linux-kernel - [PATCH 5.10 025/663] arm64: dts: renesas: beacon kit: Fix choppy Bluetooth Audio

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Date:   Mon,  1 Mar 2021 17:04:33 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Adam Ford <aford173@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 025/663] arm64: dts: renesas: beacon kit: Fix choppy Bluetooth Audio

From: Adam Ford <aford173@...il.com>

[ Upstream commit db030c5a9658846a42fbed4d43a8b5f28a2d7ab7 ]

The Bluetooth chip is capable of operating at 4Mbps, but the
max-speed setting was on the UART node instead of the Bluetooth
node, so the chip didn't operate at the correct speed resulting
in choppy audio.  Fix this by setting the max-speed in the proper
node.

Fixes: a1d8a344f1ca ("arm64: dts: renesas: Introduce r8a774a1-beacon-rzg2m-kit")
Signed-off-by: Adam Ford <aford173@...il.com>
Link: https://lore.kernel.org/r/20201213183759.223246-3-aford173@gmail.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
index 97272f5fa0abf..6d24b36ca0a7c 100644
--- a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
@@ -88,7 +88,6 @@
 	pinctrl-names = "default";
 	uart-has-rtscts;
 	status = "okay";
-	max-speed = <4000000>;
 
 	bluetooth {
 		compatible = "brcm,bcm43438-bt";
@@ -97,6 +96,7 @@
 		device-wakeup-gpios = <&pca9654 5 GPIO_ACTIVE_HIGH>;
 		clocks = <&osc_32k>;
 		clock-names = "extclk";
+		max-speed = <4000000>;
 	};
 };
 
-- 
2.27.0