[PATCH 1/3] arm64: dts: imx8mp-evk: Enable pull select bit for PCIe regulator GPIO (M.2 W_DISABLE1)
Sherry Sun
sherry.sun at nxp.com
Tue Feb 3 18:32:02 PST 2026
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.
Signed-off-by: Sherry Sun <sherry.sun at nxp.com>
---
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 3f9b3fab8ac3..a1269c7a6cc2 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -1069,7 +1069,7 @@ 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
>;
};
--
2.37.1
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