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 the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tty-serial-fix-xscale-serial-ports-e.g.-ce4100.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 5568181f188ae9485a0cdbea5ea48f63d186a298 Mon Sep 17 00:00:00 2001
From: Stephen Warren <[email protected]>
Date: Fri, 17 Jun 2011 09:45:07 -0600
Subject: tty/serial: Fix XSCALE serial ports, e.g. ce4100
From: Stephen Warren <[email protected]>
commit 5568181f188ae9485a0cdbea5ea48f63d186a298 upstream.
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 <[email protected]>
Tested-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Stephen Warren <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/tty/serial/8250.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -1107,7 +1107,7 @@ static void autoconfig_16550a(struct uar
*/
DEBUG_AUTOCONF("Xscale ");
up->port.type = PORT_XSCALE;
- up->capabilities |= UART_CAP_UUE;
+ up->capabilities |= UART_CAP_UUE | UART_CAP_RTOIE;
return;
}
} else {
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/tty-serial-fix-xscale-serial-ports-e.g.-ce4100.patch
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