OMAP3: McBSP: Change the way how the FIFO is handled

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Use the actual FIFO size in words as buffer_size on OMAP3.
Change the threshold configuration to use 1 based numbering, when
specifying the allowed threshold maximum or the McBSP threshold value.
Set the default maximum threshold to (buffer_size - 0x10) intialy.
>From users of McBSP, now it is expected to use this method.
Asking for threshold 1 means that the value written to threshold registers
are going to be 0, which means 1 word threshold.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolsfonmicro.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

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Peter Ujfalusi 2010-06-03 07:39:33 +03:00 • committed by Liam Girdwood

parent 0acce82b3d

commit 451fd82dc1

2 changed files with 25 additions and 15 deletions

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10

arch/arm/mach-omap2/mcbsp.c

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30

arch/arm/plat-omap/mcbsp.c

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