From: Sherry Sun <sherry.sun@nxp.com>
To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
Frank.Li@nxp.com, s.hauer@pengutronix.de, festevam@gmail.com
Cc: imx@lists.linux.dev, kernel@pengutronix.de,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH V2 1/2] arm64: dts: imx8mp-evk: Enable pull select bit for PCIe regulator GPIO (M.2 W_DISABLE1)
Date: Thu, 5 Feb 2026 15:34:53 +0800 [thread overview]
Message-ID: <20260205073454.3709673-2-sherry.sun@nxp.com> (raw)
In-Reply-To: <20260205073454.3709673-1-sherry.sun@nxp.com>
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 <sherry.sun@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
next prev parent reply other threads:[~2026-02-05 7:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-05 7:34 [PATCH V2 0/2] arm64: dts: imx8mp-evk: Add usdhc1 for SDIO WiFi support Sherry Sun
2026-02-05 7:34 ` Sherry Sun [this message]
2026-02-05 15:14 ` [PATCH V2 1/2] arm64: dts: imx8mp-evk: Enable pull select bit for PCIe regulator GPIO (M.2 W_DISABLE1) Frank Li
2026-02-05 7:34 ` [PATCH V2 2/2] arm64: dts: imx8mp-evk: Add usdhc1 for SDIO WiFi support Sherry Sun
2026-02-05 15:15 ` Frank Li
2026-03-02 19:28 ` Frank Li
2026-03-02 16:17 ` [PATCH V2 0/2] " Frank Li
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