Re: [PATCH] tty: serial: uartlite: Specify time for sending chars

From: Peter Korsgaard
Date: Mon May 05 2014 - 15:42:41 EST


>>>>> "Michal" == Michal Simek <monstr@xxxxxxxxx> writes:

Hi,

>> > diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
>> > index 5f90ef24d475..723a6b79cd14 100644
>> > --- a/drivers/tty/serial/uartlite.c
>> > +++ b/drivers/tty/serial/uartlite.c
>> > @@ -418,14 +418,20 @@ static struct uart_ops ulite_ops = {
>> > #ifdef CONFIG_SERIAL_UARTLITE_CONSOLE
>> > static void ulite_console_wait_tx(struct uart_port *port)
>> > {
>> > - int i;
>> > u8 val;
>> > + unsigned long timeout;
>>
>> > /* Spin waiting for TX fifo to have space available */
>> > - for (i = 0; i < 100000; i++) {
>>
>> It would be good to add a note about the slow jtag variant here.

> What exactly you would like to see here?
> Just that this 1s is here because of mdm uart.

Something like:

/*
* Spin waiting for TX fifo to have space available.
* When using the Microblaze Debug Module this can take up to 1s
*/

--
Bye, Peter Korsgaard
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