Re: [PATCH] OMAP2+: PM/serial: fix console semaphore acquire during suspend

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On Tue, 7 Dec 2010, Kevin Hilman wrote:

> commit 0d8e2d0dad98a693bad88aea6876ac8b94ad95c6 (OMAP2+: PM/serial:
> hold console semaphore while OMAP UARTs are disabled) added use of the
> console semaphore to protect UARTs from being accessed after disabled
> during idle, but this causes problems in suspend.
> 
> During suspend, the console semaphore is already held by the time we reach
> the OMAP suspend path, so the try_acquire_console_sem() will always fail and
> suspend will be aborted.
> 
> To fix, introduce a check so the console semaphore is only attempted
> during idle, and not during suspend.
> 
> Cc: Paul Walmsley <paul@xxxxxxxxx>
> Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>

Tested-by: Paul Walmsley <paul@xxxxxxxxx>


- Paul

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