From: Richard Zhu Date: Fri, 24 Oct 2025 07:31:48 +0000 (+0800) Subject: arm64: dts: imx8mq-evk: Add vpcie3v3aux regulator for PCIe M.2 connector X-Git-Tag: v6.19-rc1~100^2~20^2~71 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6fa16090efbca3a9ae74847e720f3c84ea18ce3d;p=thirdparty%2Fkernel%2Flinux.git arm64: dts: imx8mq-evk: Add vpcie3v3aux regulator for PCIe M.2 connector 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.MX8MQ EVK board. Signed-off-by: Richard Zhu Reviewed-by: Frank Li Signed-off-by: Shawn Guo --- diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts index 852992b915a39..d48f901487d49 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -398,6 +398,7 @@ <&clk IMX8MQ_CLK_PCIE2_PHY>, <&clk IMX8MQ_CLK_PCIE2_AUX>; vpcie-supply = <®_pcie1>; + vpcie3v3aux-supply = <®_pcie1>; vph-supply = <&vgen5_reg>; supports-clkreq; status = "okay";