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| author | Michael Sit Wei Hong <michael.wei.hong.sit@intel.com> | 2021-01-08 04:12:47 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-01-08 19:23:42 +0100 |
| commit | 9ddaa1e6181b3d33080f2ed7c27cb0bba819e562 (patch) | |
| tree | f863acff06082587dd6b46423dcba74d6f38855c /Documentation/devicetree/bindings | |
| parent | ASoC: Intel: KMB: Enable DMA transfer mode (diff) | |
| download | linux-9ddaa1e6181b3d33080f2ed7c27cb0bba819e562.tar.xz linux-9ddaa1e6181b3d33080f2ed7c27cb0bba819e562.zip | |
ASoC: intel, keembay-i2s: Add info for device to use DMA
Add descriptions for entries needed for audio device to use DMA
channels for audio playback and capture.
Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210108031248.20520-5-michael.wei.hong.sit@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml b/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml index d346e61ab708..e0658f122cbb 100644 --- a/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml +++ b/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml @@ -45,6 +45,18 @@ properties: - const: osc - const: apb_clk + dmas: + items: + - description: DMA controller phandle and DMA channel + for TX and RX + + dma-names: + items: + - description: "tx" for the transmit channel + "rx" for the receive channel + - const: tx + - const: rx + required: - compatible - "#sound-dai-cells" @@ -70,4 +82,6 @@ examples: interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>; clock-names = "osc", "apb_clk"; clocks = <&scmi_clk KEEM_BAY_PSS_AUX_I2S3>, <&scmi_clk KEEM_BAY_PSS_I2S3>; + dmas = <&axi_dma0 29 &axi_dma0 33>; + dma-names = "tx", "rx"; }; |