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From:   Balakrishna Godavarthi <bgodavar@codeaurora.org>
To:     marcel@holtmann.org, johan.hedberg@gmail.com,
        bjorn.andersson@linaro.org
Cc:     mka@chromium.org, linux-kernel@vger.kernel.org,
        linux-bluetooth@vger.kernel.org, hemantg@codeaurora.org,
        linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org,
        rjliao@codeaurora.org, hbandi@codeaurora.org,
        abhishekpandit@chromium.org, mcchou@chromium.org,
        saluvala@codeaurora.org,
        Balakrishna Godavarthi <bgodavar@codeauroa.org>
Subject: [PATCH v3] arm64: dts: qcom: sc7280: Add bluetooth node on SC7280
Date:   Tue,  7 Dec 2021 11:43:43 +0530
Message-Id: <1638857623-32379-1-git-send-email-bgodavar@codeaurora.org>
Precedence: bulk

From: Balakrishna Godavarthi <bgodavar@codeauroa.org>

Add bluetooth SoC WCN6750 node for SC7280 IDP boards.

Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
---
v3:
  * Addressed reviewers comments
  * Added pin config for sw_ctrl line.
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  |  4 ++++
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 37 ++++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/sc7280-idp2.dts |  4 ++++
 3 files changed, 45 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
index 9b991ba..19bd228 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
@@ -56,6 +56,10 @@
 	};
 };
 
+&bluetooth {
+	vddio-supply = <&vreg_l19b_1p8>;
+};
+
 &ipa {
 	status = "okay";
 	modem-init;
diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index d623d71..b8b00dc 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -14,6 +14,11 @@
 #include "pmk8350.dtsi"
 
 / {
+	aliases {
+		bluetooth0 = &bluetooth;
+		serial1 = &uart7;
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 		label = "gpio-keys";
@@ -422,6 +427,23 @@
 				<&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: bluetooth {
+		compatible = "qcom,wcn6750-bt";
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_en>, <&swctrl_gpio>;
+		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 */
@@ -491,6 +513,14 @@
 };
 
 &tlmm {
+	bt_en: bt-en {
+		pins = "gpio85";
+		function = "gpio";
+		drive-strength = <2>;
+		output-low;
+		bias-disable;
+	};
+
 	nvme_pwren: nvme-pwren {
 		function = "gpio";
 	};
@@ -554,6 +584,13 @@
 		 */
 		bias-pull-up;
 	};
+
+	swctrl_gpio: swctrl-gpio {
+		pins = "gpio86";
+		function = "gpio";
+		input-enable;
+		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 0382c77..73b9911 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
@@ -23,6 +23,10 @@
 	};
 };
 
+&bluetooth {
+	vddio-supply = <&vreg_l18b_1p8>;
+};
+
 &nvme_pwren {
 	pins = "gpio51";
 };
-- 
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