[alsa-devel] [PATCH 5/5] ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
Mark Brown
broonie at kernel.org
Wed Dec 3 18:38:54 CET 2014
On Wed, Dec 03, 2014 at 04:39:14PM +0000, Andrew Jackson wrote:
> If the FIFOs aren't flushed, the left/right channels may be swapped:
> this may occur if the FIFOs are not empty when the streams start.
> /* Iterate over set of channels - independently controlled. */
> do {
> if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
> + i2s_write_reg(dev->i2s_base, TXFFR, 1);
This is an example of the problem with putting fixes at the end of the
series - this can't be applied without your previous change to add the
support for more channels (which is a new feature).
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