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Date: Wed, 19 Dec 2018 22:49:07 +0530 From: Maruthi Srinivas Bayyavarapu <maruthi.srinivas.bayyavarapu@...inx.com> To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Vishal Sagar <vsagar@...inx.com>, Michal Simek <michal.simek@...inx.com>, Maruthi Srinivas Bayyavarapu <maruthi.srinivas.bayyavarapu@...inx.com>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <alsa-devel@...a-project.org>, <linux-arm-kernel@...ts.infradead.org> Subject: [PATCH 1/3] dt-bindings: ASoC: xlnx,audio-formatter: Document audio formatter bindings Added documentation for audio formatter IP core DT bindings. Signed-off-by: Maruthi Srinivas Bayyavarapu <maruthi.srinivas.bayyavarapu@...inx.com> --- .../bindings/sound/xlnx,audio-formatter.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt diff --git a/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt b/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt new file mode 100644 index 0000000..cbc93c8 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt @@ -0,0 +1,29 @@ +Device-Tree bindings for Xilinx PL audio formatter + +The IP core supports DMA, data formatting(AES<->PCM conversion) +of audio samples. + +Required properties: + - compatible: "xlnx,audio-formatter-1.0" + - interrupt-names: Names specified to list of interrupts in same + order mentioned under "interrupts". + List of supported interrupt names are: + "irq_mm2s" : interrupt from MM2S block + "irq_s2mm" : interrupt from S2MM block + - interrupts-parent: Phandle for interrupt controller. + - interrupts: List of Interrupt numbers. + - reg: Base address and size of the IP core instance. + - clock-names: List of input clocks. + Required elements: "s_axi_lite_aclk", "aud_mclk" + - clocks: Input clock specifier. Refer to common clock bindings. + +Example: + audio_ss_0_audio_formatter_0: audio_formatter@...10000 { + compatible = "xlnx,audio-formatter-1.0"; + interrupt-names = "irq_mm2s", "irq_s2mm"; + interrupt-parent = <&gic>; + interrupts = <0 104 4>, <0 105 4>; + reg = <0x0 0x80010000 0x0 0x1000>; + clock-names = "s_axi_lite_aclk", "aud_mclk"; + clocks = <&clk 71>, <&clk_wiz_1 0>; + }; -- 2.7.4
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