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ARM: dts: ti: omap: Fix noisy serial with overrun-throttle-ms for map…
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…phone

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 <[email protected]>
Cc: Carl Philipp Klemm <[email protected]>
Cc: Merlijn Wajer <[email protected]>
Cc: Pavel Machek <[email protected]>
Reviewed-by: Sebastian Reichel <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
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tmlind committed Sep 13, 2023
1 parent ac08bda commit 5ad37b5
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1 change: 1 addition & 0 deletions arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -640,6 +640,7 @@
&uart3 {
interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
&omap4_pmx_core 0x17c>;
overrun-throttle-ms = <500>;
};

&uart4 {
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