tree ba0f7f83df9c5e6c5cb0178426d0a7f772b972da
parent 7220b9f4bd4fad41f6f7299fe74c2c38ec85d793
author Jarkko Nikula <jarkko.nikula@nokia.com> 1238160721 +0200
committer Mark Brown <broonie@opensource.wolfsonmicro.com> 1238686457 +0100

ASoC: OMAP: Set minimum buffer size constraint for McBSP2 in OMAP3

McBSP2 in OMAP3 has 1 ksample (1k x 32 bit) internal FIFO. During
initial playback startup, this FIFO is keeping the DMA request active
until the FIFO is full.

So now if ALSA buffer size is smaller, DMA is looping around it while
filling up the HW FIFO, generating burst of interrupts as well and SW
doesn't have any change to fill enough data.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>