From 10430ccee66023c26c90cdbc0d6381b41dcecfb7 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Wed, 25 Dec 2019 15:43:41 +0100 Subject: [PATCH] ARM: dts: bcm2838-rpi-4-b: Backport BT part from upstream The CYW43455 on the Raspberry Pi 4 doesn't use an external pin as lower power clock anymore. So drop the GPIO clock from pinctrl. While we are at this add the missing declaration of hardware flow control. Signed-off-by: Stefan Wahren --- arch/arm/boot/dts/bcm2838-rpi-4-b.dts | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/arch/arm/boot/dts/bcm2838-rpi-4-b.dts +++ b/arch/arm/boot/dts/bcm2838-rpi-4-b.dts @@ -101,7 +101,8 @@ /* uart0 communicates with the BT module */ &uart0 { pinctrl-names = "default"; - pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>; + pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>; + uart-has-rtscts; status = "okay"; bluetooth {