[PATCH V5 09/12] arm64: dts: imx8mp: Add Root Port node and PERST property

[Sherry Sun <sherry.sun@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.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts |  5 +++++
 arch/arm64/boot/dts/freescale/imx8mp.dtsi    | 11 +++++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index 50850cb6d287..dfcdcc739ec6 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -769,6 +769,7 @@ &pcie_phy {
 &pcie0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pcie0>;
+	/* This property is deprecated, use reset-gpios from the Root Port node. */
 	reset-gpio = <&gpio2 7 GPIO_ACTIVE_LOW>;
 	vpcie-supply = <&reg_pcie0>;
 	vpcie3v3aux-supply = <&reg_pcie0>;
@@ -782,6 +783,10 @@ &pcie0_ep {
 	status = "disabled";
 };
 
+&pcie0_port0 {
+	reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
+};
+
 &pwm1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pwm1>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 9b2b3a9bf9e8..f66667735a02 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -2266,6 +2266,17 @@ pcie0: pcie: pcie@33800000 {
 			phys = <&pcie_phy>;
 			phy-names = "pcie-phy";
 			status = "disabled";
+
+			pcie0_port0: pcie@0 {
+				compatible = "pciclass,0604";
+				device_type = "pci";
+				reg = <0x0 0x0 0x0 0x0 0x0>;
+				bus-range = <0x01 0xff>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				ranges;
+			};
 		};
 
 		pcie0_ep: pcie_ep: pcie-ep@33800000 {
-- 
2.37.1