On Mon, 10 Dec 2018 11:27:39 +1300, Darwin Dingel wrote:
> When a serial port continuously experiences input overrun from
> (1) continuous receive characters from remote and or (2) hardware
> issues, its interrupt handler can preempt other tasks especially
> when the system is busy (ie. boot up period). This can cause other
> tasks to get starved of processing time from the CPU.
>
> When this dts binding is enabled and input overrun on the serial port
> is detected, serial port receive will be throttled to give some breathing
> room for processing other tasks. Value provided will be in milliseconds.
>
> &serial0{
> overrun-throttle-ms = <500>;
> };
>
> Signed-off-by: Darwin Dingel <[email protected]>
> ---
>
> Notes:
> Changelog
> v1->v2:
> - Separated dts binding to another patch
>
> v2->v3:
> - Fixed commit message and reviewed-by fields
>
> Documentation/devicetree/bindings/serial/8250.txt | 1 +
> 1 file changed, 1 insertion(+)
>
Reviewed-by: Rob Herring <[email protected]>
