This is a note to let you know that I've just added the patch titled arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio to the 5.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm64-dts-imx8mm-beacon-som-fix-choppy-bt-audio.patch and it can be found in the queue-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit e8904f8a0a987fe9700873262ba074ffd77ce4da Author: Adam Ford <aford173@xxxxxxxxx> Date: Wed Oct 7 08:02:37 2020 -0500 arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio [ Upstream commit 587258edd94c305077923ec458e04c032fca83e6 ] When streaming bluetooth audio, the sound is choppy due to the fact that the default baud rate of the HCI interface is too slow to handle 16-bit stereo at 48KHz. The Bluetooth chip is capable of up to 4M baud on the serial port, so this patch sets the max-speed to 4000000 in order to properly stream audio over the Bluetooth. Fixes: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit") Signed-off-by: Adam Ford <aford173@xxxxxxxxx> Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi index 94911b1707ef2..09d757b3e3ce6 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi @@ -210,6 +210,7 @@ host-wakeup-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>; device-wakeup-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>; clocks = <&osc_32k>; + max-speed = <4000000>; clock-names = "extclk"; }; };