arm64: dts: qcom: sdm845-mtp: enable PCIe support

Enable two PCIe hosts support on Qualcomm SDM845 MTP board.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230826221915.846937-6-dmitry.baryshkov@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sdm845-mtp.dts

@@ -533,6 +533,38 @@ &mss_pil {
 	firmware-name = "qcom/sdm845/mba.mbn", "qcom/sdm845/modem.mbn";
 };
 
+&pcie0 {
+	perst-gpios = <&tlmm 35 GPIO_ACTIVE_LOW>;
+
+	pinctrl-0 = <&pcie0_default_state>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&pcie0_phy {
+	vdda-phy-supply = <&vreg_l1a_0p875>;
+	vdda-pll-supply = <&vreg_l26a_1p2>;
+
+	status = "okay";
+};
+
+&pcie1 {
+	perst-gpios = <&tlmm 102 GPIO_ACTIVE_LOW>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_default_state>;
+
+	status = "okay";
+};
+
+&pcie1_phy {
+	status = "okay";
+
+	vdda-phy-supply = <&vreg_l1a_0p875>;
+	vdda-pll-supply = <&vreg_l26a_1p2>;
+};
+
 &pm8998_adc {
 	channel@4c {
 		reg = <ADC5_XO_THERM_100K_PU>;
@@ -630,6 +662,52 @@ &sdhc_2 {
 	cd-gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
 };
 
+&tlmm {
+	pcie0_default_state: pcie0-default-state {
+		clkreq-pins {
+			pins = "gpio36";
+			function = "pci_e0";
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio35";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-down;
+		};
+
+		wake-n-pins {
+			pins = "gpio37";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
+	pcie1_default_state: pcie1-default-state {
+		clkreq-pins {
+			pins = "gpio103";
+			function = "pci_e1";
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio102";
+			function = "gpio";
+			drive-strength = <16>;
+			bias-pull-down;
+		};
+
+		wake-n-pins {
+			pins = "gpio104";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+};
+
 &uart9 {
 	status = "okay";
 };