From b64620022d96743a8f55e67a48a7ab48a6782691 Mon Sep 17 00:00:00 2001 From: Richard Zhu Date: Fri, 24 Oct 2025 15:31:50 +0800 Subject: [PATCH] arm64: dts: imx8qxp-mek: Add vpcie3v3aux regulator for PCIe M.2 connector MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and Grounds. PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage source, 3.3 V, is expected to be available during the system’s stand-by/suspend state to support wake event processing on the communications card. Add vpcie3v3aux regulator to let this 3.3 V power source always on for PCIe M.2 Key E connector on i.MX8QXP MEK board. Signed-off-by: Richard Zhu Reviewed-by: Frank Li Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts index 7c773782393d2..e092e136854ba 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts +++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts @@ -640,6 +640,7 @@ pinctrl-names = "default"; reset-gpios = <&lsio_gpio4 0 GPIO_ACTIVE_LOW>; vpcie-supply = <®_pcieb>; + vpcie3v3aux-supply = <®_pcieb>; supports-clkreq; status = "okay"; }; -- 2.47.3