From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 9/9] omap: Disable serial port autoidle by default
Date: Tue, 2 Feb 2010 19:43:22 -0800 [thread overview]
Message-ID: <20100203034322.GZ22747@atomide.com> (raw)
In-Reply-To: <20100203022618.26347.51428.stgit@baageli.muru.com>
* Tony Lindgren <tony@atomide.com> [100202 18:23]:
> Currently the omap serial clocks are autoidled after 5 seconds.
> However, this causes lost characters on the serial ports. As this
> is considered non-standard behaviour for Linux, disable the timeout.
>
> Note that this will also cause blocking of any deeper omap sleep
> states.
>
> To enable the autoidling of the serial ports, do something like
> this for each serial port:
>
> # echo 5 > /sys/devices/platform/serial8250.0/sleep_timeout
> # echo 5 > /sys/devices/platform/serial8250.1/sleep_timeout
> ...
Turns out we also need to disable the timer in init, otherwise
the very first character after boot can get corrupt.
Updated version below, Kevin can you take one more look and see
if your S-O-B is still valid? :)
Regards,
Tony
next prev parent reply other threads:[~2010-02-03 3:43 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-03 2:25 [PATCH 0/9] omap fixes for 2.6.33-rc6 Tony Lindgren
2010-02-03 2:25 ` [PATCH 1/9] omap: define _toggle_gpio_edge_triggering only for OMAP1 Tony Lindgren
2010-02-03 8:13 ` Uwe Kleine-König
2010-02-03 16:57 ` Tony Lindgren
2010-02-03 17:10 ` Uwe Kleine-König
2010-02-03 17:25 ` Tony Lindgren
2010-02-03 2:25 ` [PATCH 2/9] omap: Remove old unused defines for OMAP_32KSYNCT_BASE Tony Lindgren
2010-02-03 2:26 ` [PATCH 3/9] ARCH OMAP : enable ARCH_HAS_HOLES_MEMORYMODEL for OMAP Tony Lindgren
2010-02-03 2:26 ` [PATCH 4/9] OMAP2/3: IRQ: ensure valid base address Tony Lindgren
2010-02-03 2:26 ` [PATCH 5/9] OMAP2/3: GPMC: ensure valid clock pointer Tony Lindgren
2010-02-03 2:26 ` [PATCH 6/9] omap: Fix 3630 mux errors Tony Lindgren
2010-02-03 2:26 ` [PATCH 7/9] omap: Fix arch/arm/mach-omap2/mux.c: Off by one error Tony Lindgren
2010-02-03 2:26 ` [PATCH 8/9] omap: Fix access to already released memory in clk_debugfs_register_one() Tony Lindgren
2010-02-03 2:26 ` [PATCH 9/9] omap: Disable serial port autoidle by default Tony Lindgren
2010-02-03 3:43 ` Tony Lindgren [this message]
2010-02-03 14:40 ` Kevin Hilman
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