Messages in this thread | | | From | Kumar Gala <> | Subject | Re: [PATCH] 8250 serial console update uart_8250_port ier | Date | Tue, 7 Feb 2006 09:12:10 -0600 |
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Russell,
If you are ok with this can we make sure this gets to Linus for 2.6.16
thanks
- kumar
On Feb 7, 2006, at 8:52 AM, Kumar Gala wrote:
> On some embedded PowerPC (MPC834x) systems an extra byte would some > times be > required to flush data out of the fifo. serial8250_console_write() > was updating > the IER in hardware withouth also updating the copy in > uart_8250_port. This > causes issues functions like serial8250_start_tx() and __stop_tx() > to misbehave. > > Signed-off-by: Kumar Gala <galak@kernel.crashing.org> > > --- > commit 0614711f0208f50e81d55283add8ae41bc332fc7 > tree 1da4194744b9ca1fe59976c6ebffccfee40299eb > parent 45a38d42185df3e328e35e5167f2bfe181361db9 > author Kumar Gala <galak@kernel.crashing.org> Tue, 07 Feb 2006 > 08:51:26 -0600 > committer Kumar Gala <galak@kernel.crashing.org> Tue, 07 Feb 2006 > 08:51:26 -0600 > > drivers/serial/8250.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c > index 179c1f0..b1fc97d 100644 > --- a/drivers/serial/8250.c > +++ b/drivers/serial/8250.c > @@ -2229,6 +2229,7 @@ serial8250_console_write(struct console > * and restore the IER > */ > wait_for_xmitr(up, BOTH_EMPTY); > + up->ier |= UART_IER_THRI; > serial_out(up, UART_IER, ier | UART_IER_THRI); > } > > > - > To unsubscribe from this list: send the line "unsubscribe linux- > kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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