From d1e7eab6033f9885a02c4b4e8f09e34d8e9d21ab Mon Sep 17 00:00:00 2001 From: Sherry Sun Date: Thu, 5 Feb 2026 15:34:53 +0800 Subject: [PATCH] arm64: dts: imx8mp-evk: Enable pull select bit for PCIe regulator GPIO (M.2 W_DISABLE1) The current pin configuration for MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 sets the weak pull-up but does not enable the pull select field. Bit 8 in the IOMUX register must be set in order for the weak pull-up to actually take effect. Update the pinctrl setting from 0x40 to 0x140 to enable both the pull select and the weak pull-up, ensuring the line behaves as expected. Fixes: d50650500064 ("arm64: dts: imx8mp-evk: Add PCIe support") Signed-off-by: Sherry Sun Reviewed-by: Frank Li Signed-off-by: Frank Li --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index 33e7094d0e10..70897289680c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -1068,7 +1068,7 @@ MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07 0x40 pinctrl_pcie0_reg: pcie0reggrp { fsl,pins = < - MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x40 + MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x140 >; };