linux-kernel - [PATCH V4 5/6] arm64: dts: qcom: ipq9574: Enable PCIe PHYs and controllers

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Message-ID: <20230519090219.15925-6-quic_devipriy@quicinc.com>
Date:   Fri, 19 May 2023 14:32:18 +0530
From:   Devi Priya <quic_devipriy@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <lpieralisi@...nel.org>,
        <kw@...ux.com>, <robh@...nel.org>, <bhelgaas@...gle.com>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <mturquette@...libre.com>, <sboyd@...nel.org>, <mani@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-clk@...r.kernel.org>
CC:     <quic_srichara@...cinc.com>, <quic_sjaganat@...cinc.com>,
        <quic_kathirav@...cinc.com>, <quic_arajkuma@...cinc.com>,
        <quic_anusha@...cinc.com>, <quic_ipkumar@...cinc.com>
Subject: [PATCH V4 5/6] arm64: dts: qcom: ipq9574: Enable PCIe PHYs and controllers

Enable the PCIe controller and PHY nodes corresponding to
RDP 433.

Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
---
 Changes in V4:
	- Added pin definitions for wake and clkreq gpios

 arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 113 ++++++++++++++++++++
 1 file changed, 113 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
index 1a35fbc42f8c..6042084200b5 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
@@ -8,6 +8,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
 #include "ipq9574.dtsi"
 
 / {
@@ -62,6 +63,45 @@
 	};
 };
 
+&pcie1_phy {
+	status = "okay";
+};
+
+&pcie1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_default>;
+
+	perst-gpios = <&tlmm 26 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 27 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&pcie2_phy {
+	status = "okay";
+};
+
+&pcie2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie2_default>;
+
+	perst-gpios = <&tlmm 29 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 30 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&pcie3_phy {
+	status = "okay";
+};
+
+&pcie3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie3_default>;
+
+	perst-gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 33 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
 &sdhc_1 {
 	pinctrl-0 = <&sdc_default_state>;
 	pinctrl-names = "default";
@@ -79,6 +119,79 @@
 };
 
 &tlmm {
+
+	pcie1_default: pcie1-default-state {
+		clkreq-n-pins {
+			pins = "gpio25";
+			function = "pcie1_clk";
+			drive-strength = <6>;
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio26";
+			function = "gpio";
+			drive-strength = <8>;
+			bias-pull-down;
+			output-low;
+		};
+
+		wake-n-pins {
+			pins = "gpio27";
+			function = "pcie1_wake";
+			drive-strength = <6>;
+			bias-pull-up;
+		};
+	};
+
+	pcie2_default: pcie2-default-state {
+		clkreq-n-pins {
+			pins = "gpio28";
+			function = "pcie2_clk";
+			drive-strength = <6>;
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio29";
+			function = "gpio";
+			drive-strength = <8>;
+			bias-pull-down;
+			output-low;
+		};
+
+		wake-n-pins {
+			pins = "gpio30";
+			function = "pcie2_wake";
+			drive-strength = <6>;
+			bias-pull-up;
+		};
+	};
+
+	pcie3_default: pcie3-default-state {
+		clkreq-n-pins {
+			pins = "gpio31";
+			function = "pcie3_clk";
+			drive-strength = <6>;
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio32";
+			function = "gpio";
+			drive-strength = <8>;
+			bias-pull-up;
+			output-low;
+		};
+
+		wake-n-pins {
+			pins = "gpio33";
+			function = "pcie3_wake";
+			drive-strength = <6>;
+			bias-pull-up;
+		};
+	};
+
 	sdc_default_state: sdc-default-state {
 		clk-pins {
 			pins = "gpio5";
-- 
2.17.1