linux-kernel - [PATCH v2] arm64: dts: qcom: sc7280: Add bluetooth node on SC7280

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Date:   Tue, 12 Oct 2021 18:31:38 +0530
From:   Balakrishna Godavarthi <bgodavar@...eaurora.org>
To:     marcel@...tmann.org, johan.hedberg@...il.com,
        bjorn.andersson@...aro.org
Cc:     mka@...omium.org, linux-kernel@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, hemantg@...eaurora.org,
        linux-arm-msm@...r.kernel.org, pharish@...eaurora.org,
        rjliao@...eaurora.org, hbandi@...eaurora.org,
        saluvala@...eaurora.org, abhishekpandit@...omium.org,
        Balakrishna Godavarthi <bgodavar@...eaurora.org>
Subject: [PATCH v2] arm64: dts: qcom: sc7280: Add bluetooth node on SC7280

Add bluetooth SoC WCN6750 node for SC7280 IDP boards.

Signed-off-by: Balakrishna Godavarthi <bgodavar@...eaurora.org>
---
v2: 
  * merged two patches into one
  * Removed unused comments
  * Removed pinmux & pin conf.
  * Addressed reviewers comments 

v1: initial patch
---
 arch/arm64/boot/dts/qcom/sc7280-idp.dts  |  6 ++++++
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 25 +++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/sc7280-idp2.dts |  6 ++++++
 3 files changed, 37 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
index 64fc22a..d8b9262 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
@@ -16,7 +16,9 @@
 	compatible = "qcom,sc7280-idp", "google,senor", "qcom,sc7280";
 
 	aliases {
+		bluetooth0 = &bluetooth;
 		serial0 = &uart5;
+		serial1 = &uart7;
 	};
 
 	chosen {
@@ -68,3 +70,7 @@
 		qcom,pre-scaling = <1 1>;
 	};
 };
+
+&bluetooth {
+	vddio-supply = <&vreg_l19b_1p8>;
+};
diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 272d5ca..09adc802 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -393,6 +393,23 @@
 				<&tlmm 31 IRQ_TYPE_EDGE_FALLING>;
 	pinctrl-names = "default", "sleep";
 	pinctrl-1 = <&qup_uart7_sleep_cts>, <&qup_uart7_sleep_rts>, <&qup_uart7_sleep_tx>, <&qup_uart7_sleep_rx>;
+
+	bluetooth: wcn6750-bt {
+		compatible = "qcom,wcn6750-bt";
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_en_default>;
+		enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>;
+		swctrl-gpios = <&tlmm 86 GPIO_ACTIVE_HIGH>;
+		vddaon-supply = <&vreg_s7b_0p9>;
+		vddbtcxmx-supply = <&vreg_s7b_0p9>;
+		vddrfacmn-supply = <&vreg_s7b_0p9>;
+		vddrfa0p8-supply = <&vreg_s7b_0p9>;
+		vddrfa1p7-supply = <&vreg_s1b_1p8>;
+		vddrfa1p2-supply = <&vreg_s8b_1p2>;
+		vddrfa2p2-supply = <&vreg_s1c_2p2>;
+		vddasd-supply = <&vreg_l11c_2p8>;
+		max-speed = <3200000>;
+	};
 };
 
 /* PINCTRL - additions to nodes defined in sc7280.dtsi */
@@ -504,6 +521,14 @@
 		 */
 		bias-pull-up;
 	};
+
+	bt_en_default: bt_en_default {
+		pins = "gpio85";
+		function = "gpio";
+		drive-strength = <2>;
+		output-low;
+		bias-pull-down;
+	};
 };
 
 &sdc1_on {
diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp2.dts b/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
index 1fc2add..e60fa88 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
@@ -14,10 +14,16 @@
 	compatible = "qcom,sc7280-idp2", "google,piglin", "qcom,sc7280";
 
 	aliases {
+		bluetooth0 = &bluetooth;
 		serial0 = &uart5;
+		serial1 = &uart7;
 	};
 
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
 };
+
+&bluetooth {
+	vddio-supply = <&vreg_l18b_1p8>;
+};
-- 
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