bcm27xx: update patches from RPi foundation

[openwrt/staging/luka.git] / target / linux / bcm27xx / patches-5.4 / 950-0374-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch

diff --git a/target/linux/bcm27xx/patches-5.4/950-0374-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch b/target/linux/bcm27xx/patches-5.4/950-0374-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch
new file mode 100644 (file)
index 0000000..ce0b881
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0374-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch
@@ -0,0 +1,27 @@
+From 10430ccee66023c26c90cdbc0d6381b41dcecfb7 Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <wahrenst@gmx.net>
+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 <wahrenst@gmx.net>
+---
+ 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 {