[PATCH v1 1/3] arm64: dts: imx8mm-var-dart: configure SAI3 synchronous RX mode
From: Stefano Radaelli
Date: Thu Sep 17 2026 - 13:00:06 EST
From: Stefano Radaelli <stefano.r@xxxxxxxxxxxxx>
Configure SAI3 to operate in synchronous RX mode, so that the trasmit
path uses the receive bit clock and frame sync signals.
Remove the TX_SYNC and TX_BCLK pinmux entries, as these signals are not
used in this configuration.
Co-developed-by: Francesco Ferraro <francesco.f@xxxxxxxxxxxxx>
Signed-off-by: Francesco Ferraro <francesco.f@xxxxxxxxxxxxx>
Signed-off-by: Stefano Radaelli <stefano.r@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mm-var-dart.dtsi | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-dart.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-dart.dtsi
index 2324063f8fd9..c7a9eb23e5e8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-dart.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-dart.dtsi
@@ -305,6 +305,7 @@ &sai3 {
assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
assigned-clock-rates = <1536000>;
fsl,sai-mclk-direction-output;
+ fsl,sai-synchronous-rx;
status = "okay";
};
@@ -446,8 +447,6 @@ pinctrl_sai3: sai3grp {
MX8MM_IOMUXC_SAI3_RXFS_SAI3_RX_SYNC 0xd6
MX8MM_IOMUXC_SAI3_RXC_SAI3_RX_BCLK 0xd6
MX8MM_IOMUXC_SAI3_RXD_SAI3_RX_DATA0 0xd6
- MX8MM_IOMUXC_SAI3_TXFS_SAI3_TX_SYNC 0xd6
- MX8MM_IOMUXC_SAI3_TXC_SAI3_TX_BCLK 0xd6
MX8MM_IOMUXC_SAI3_TXD_SAI3_TX_DATA0 0xd6
MX8MM_IOMUXC_SAI3_MCLK_SAI3_MCLK 0xd6
>;
--
2.47.3