This is a note to let you know that I've just added the patch titled
tty/serial: Fix XSCALE serial ports, e.g. ce4100
to my tty git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6.git
in the tty-next branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will also will be merged in the next major kernel release
during the merge window.
If you have any questions about this process, please let me know.
>From 5568181f188ae9485a0cdbea5ea48f63d186a298 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swar...@nvidia.com>
Date: Fri, 17 Jun 2011 09:45:07 -0600
Subject: tty/serial: Fix XSCALE serial ports, e.g. ce4100
Commit 4539c24fe4f92c09ee668ef959d3e8180df619b9 "tty/serial: Add
explicit PORT_TEGRA type" introduced separate flags describing the need
for IER bits UUE and RTOIE. Both bits are required for the XSCALE port
type. While that patch updated uart_config[] as required, the auto-probing
code wasn't updated to set the RTOIE flag when an XSCALE port type was
detected. This caused such ports to stop working. This patch rectifies
that.
Reported-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
Signed-off-by: Stephen Warren <swar...@nvidia.com>
Cc: stable <sta...@kernel.org> [3.0]
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
---
drivers/tty/serial/8250.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index f11df87..f1422a6 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -1107,7 +1107,7 @@ static void autoconfig_16550a(struct uart_8250_port *up)
*/
DEBUG_AUTOCONF("Xscale ");
up->port.type = PORT_XSCALE;
- up->capabilities |= UART_CAP_UUE;
+ up->capabilities |= UART_CAP_UUE | UART_CAP_RTOIE;
return;
}
} else {
--
1.7.6
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