From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio
Date: Wed, 7 Oct 2020 08:02:37 -0500 [thread overview]
Message-ID: <20201007130237.230613-1-aford173@gmail.com> (raw)
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@gmail.com>
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
index 55b36bddd513..b88c3c99b007 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
@@ -211,6 +211,7 @@ bluetooth {
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";
};
};
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org, Fabio Estevam <festevam@gmail.com>,
Adam Ford <aford173@gmail.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
aford@beaconembedded.com, linux-kernel@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
NXP Linux Team <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Shawn Guo <shawnguo@kernel.org>
Subject: [PATCH] arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio
Date: Wed, 7 Oct 2020 08:02:37 -0500 [thread overview]
Message-ID: <20201007130237.230613-1-aford173@gmail.com> (raw)
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@gmail.com>
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
index 55b36bddd513..b88c3c99b007 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
@@ -211,6 +211,7 @@ bluetooth {
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";
};
};
--
2.25.1
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next reply other threads:[~2020-10-07 13:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-07 13:02 Adam Ford [this message]
2020-10-07 13:02 ` [PATCH] arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio Adam Ford
2020-10-30 7:57 ` Shawn Guo
2020-10-30 7:57 ` Shawn Guo
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