to be defined, "tx" and "rx". + + - clocks : Contains an entry for each entry in clock-names. + + - clock-names : Includes the following entries: + "core" The core clock of spdif controller + "rxtx<0-7>" Clock source list for tx and rx clock. + This clock list should be identical to + the source list connecting to the spdif + clock mux in "SPDIF Transceiver Clock + Diagram" of SoC reference manual. It + can also be referred to TxClk_Source + bit of register SPDIF_STC. + +Example: + +spdif: spdif@02004000 { + compatible = "fsl,imx35-spdif"; + reg = <0x02004000 0x4000>; + interrupts = <0 52 0x04>; + dmas = <&sdma 14 18 0>, + <&sdma 15 18 0>; + dma-names = "rx", "tx"; + + clocks = <&clks 197>, <&clks 3>, + <&clks 197>, <&clks 107>, + <&clks 0>, <&clks 118>, + <&clks 62>, <&clks 139>, + <&clks 0>; + clock-names = "core", "rxtx0", + "rxtx1", "rxtx2", + "rxtx3", "rxtx4", + "rxtx5", "rxtx6", + "rxtx7"; + + status = "okay"; +}; diff --git a/Documentation/devicetree/bindings/powerpc/fsl/ssi.txt b/Documentation/devicetree/bindings/sound/fsl,ssi.txt index 5ff76c9c57d2..4303b6ab6208 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/ssi.txt +++ b/Documentation/devicetree/bindings/sound/fsl,ssi.txt @@ -43,10 +43,22 @@ Required properties: together. This would still allow different sample sizes, but not different sample rates. +Required are also ac97 link bindings if ac97 is used. See +Documentation/devicetree/bindings/sound/soc-ac97link.txt for the necessary +bindings. + Optional properties: - codec-handle: Phandle to a 'codec' node that defines an audio codec connected to this SSI. This node is typically a child of an I2C or other control node. +- fsl,fiq-stream-filter: Bool property. Disabled DMA and use FIQ instead to + filter the codec stream. This is necessary for some boards + where an incompatible codec is connected to this SSI, e.g. + on pca100 and pcm043. +- dmas: Generic dma devicetree binding as described in + Documentation/devicetree/bindings/dma/dma.txt. +- dma-names: Two dmas have to be defined, "tx" and "rx", if fsl,imx-fiq + is not defined. Child 'codec' node required properties: - compatible: Compatible list, contains the name of the codec diff --git a/Documentation/devicetree/bindings/sound/imx-audmux.txt b/Documentation/devicetree/bindings/sound/imx-audmux.txt index 215aa9817213..f88a00e54c63 100644 --- a/Documentation/devicetree/bindings/sound/imx-audmux.txt +++ b/Documentation/devicetree/bindings/sound/imx-audmux.txt @@ -5,6 +5,15 @@ Required properties: or "fsl,imx31-audmux" for the version firstly used on i.MX31. - reg : Should contain AUDMUX registers location and length +An initial configuration can be setup using child nodes. + +Required properties of optional child nodes: +- fsl,audmux-port : Integer of the audmux port that is configured by this + child node. +- fsl,port-config : List of configuration options for the specific port. For + imx31-audmux and above, it is a list of tuples <ptcr pdcr>. For + imx21-audmux it is a list of pcr values. + Example: audmux@021d8000 { |