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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/sound/designware-i2s.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/sound/designware-i2s.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/designware-i2s.txt b/Documentation/devicetree/bindings/sound/designware-i2s.txt new file mode 100644 index 000000000..6a536d570 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/designware-i2s.txt @@ -0,0 +1,35 @@ +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. + +Optional properties: + - interrupts: The interrupt line number for the I2S controller. Add this + parameter if the I2S controller that you are using does not support DMA. + +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"; + }; |