On Fri, Nov 18, 2016 at 01:47:12PM +0800, Grace Kao wrote: > 256FS sysclk gives the best audio quality per nau8825 datasheet. > > Loud headphone pop happens if there is no sysclk during nau8825 > playback power up sequence. Currently Skylake does not output MCLK/FS > when the back-end DAI op hw_param is called, so we cannot switch to > MCLK/FS in hw_param. This patch reduces pop by leting nau8825 keep > using its internal VCO clock during widget power up sequence, until > SNDRV_PCM_TRIGGER_START when MCLK/FS is available. > > --- > > diff --git a/sound/soc/intel/boards/skl_nau88l25_max98357a.c b/sound/soc/intel/boards/skl_nau88l25_max98357a.c I can't do anything with this without a Signed-off-by, please see Documentation/SubmittingPatches for an explanation of what this means.
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