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From:   Chen-Yu Tsai <wenst@chromium.org>
To:     Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
Cc:     Chen-Yu Tsai <wenst@chromium.org>,
        =?UTF-8?q?N=C3=ADcolas=20F=20=2E=20R=20=2E=20A=20=2E=20Prado?= 
        <nfraprado@collabora.com>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Subject: [PATCH] arm64: dts: mediatek: mt8192-asurada-hayato: Enable Bluetooth
Date:   Fri, 21 Apr 2023 19:03:27 +0800
Message-ID: <20230421110327.2395804-1-wenst@chromium.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Hayato's Realtek WiFi/BT module has it's Bluetooth function wired to
UART1.

Add and enable the relevant device nodes for it.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
 .../dts/mediatek/mt8192-asurada-hayato-r1.dts | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts b/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts
index 43a823990a92..6a7d7870525b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts
@@ -40,9 +40,89 @@ CROS_STD_MAIN_KEYMAP
 	>;
 };
 
+&pio {
+	bt_pins: bt-pins {
+		bt_kill: pins-bt-kill {
+			pinmux = <PINMUX_GPIO144__FUNC_GPIO144>; /* BT_KILL_L */
+			output-low;
+		};
+
+		bt_wake: pins-bt-wake {
+			pinmux = <PINMUX_GPIO22__FUNC_GPIO22>;  /* bt to wake ap */
+			bias-pull-up;
+		};
+
+		ap_wake_bt: pins-ap-wake-bt {
+			pinmux = <PINMUX_GPIO168__FUNC_GPIO168>; /* AP_WAKE_BT_H */
+			output-low;
+		};
+	};
+
+	uart1_pins: uart1-pins {
+		pins-rx {
+			pinmux = <PINMUX_GPIO94__FUNC_URXD1>;
+			input-enable;
+			bias-pull-up;
+		};
+
+		pins-tx {
+			pinmux = <PINMUX_GPIO95__FUNC_UTXD1>;
+		};
+
+		pins-cts {
+			pinmux = <PINMUX_GPIO166__FUNC_UCTS1>;
+			input-enable;
+		};
+
+		pins-rts {
+			pinmux = <PINMUX_GPIO167__FUNC_URTS1>;
+			output-enable;
+		};
+	};
+
+	uart1_pins_sleep: uart1-pins-sleep {
+		pins-rx {
+			pinmux = <PINMUX_GPIO94__FUNC_GPIO94>;
+			input-enable;
+			bias-pull-up;
+		};
+		pins-tx {
+			pinmux = <PINMUX_GPIO95__FUNC_UTXD1>;
+		};
+		pins-cts {
+			pinmux = <PINMUX_GPIO166__FUNC_UCTS1>;
+			input-enable;
+		};
+		pins-rts {
+			pinmux = <PINMUX_GPIO167__FUNC_URTS1>;
+			output-enable;
+		};
+	};
+};
+
 &touchscreen {
 	compatible = "hid-over-i2c";
 	post-power-on-delay-ms = <10>;
 	hid-descr-addr = <0x0001>;
 	vdd-supply = <&pp3300_u>;
 };
+
+&uart1 {
+	status = "okay";
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&uart1_pins>;
+	pinctrl-1 = <&uart1_pins_sleep>;
+	/delete-property/ interrupts;
+	interrupts-extended = <&gic GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH 0>,
+			      <&pio 94 IRQ_TYPE_EDGE_FALLING>;
+
+	bluetooth: bluetooth {
+		compatible = "realtek,rtl8822cs-bt";
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_pins>;
+
+		enable-gpios = <&pio 144 GPIO_ACTIVE_HIGH>;
+		device-wake-gpios = <&pio 168 GPIO_ACTIVE_HIGH>;
+		host-wake-gpios = <&pio 22 GPIO_ACTIVE_LOW>;
+	};
+};
-- 
2.40.0.634.g4ca3ef3211-goog