[PATCH V5 4/7] arm64: dts: imx8mp-evk: Add power supply properties to Root Port node

Sherry Sun (OSS) sherry.sun at oss.nxp.com
Wed Jul 1 03:52:31 PDT 2026


From: Sherry Sun <sherry.sun at nxp.com>

Add the power supply properties to the Root Port child nodes to support
the new PCI pwrctrl framework.

Legacy power supply properties are retained for backward compatibility
with existing kernels. New device trees should specify power supplies at
the Root Port level to utilize the pwrctrl framework.

Signed-off-by: Sherry Sun <sherry.sun at nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index a7f3acdc36d1..ca09a929ba0a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -772,6 +772,7 @@ &pcie0 {
 	pinctrl-0 = <&pinctrl_pcie0>;
 	/* This property is deprecated, use reset-gpios from the Root Port node. */
 	reset-gpio = <&gpio2 7 GPIO_ACTIVE_LOW>;
+	/* This property is deprecated, use power supply from the Root Port node. */
 	vpcie-supply = <&reg_pcie0>;
 	vpcie3v3aux-supply = <&reg_pcie0>;
 	supports-clkreq;
@@ -786,6 +787,8 @@ &pcie0_ep {
 
 &pcie0_port0 {
 	reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
+	vpcie3v3-supply = <&reg_pcie0>;
+	vpcie3v3aux-supply = <&reg_pcie0>;
 };
 
 &pwm1 {
-- 
2.50.1




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