arm64: dts: qcom: sm8450-hdk: model the PMU of the on-board wcn6855

Add nodes for the WCN6855 PMU, the WLAN and BT modules and relevant
regulators and pin functions to fully describe how the wifi is actually
wired on this platform.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20241018-sc8280xp-pwrseq-v6-6-8da8310d9564@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

2 files changed, 158 insertions, 1 deletions

diff --git a/arch/arm64/boot/dts/qcom/sm8450-hdk.dts b/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
index 67443822653d..2ff40a120aad 100644
--- a/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
@@ -26,6 +26,7 @@
 
 	aliases {
 		serial0 = &uart7;
+		serial1 = &uart20;
 	};
 
 	wcd938x: audio-codec {
@@ -247,6 +248,71 @@
 		};
 	};
 
+	wcn6855-pmu {
+		compatible = "qcom,wcn6855-pmu";
+
+		pinctrl-0 = <&bt_en>, <&wlan_en>, <&xo_clk_default>;
+		pinctrl-names = "default";
+
+		wlan-enable-gpios = <&tlmm 80 GPIO_ACTIVE_HIGH>;
+		bt-enable-gpios = <&tlmm 81 GPIO_ACTIVE_HIGH>;
+		swctrl-gpios = <&tlmm 82 GPIO_ACTIVE_HIGH>;
+		xo-clk-gpios = <&tlmm 204 GPIO_ACTIVE_HIGH>;
+
+		vddio-supply = <&vreg_s10b_1p8>;
+		vddaon-supply = <&vreg_s11b_0p95>;
+		vddpmu-supply = <&vreg_s12b_1p25>;
+		vddpmumx-supply = <&vreg_s2e_0p85>;
+		vddpmucx-supply = <&vreg_s11b_0p95>;
+		vddrfa0p95-supply = <&vreg_s11b_0p95>;
+		vddrfa1p3-supply = <&vreg_s12b_1p25>;
+		vddrfa1p9-supply = <&vreg_s1c_1p86>;
+		vddpcie1p3-supply = <&vreg_s12b_1p25>;
+		vddpcie1p9-supply = <&vreg_s1c_1p86>;
+
+		regulators {
+			vreg_pmu_rfa_cmn_0p8: ldo0 {
+				regulator-name = "vreg_pmu_rfa_cmn_0p8";
+			};
+
+			vreg_pmu_aon_0p8: ldo1 {
+				regulator-name = "vreg_pmu_aon_0p8";
+			};
+
+			vreg_pmu_wlcx_0p8: ldo2 {
+				regulator-name = "vreg_pmu_wlcx_0p8";
+			};
+
+			vreg_pmu_wlmx_0p8: ldo3 {
+				regulator-name = "vreg_pmu_wlmx_0p8";
+			};
+
+			vreg_pmu_btcmx_0p8: ldo4 {
+				regulator-name = "vreg_pmu_btcmx_0p8";
+			};
+
+			vreg_pmu_pcie_1p8: ldo5 {
+				regulator-name = "vreg_pmu_pcie_1p8";
+			};
+
+			vreg_pmu_pcie_0p9: ldo6 {
+				regulator-name = "vreg_pmu_pcie_0p9";
+			};
+
+			vreg_pmu_rfa_0p8: ldo7 {
+				regulator-name = "vreg_pmu_rfa_0p8";
+			};
+
+			vreg_pmu_rfa_1p2: ldo8 {
+				regulator-name = "vreg_pmu_rfa_1p2";
+			};
+
+			vreg_pmu_rfa_1p7: ldo9 {
+				regulator-name = "vreg_pmu_rfa_1p7";
+			};
+		};
+	};
+
 	vph_pwr: vph-pwr-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "vph_pwr";
@@ -685,6 +751,23 @@
 	vdda-pll-supply = <&vreg_l6b_1p2>;
 };
 
+&pcieport0 {
+	wifi@0 {
+		compatible = "pci17cb,1103";
+		reg = <0x10000 0x0 0x0 0x0 0x0>;
+
+		vddrfacmn-supply = <&vreg_pmu_rfa_cmn_0p8>;
+		vddaon-supply = <&vreg_pmu_aon_0p8>;
+		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+		vddwlmx-supply = <&vreg_pmu_wlmx_0p8>;
+		vddpcie1p8-supply = <&vreg_pmu_pcie_1p8>;
+		vddpcie0p9-supply = <&vreg_pmu_pcie_0p9>;
+		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+		vddrfa1p8-supply = <&vreg_pmu_rfa_1p7>;
+	};
+};
+
 &pcie1 {
 	status = "okay";
 };
@@ -892,6 +975,10 @@
 	status = "okay";
 };
 
+&qupv3_id_2 {
+	status = "okay";
+};
+
 &sdhc_2 {
 	cd-gpios = <&tlmm 92 GPIO_ACTIVE_HIGH>;
 	pinctrl-names = "default", "sleep";
@@ -1069,6 +1156,26 @@
 	status = "okay";
 };
 
+&uart20 {
+	pinctrl-0 = <&uart20_default>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn6855-bt";
+
+		vddrfacmn-supply = <&vreg_pmu_rfa_cmn_0p8>;
+		vddaon-supply = <&vreg_pmu_aon_0p8>;
+		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+		vddwlmx-supply = <&vreg_pmu_wlmx_0p8>;
+		vddbtcmx-supply = <&vreg_pmu_btcmx_0p8>;
+		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+		vddrfa1p8-supply = <&vreg_pmu_rfa_1p7>;
+	};
+};
+
 &ufs_mem_hc {
 	status = "okay";
 
@@ -1130,6 +1237,14 @@
 };
 
 &tlmm {
+	bt_en: bt-en-state {
+		pins = "gpio81";
+		function = "gpio";
+		drive-strength = <16>;
+		output-low;
+		bias-pull-down;
+	};
+
 	spkr_1_sd_n_active: spkr-1-sd-n-active-state {
 		pins = "gpio1";
 		function = "gpio";
@@ -1153,4 +1268,46 @@
 		bias-disable;
 		output-low;
 	};
+
+	wlan_en: wlan-en-state {
+		pins = "gpio80";
+		function = "gpio";
+		drive-strength = <16>;
+		output-low;
+		bias-pull-down;
+	};
+
+	uart20_default: uart20-default-state {
+		cts-pins {
+			pins = "gpio76";
+			function = "qup20";
+			bias-disable;
+		};
+
+		rts-pins {
+			pins = "gpio77";
+			function = "qup20";
+			bias-disable;
+		};
+
+		rx-pins {
+			pins = "gpio78";
+			function = "qup20";
+			bias-disable;
+		};
+
+		tx-pins {
+			pins = "gpio79";
+			function = "qup20";
+			bias-disable;
+		};
+	};
+
+	xo_clk_default: xo-clk-state {
+		pins = "gpio204";
+		function = "gpio";
+		drive-strength = <16>;
+		output-low;
+		bias-pull-down;
+	};
 };
diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 65f57b99a6c6..de234a970e35 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -1882,7 +1882,7 @@
 				};
 			};
 
-			pcie@0 {
+			pcieport0: pcie@0 {
 				device_type = "pci";
 				reg = <0x0 0x0 0x0 0x0 0x0>;
 				bus-range = <0x01 0xff>;