From: Stefano Radaelli <stefano.radaelli21@gmail.com>
To: Frank Li <Frank.Li@nxp.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org
Cc: pierluigi.p@variscite.com,
Stefano Radaelli <stefano.r@variscite.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Francesco Ferraro <francesco.f@variscite.com>
Subject: [PATCH v1 1/3] arm64: dts: imx8mm-var-dart: configure SAI3 synchronous RX mode
Date: Thu, 17 Sep 2026 17:08:43 +0200 [thread overview]
Message-ID: <f155648a50185df5d273f697f10fcd7efb154364.1789657399.git.stefano.r@variscite.com> (raw)
In-Reply-To: <cover.1789657399.git.stefano.r@variscite.com>
From: Stefano Radaelli <stefano.r@variscite.com>
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@variscite.com>
Signed-off-by: Francesco Ferraro <francesco.f@variscite.com>
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
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
next prev parent reply other threads:[~2026-09-17 15:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 15:08 [PATCH v1 0/3] arm64: dts: imx8mm-var-dart: update SoM support Stefano Radaelli
2026-09-17 15:08 ` Stefano Radaelli [this message]
2026-09-17 15:08 ` [PATCH v1 2/3] arm64: dts: imx8mm-var-dart: add TPM support Stefano Radaelli
2026-09-17 15:21 ` sashiko-bot
2026-09-17 15:08 ` [PATCH v1 3/3] arm64: dts: imx8mm-var-dart: increase PHY reset deassert delay Stefano Radaelli
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