[PATCH] ARM: dts: samsung: exynos4210-i9100: Fix Bluetooth node
From: Paul Cercueil <paul@crapouillou.net>
Date: 2026-08-28 18:44:04
Also in:
linux-devicetree, linux-samsung-soc, lkml, stable
Subsystem:
arm/samsung s3c, s5p and exynos arm architectures, the rest · Maintainers:
Krzysztof Kozlowski, Peter Griffin, Linus Torvalds
The BCM4330 is connected using CTS/RTS too, so add the 'uart-has-rtscts'
property.
Also add the missing 'max-speed' property and set it to 4 Mbps, which is
the maximum baud rate supported by this Bluetooth chip.
This fixes extremely choppy audio when connected to a Bluetooth speaker.
Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2")
Cc: stable@vger.kernel.org # v5.8+
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
arch/arm/boot/dts/samsung/exynos4210-i9100.dts | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts
index 8a635bee59fa..96db40102adb 100644
--- a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts
+++ b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts@@ -875,11 +875,14 @@ &serial_0 { status = "okay"; pinctrl-names = "default"; + uart-has-rtscts; pinctrl-0 = <&bt_en>, <&bt_res>, <&uart0_data>, <&uart0_fctl>; bluetooth { compatible = "brcm,bcm4330-bt"; + max-speed = <4000000>; + shutdown-gpios = <&gpl0 4 GPIO_ACTIVE_HIGH>; reset-gpios = <&gpl1 0 GPIO_ACTIVE_LOW>; device-wakeup-gpios = <&gpx3 1 GPIO_ACTIVE_HIGH>;
--
2.53.0