[PATCH v4 11/11] arm64: dts: qcom: monaco-arduino-monza: Add QCA2066 M.2 WiFi/BT support

[Loic Poulain]

Add support for the QCA2066 (QCNFA765) WiFi/Bluetooth module on the
Arduino VENTUNO Q board. The module is interfaced via LGA and is
compatible with the M.2 Key E.

Add wireless-lga-connector node using pcie-m2-e-connector binding,
connecting PCIe port 0 to the WiFi interface and UART10 port 3 to
the Bluetooth interface.

Add pcie@1,0 downstream port node with pciclass,0604 compatible so
the pci-pwrctrl driver can acquire the power sequencer and enable
the M.2 slot before PCIe enumeration.

Add nfa725b_default_state pinctrl for the W_DISABLE1/2 GPIOs
(gpio56/gpio55) used by the power sequencer.

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts | 64 +++++++++++++++++++++--
 1 file changed, 60 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts b/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts
index f67a554adf956696aeac2348e478dbd0b74f0e62..5e41e637c1c705ce0f3847aa71b229261a1e3664 100644
--- a/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts
@@ -155,6 +155,40 @@ vreg_nvme: regulator-3p3-m2 {
 		enable-active-high;
 		startup-delay-us = <20000>;
 	};
+
+	wireless-lga-connector {
+		compatible = "qcom,pcie-m2-1418-lga-connector",
+			     "pcie-m2-e-connector";
+		vpcie3v3-supply = <&vdc_3v3>;
+		vpcie1v8-supply = <&vdc_1v8>;
+		w-disable1-gpios = <&tlmm 56 GPIO_ACTIVE_LOW>;
+		w-disable2-gpios = <&tlmm 55 GPIO_ACTIVE_LOW>;
+		pinctrl-0 = <&nfa725b_default_state>;
+		pinctrl-names = "default";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/* WiFi/PCIe */
+			port@0 {
+				reg = <0>;
+
+				lga_pcie_ep: endpoint {
+					remote-endpoint = <&pcie_ep>;
+				};
+			};
+
+			/* Bluetooth/UART */
+			port@3 {
+				reg = <3>;
+
+				lga_uart_ep: endpoint {
+					remote-endpoint = <&uart10_ep>;
+				};
+			};
+		};
+	};
 };
 
 &cci1 {
@@ -409,6 +443,22 @@ pci@0,0 {
 		ranges;
 		reg = <0x010000 0x00 0x00 0x00 0x00>;
 
+		pcie@1,0 {
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			compatible = "pciclass,0604";
+			bus-range = <0x00 0xff>;
+			ranges;
+			reg = <0x020800 0x00 0x00 0x00 0x00>;
+
+			port {
+				pcie_ep: endpoint {
+					remote-endpoint = <&lga_pcie_ep>;
+				};
+			};
+		};
+
 		pci@2,0 {
 			#address-cells = <3>;
 			#size-cells = <2>;
@@ -501,6 +551,12 @@ max98091_default: max98091-default-state {
 		bias-pull-up;
 	};
 
+	nfa725b_default_state: nfa725b-default-state {
+		pins = "gpio55", "gpio56";
+		function = "gpio";
+		bias-disable;
+	};
+
 	pcie1_default_state: pcie1-default-state {
 		wake-pins {
 			pins = "gpio21";
@@ -544,10 +600,10 @@ &uart7 {
 &uart10 {
 	status = "okay";
 
-	bluetooth: bluetooth {
-		compatible = "qcom,qca2066-bt";
-		enable-gpios = <&tlmm 55 GPIO_ACTIVE_HIGH>;
-		clocks = <&sleep_clk>;
+	port {
+		uart10_ep: endpoint {
+			remote-endpoint = <&lga_uart_ep>;
+		};
 	};
 };
 

-- 
2.34.1