linux-kernel - Re: [PATCH v2] arm64: dts: mediatek: mt8192-asurada-hayato: Enable Bluetooth

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Message-ID: <9125e52a-614c-5ca2-ca29-654b79ab52c7@gmail.com>
Date:   Mon, 29 May 2023 16:29:02 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Chen-Yu Tsai <wenst@...omium.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Subject: Re: [PATCH v2] arm64: dts: mediatek: mt8192-asurada-hayato: Enable
 Bluetooth



On 24/04/2023 12:04, Chen-Yu Tsai wrote:
> 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@...omium.org>
> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

Applied, thanks

> ---
> Changes since v1:
> - Dropped unreferenced labels
> - Dropped GPIO line name comments
> - Fixed pinctrl node names
> - Dropped "output-enable" property
> - Added spacing between device nodes for consistency
> 
>   .../dts/mediatek/mt8192-asurada-hayato-r1.dts | 81 +++++++++++++++++++
>   1 file changed, 81 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..6e23428a3ed2 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 +40,90 @@ CROS_STD_MAIN_KEYMAP
>   	>;
>   };
>   
> +&pio {
> +	bt_pins: bt-pins {
> +		pins-bt-kill {
> +			pinmux = <PINMUX_GPIO144__FUNC_GPIO144>;
> +			output-low;
> +		};
> +
> +		pins-bt-wake {
> +			pinmux = <PINMUX_GPIO22__FUNC_GPIO22>;
> +			bias-pull-up;
> +		};
> +
> +		pins-ap-wake-bt {
> +			pinmux = <PINMUX_GPIO168__FUNC_GPIO168>;
> +			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>;
> +		};
> +	};
> +
> +	uart1_pins_sleep: uart1-sleep-pins {
> +		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>;
> +		};
> +	};
> +};
> +
>   &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 {
> +		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>;
> +	};
> +};