linux-kernel - Re: [PATCH 3/3] arm64: allwinner: a64: enable Bluetooth On Pinebook

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Date:   Mon, 6 Jul 2020 13:47:09 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Vasily Khoruzhick <anarsoul@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
        Ondrej Jirman <megous@...ous.com>
Subject: Re: [PATCH 3/3] arm64: allwinner: a64: enable Bluetooth On Pinebook

Hi,

On Sun, Jul 05, 2020 at 12:51:10PM -0700, Vasily Khoruzhick wrote:
> Pinebook has an RTL8723CS WiFi + BT chip, BT is connected to UART1
> and uses PL5 as device wake GPIO, PL6 as host wake GPIO the I2C
> controlling signals are connected to R_I2C bus.
> 
> Enable it in the device tree.
> 
> Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com>
> ---
>  .../arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> index 64b1c54f87c0..e63ff271be4e 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> @@ -408,6 +408,18 @@ &uart0 {
>  	status = "okay";
>  };
>  
> +&uart1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
> +	status = "okay";

You probably need uart-has-rtscts here

> +
> +	bluetooth {
> +		compatible = "realtek,rtl8723cs-bt";
> +		device-wake-gpios = <&r_pio 0 5 GPIO_ACTIVE_LOW>; /* PL5 */
> +		host-wake-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
> +	};

And max-speed I guess?

Maxime
>