On Tue, Dec 10, 2013 at 01:18:42PM +0800, Nicolin Chen wrote:
On Mon, Dec 09, 2013 at 05:56:40PM +0000, Mark Brown wrote:
On Fri, Dec 06, 2013 at 11:38:29PM +0800, Nicolin Chen wrote:
+static int imx_hifi_hw_free(struct snd_pcm_substream *substream) +{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- /* Don't diable FLL if still having multiple substreams running */
- if (codec_dai->active != 1)
return 0;- return imx_wm8962_disable_fll(codec_dai);
This will still disable the FLL if there's an analogue bypass path active. I'd suggest changing enable() and disable() to reference count.
I was expecting this would disable it for further reconfiguration. But it seems I should also considerate the case using bypass path and normal PCM playback simultaneously, which looks a bit complex.
Hmm...Sorry for asking a stupid question that how to test bypass path with WM8962? I've tried some amixer commands to enable the bypass-path switches. But we still need to power the Codec up like using arecord or aplay to call wm8962_resume() and DAPM-related, right?
Sir, could you please share a simple flow for user space so that I can test and make the patch more comprehensive?
Thank you, Nicolin Chen