Thread (3 messages) 3 messages, 2 authors, 20d ago
COLD20d REVIEWED: 1 (0M)

[PATCH v5 2/2] arm64: dts: imx943-evk: Add Root Port node and according properties

From: <hidden>
Date: 2026-06-30 02:29:55
Also in: imx, linux-devicetree, lkml
Subsystem: arm/freescale imx / mxc arm architecture, the rest · Maintainers: Frank Li, Sascha Hauer, Linus Torvalds

From: Richard Zhu <hongxing.zhu@nxp.com>

Since describing the PCIe PERST# property under Host Bridge node is now
deprecated, it is recommended to add it to the Root Port node, so
creating the Root Port node and add the reset-gpios property in Root
Port.
Move the regulator to Root Port nodes as well, because that the PCI
pwrctrl framework had been integrated into pci-imx6 driver.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Sherry Sun <redacted>
---
 arch/arm64/boot/dts/freescale/imx943-evk.dts | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx943-evk.dts b/arch/arm64/boot/dts/freescale/imx943-evk.dts
index 7cfd424689507..674410e541cba 100644
--- a/arch/arm64/boot/dts/freescale/imx943-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx943-evk.dts
@@ -1034,12 +1034,15 @@ &pcie0 {
 		 <&pcie_ref_clk>;
 	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux",
 		      "ref", "extref";
-	reset-gpio = <&pcal6416_i2c3_u46 3 GPIO_ACTIVE_LOW>;
-	vpcie3v3aux-supply = <&reg_m2_wlan>;
 	supports-clkreq;
 	status = "okay";
 };
 
+&pcie0_port0 {
+	reset-gpios = <&pcal6416_i2c3_u46 3 GPIO_ACTIVE_LOW>;
+	vpcie3v3aux-supply = <&reg_m2_wlan>;
+};
+
 &pcie0_ep {
 	pinctrl-0 = <&pinctrl_pcie0>;
 	pinctrl-names = "default";
@@ -1058,12 +1061,15 @@ &pcie1 {
 		 <&pcie_ref_clk>;
 	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux",
 		      "ref", "extref";
-	reset-gpio = <&pcal6416_i2c3_u46 1 GPIO_ACTIVE_LOW>;
-	vpcie3v3aux-supply = <&reg_slot_pwr>;
 	supports-clkreq;
 	status = "okay";
 };
 
+&pcie1_port0 {
+	reset-gpios = <&pcal6416_i2c3_u46 1 GPIO_ACTIVE_LOW>;
+	vpcie3v3aux-supply = <&reg_slot_pwr>;
+};
+
 &pcie1_ep {
 	pinctrl-0 = <&pinctrl_pcie1>;
 	pinctrl-names = "default";
-- 
2.34.1

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