From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Tony Lindgren <tony@atomide.com>,
Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>,
Carl Philipp Klemm <philipp@uvos.xyz>,
Merlijn Wajer <merlijn@wizzup.org>, Pavel Machek <pavel@ucw.cz>,
Sebastian Reichel <sebastian.reichel@collabora.com>,
Sasha Levin <sashal@kernel.org>,
bcousson@baylibre.com, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
linux-omap@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH AUTOSEL 6.5 02/18] ARM: dts: ti: omap: Fix noisy serial with overrun-throttle-ms for mapphone
Date: Sat, 7 Oct 2023 20:48:36 -0400 [thread overview]
Message-ID: <20231008004853.3767621-2-sashal@kernel.org> (raw)
In-Reply-To: <20231008004853.3767621-1-sashal@kernel.org>
From: Tony Lindgren <tony@atomide.com>
[ Upstream commit 5ad37b5e30433afa7a5513e3eb61f69fa0976785 ]
On mapphone devices we may get lots of noise on the micro-USB port in debug
uart mode until the phy-cpcap-usb driver probes. Let's limit the noise by
using overrun-throttle-ms.
Note that there is also a related separate issue where the charger cable
connected may cause random sysrq requests until phy-cpcap-usb probes that
still remains.
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi b/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi
index 091ba310053eb..d35b3cc95dfa2 100644
--- a/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi
+++ b/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi
@@ -640,6 +640,7 @@ &uart1 {
&uart3 {
interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
&omap4_pmx_core 0x17c>;
+ overrun-throttle-ms = <500>;
};
&uart4 {
--
2.40.1
next parent reply other threads:[~2023-10-08 0:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20231008004853.3767621-1-sashal@kernel.org>
2023-10-08 0:48 ` Sasha Levin [this message]
2023-10-08 0:48 ` [PATCH AUTOSEL 6.5 03/18] arm64: dts: mediatek: Fix "mediatek,merge-mute" and "mediatek,merge-fifo-en" types Sasha Levin
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