| Message ID | 20230911040828.39386-3-tony@atomide.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/4] ARM: dts: ti: omap: Fix bandgap thermal cells addressing for omap3/4 | expand |
Hi, On Mon, Sep 11, 2023 at 07:08:26AM +0300, Tony Lindgren wrote: > 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> > Cc: Sebastian Reichel <sre@kernel.org> > Signed-off-by: Tony Lindgren <tony@atomide.com> > --- A bit of a hack, but I guess it improves the status quo, so: Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> -- Sebastian > 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 > --- 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 { > -- > 2.42.0
diff --git a/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi b/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi --- 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 {
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> Cc: Sebastian Reichel <sre@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> --- arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi | 1 + 1 file changed, 1 insertion(+)