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@xxxxxxx> --- Cc: Conor Dooley <conor+dt@xxxxxxxxxx> Cc: Fabio Estevam <festevam@xxxxxxxxx> Cc: Jaroslav Kysela <perex@xxxxxxxx> Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx> Cc: Liam Girdwood <lgirdwood@xxxxxxxxx> Cc: Mark Brown <broonie@xxxxxxxxxx> Cc: Michael Turquette <mturquette@xxxxxxxxxxxx> Cc: Michael Walle <michael@xxxxxxxx> Cc: Nicolin Chen <nicoleotsuka@xxxxxxxxx> Cc: Rob Herring <robh@xxxxxxxxxx> Cc: Shengjiu Wang <shengjiu.wang@xxxxxxxxx> Cc: Stephen Boyd <sboyd@xxxxxxxxxx> Cc: Takashi Iwai <tiwai@xxxxxxxx> Cc: Xiubo Li <Xiubo.Lee@xxxxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx Cc: linux-clk@xxxxxxxxxxxxxxx Cc: linux-sound@xxxxxxxxxxxxxxx --- Documentation/devicetree/bindings/sound/fsl,sai.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/fsl,sai.yaml b/Documentation/devicetree/bindings/sound/fsl,sai.yaml index a5d9c246cc476..7a58df1e3f87c 100644 --- a/Documentation/devicetree/bindings/sound/fsl,sai.yaml +++ b/Documentation/devicetree/bindings/sound/fsl,sai.yaml @@ -132,6 +132,13 @@ 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 -- 2.45.2