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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0373-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0373-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch27
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0373-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch b/target/linux/bcm27xx/patches-5.4/950-0373-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch
new file mode 100644
index 0000000000..ce0b8811d0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0373-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 {