linux-kernel - [RFC PATCH v3 5/5] arm64: dts: qcom: ipq9574: Add WiFi nodes for RDP433

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Message-ID: <20241105180444.770951-6-quic_rajkbhag@quicinc.com>
Date: Tue, 5 Nov 2024 23:34:44 +0530
From: Raj Kumar Bhagat <quic_rajkbhag@...cinc.com>
To: <ath12k@...ts.infradead.org>
CC: <linux-wireless@...r.kernel.org>, Kalle Valo <kvalo@...nel.org>,
        "Rob
 Herring" <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        "Conor
 Dooley" <conor+dt@...nel.org>,
        Jeff Johnson <jjohnson@...nel.org>,
        "Bjorn
 Andersson" <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        Raj Kumar Bhagat <quic_rajkbhag@...cinc.com>
Subject: [RFC PATCH v3 5/5] arm64: dts: qcom: ipq9574: Add WiFi nodes for RDP433

The RDP433 is a Qualcomm Reference Design Platform based on the
IPQ9574. It has three QCN9274 WiFi devices connected to PCIe1, PCIe2,
and PCIe3. These devices are also connected among themselves via
WSI connection. This WSI connection is essential to exchange control
information among these devices

The WSI connection in RDP433 is represented below:

          +-------+        +-------+        +-------+
          | pcie1 |        | pcie2 |        | pcie3 |
          |       |        |       |        |       |
   +----->|  wsi  |------->|  wsi  |------->|  wsi  |-----+
   |      | grp 0 |        | grp 0 |        | grp 0 |     |
   |      +-------+        +-------+        +-------+     |
   +------------------------------------------------------+

Based on the above, the wifi node properties for QCN9274 at pcie2 are
(considering QCN9274 at pcie2 is WSI controller):

 - qcom,wsi-controller
 - ports:
    tx-port (port@0): endpoint at pcie3 RX port.
    rx-port (port@1): endpoint at pcie1 TX port.

Hence, add WiFi nodes with WSI properties for all three QCN9274
devices connected to RDP433.

Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@...cinc.com>
---
 arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 105 +++++++++++++++++++-
 1 file changed, 104 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
index 165ebbb59511..a490a0d51fbb 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
@@ -3,7 +3,7 @@
  * IPQ9574 RDP433 board device tree source
  *
  * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 /dts-v1/;
@@ -27,6 +27,40 @@ &pcie1 {
 	perst-gpios = <&tlmm 26 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 27 GPIO_ACTIVE_LOW>;
 	status = "okay";
+
+	pcie@0 {
+		device_type = "pci";
+		reg = <0x0 0x0 0x0 0x0 0x0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		wifi@0 {
+			compatible = "pci17cb,1109";
+			reg = <0x0 0x0 0x0 0x0 0x0>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					wifi1_wsi_tx: endpoint {
+						remote-endpoint = <&wifi2_wsi_rx>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					wifi1_wsi_rx: endpoint {
+						remote-endpoint = <&wifi3_wsi_tx>;
+					};
+				};
+			};
+		};
+	};
 };
 
 &pcie2_phy {
@@ -40,6 +74,42 @@ &pcie2 {
 	perst-gpios = <&tlmm 29 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 30 GPIO_ACTIVE_LOW>;
 	status = "okay";
+
+	pcie@0 {
+		device_type = "pci";
+		reg = <0x0 0x0 0x0 0x0 0x0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		wifi@0 {
+			compatible = "pci17cb,1109";
+			reg = <0x0 0x0 0x0 0x0 0x0>;
+
+			qcom,wsi-controller;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					wifi2_wsi_tx: endpoint {
+						remote-endpoint = <&wifi3_wsi_rx>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					wifi2_wsi_rx: endpoint {
+						remote-endpoint = <&wifi1_wsi_tx>;
+					};
+				};
+			};
+		};
+	};
 };
 
 &pcie3_phy {
@@ -53,6 +123,39 @@ &pcie3 {
 	perst-gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 33 GPIO_ACTIVE_LOW>;
 	status = "okay";
+
+	pcie@0 {
+		device_type = "pci";
+		reg = <0x0 0x0 0x0 0x0 0x0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		wifi@0 {
+			compatible = "pci17cb,1109";
+			reg = <0x0 0x0 0x0 0x0 0x0>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					wifi3_wsi_tx: endpoint {
+						remote-endpoint = <&wifi1_wsi_rx>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					wifi3_wsi_rx: endpoint {
+						remote-endpoint = <&wifi2_wsi_tx>;
+					};
+				};
+			};
+		};
+	};
 };
 
 &sdhc_1 {
-- 
2.34.1