linux-kernel - [PATCH v2 5/8] arm64: dts: qcom: qcs8300: enable pcie0 for qcs8300 platform

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Message-Id: <20241128081056.1361739-6-quic_ziyuzhan@quicinc.com>
Date: Thu, 28 Nov 2024 16:10:53 +0800
From: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
To: vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org,
        manivannan.sadhasivam@...aro.org, bhelgaas@...gle.com, kw@...ux.com,
        lpieralisi@...nel.org, quic_qianyu@...cinc.com, conor+dt@...nel.org,
        neil.armstrong@...aro.org, andersson@...nel.org,
        konradybcio@...nel.org
Cc: quic_tsoni@...cinc.com, quic_shashim@...cinc.com,
        quic_kaushalk@...cinc.com, quic_tdas@...cinc.com,
        quic_tingweiz@...cinc.com, quic_aiquny@...cinc.com, kernel@...cinc.com,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
        Ziyue Zhang <quic_ziyuzhan@...cinc.com>
Subject: [PATCH v2 5/8] arm64: dts: qcom: qcs8300: enable pcie0 for qcs8300 platform

Add configurations in devicetree for PCIe0, board related gpios,
PMIC regulators, etc.

Signed-off-by: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 44 ++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
index 7eed19a694c3..7f97f771c44a 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
@@ -213,7 +213,7 @@ vreg_l9c: ldo9 {
 &gcc {
 	clocks = <&rpmhcc RPMH_CXO_CLK>,
 		 <&sleep_clk>,
-		 <0>,
+		 <&pcie0_phy>,
 		 <0>,
 		 <0>,
 		 <0>,
@@ -223,6 +223,23 @@ &gcc {
 		 <0>;
 };
 
+&pcie0 {
+	perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
+
+	pinctrl-0 = <&pcie0_default_state>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&pcie0_phy {
+	vdda-phy-supply = <&vreg_l6a>;
+	vdda-pll-supply = <&vreg_l5a>;
+
+	status = "okay";
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
@@ -247,6 +264,31 @@ &rpmhcc {
 	clock-names = "xo";
 };
 
+&tlmm {
+	pcie0_default_state: pcie0-default-state {
+		clkreq-pins {
+			pins = "gpio1";
+			function = "pcie0_clkreq";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+
+		perst-pins {
+			pins = "gpio2";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-down;
+		};
+
+		wake-pins {
+			pins = "gpio0";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+};
+
 &uart7 {
 	status = "okay";
 };
-- 
2.34.1