From 418b4ee165fb225ebe76020d1fdd9bd782292263 Mon Sep 17 00:00:00 2001
From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Date: Thu, 28 Jan 2021 02:42:21 +0300
Subject: [PATCH] arm64: dts: qcom: rb5: Enable PCIe ports and PHY

RB5 has 3 PCIe ports exposed to connect PCIe client devices. PCIe0 is
connected to QCA6391 chipset and others are available on the HS3
expansion connector. Hence, enable all of them.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210127234221.947306-3-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 117 +++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index 58b94ce..26a4a5a 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -655,6 +655,48 @@
 	};
 };
 
+&pcie0 {
+	status = "okay";
+	perst-gpio = <&tlmm 79 GPIO_ACTIVE_LOW>;
+	wake-gpio = <&tlmm 81 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie0_default_state>;
+};
+
+&pcie0_phy {
+	status = "okay";
+	vdda-phy-supply = <&vreg_l5a_0p88>;
+	vdda-pll-supply = <&vreg_l9a_1p2>;
+};
+
+&pcie1 {
+	status = "okay";
+	perst-gpio = <&tlmm 82 GPIO_ACTIVE_LOW>;
+	wake-gpio = <&tlmm 84 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_default_state>;
+};
+
+&pcie1_phy {
+	status = "okay";
+	vdda-phy-supply = <&vreg_l5a_0p88>;
+	vdda-pll-supply = <&vreg_l9a_1p2>;
+};
+
+&pcie2 {
+	status = "okay";
+	perst-gpio = <&tlmm 85 GPIO_ACTIVE_LOW>;
+	wake-gpio = <&tlmm 87 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie2_default_state>;
+};
+
+&pcie2_phy {
+	status = "okay";
+	vdda-phy-supply = <&vreg_l5a_0p88>;
+	vdda-pll-supply = <&vreg_l9a_1p2>;
+};
+
 &pm8150_gpios {
 	gpio-reserved-ranges = <1 1>, <3 2>, <7 1>;
 	gpio-line-names =
@@ -1125,6 +1167,81 @@
 		bias-disable;
 	};
 
+	pcie0_default_state: pcie0-default {
+		clkreq {
+			pins = "gpio80";
+			function = "pci_e0";
+			bias-pull-up;
+		};
+
+		reset-n {
+			pins = "gpio79";
+			function = "gpio";
+
+			drive-strength = <2>;
+			output-low;
+			bias-pull-down;
+		};
+
+		wake-n {
+			pins = "gpio81";
+			function = "gpio";
+
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
+	pcie1_default_state: pcie1-default {
+		clkreq {
+			pins = "gpio83";
+			function = "pci_e1";
+			bias-pull-up;
+		};
+
+		reset-n {
+			pins = "gpio82";
+			function = "gpio";
+
+			drive-strength = <2>;
+			output-low;
+			bias-pull-down;
+		};
+
+		wake-n {
+			pins = "gpio84";
+			function = "gpio";
+
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
+	pcie2_default_state: pcie2-default {
+		clkreq {
+			pins = "gpio86";
+			function = "pci_e2";
+			bias-pull-up;
+		};
+
+		reset-n {
+			pins = "gpio85";
+			function = "gpio";
+
+			drive-strength = <2>;
+			output-low;
+			bias-pull-down;
+		};
+
+		wake-n {
+			pins = "gpio87";
+			function = "gpio";
+
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
 	sdc2_default_state: sdc2-default {
 		clk {
 			pins = "sdc2_clk";
-- 
2.7.4