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ASoC: dt-bindings: fsl-sai: Document RX/TX BCLK swap support

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Document support for setting the Bit Clock Swap bit in CR2 register
via new "fsl,sai-bit-clock-swap" DT property. This bit swaps the
bit clock used by the transmitter or receiver in asynchronous mode,
i.e. makes transmitter use RX_BCLK and TX_SYNC, and vice versa,
makes receiver use TX_BCLK and RX_SYNC.

Signed-off-by: Marek Vasut <marex@nabladev.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260404183547.46509-1-marex@nabladev.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Marek Vasut 2026-04-04 20:35:00 +02:00 committed by Mark Brown
parent 254f49634e
commit 9897a97766
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7
Documentation/devicetree/bindings/sound/fsl,sai.yaml
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@ -162,6 +162,13 @@ properties:
of transmitter.
type: boolean
fsl,sai-bit-clock-swap:
description:
Enable Bit Clock Swap, which swaps the bit clock used by the transmitter
or receiver in asynchronous mode, i.e. makes transmitter use RX_BCLK and
TX_SYNC, and vice versa, makes receiver use TX_BCLK and RX_SYNC.
type: boolean
fsl,shared-interrupt:
description: Interrupt is shared with other modules.
type: boolean