Commit deae6fa1 authored Sep 11, 2023 by Tony Lindgren Committed by Greg Kroah-Hartman Oct 25, 2023

ARM: dts: ti: omap: Fix noisy serial with overrun-throttle-ms for mapphone



[ 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>

parent 476589a2

arch/arm/boot/dts/omap4-droid4-xt894.dts

+1 −0

Original line number	Diff line number	Diff line
		@@ -669,6 +669,7 @@
		&uart3 {
		interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
		&omap4_pmx_core 0x17c>;
		overrun-throttle-ms = <500>;
		};

		&uart4 {