tree c156cf5e4b65af0ad7bd2f5828e7697884a3c358
parent 1a3e64aa480101d11d8cac94ca57fd8bbe2536b7
author Christopher Zimmermann <madroach@zakweb.de> 1127288482 -0700
committer David S. Miller <davem@davemloft.net> 1127288482 -0700

[SPARC] cs4231: Fix SBUS support in this driver.

From: Christopher Zimmermann <madroach@zakweb.de>

This patch enables SBus support for the cs4231 sound driver.
It is tested on an Ultra2. Capture and playback both work.
I experienced lags and crashes using certain threaded
players like ogg123 and mp3blaster, while the former is
lagging far more. This behavior may be specific to SMP
systems. It is reproducable using the dummy sound card
driver. Sox works flawlessly.

Setting up the calculation of ptr in snd_cs4231_playback_pointer 
was a bit strange. I got it to work by not incrementing the
[pc]_periods_sent counter when starting DMA the first time
in cs4231_dma_trigger. Therefore this dummy thing.

[ I did some minor cleanups -DaveM ]

Signed-off-by: David S. Miller <davem@davemloft.net>