On Mon, Jul 6, 2020 at 4:47 AM Maxime Ripard [off-list ref] wrote:

Hi,

On Sun, Jul 05, 2020 at 12:51:10PM -0700, Vasily Khoruzhick wrote:

quoted

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@gmail.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

Will add in v2

quoted

+
+     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?

There's no max-speed in the schema for this bluetooth controller.
Moreover it reads uart settings from firmware config. See
btrtl_get_uart_settings() in drivers/bluetooth/btrtl.c

Maxime

quoted

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