On Sun, Jan 12, 2014 at 10:11:25PM +0100, Daniel Matuschek wrote: > Signed-off-by: Daniel Matuschek <dan...@matuschek.net> > > After some discussions of the patch last week, here is a new version. > Simply reducing the post_table did not work, as for some frequencies > both settings (MCLKDIV=0 and MCLKDIV=1) are needed (e.g. 96 and 192kHz) > > > WM8804 can run with PLL frequencies of 256xfs and 128xfs for > most sample rates. At 192kHz only 128xfs is supported. The > existing driver selects 128xfs automatically for some lower > samples rates. By using an additional mclk_div divider, is > is now possible to control the behaviour. This allows using > 256xfs PLL frequency on all sample rates up to 96kHz. It > should allow lower jitter and better signal quality. The > behavior has to be controlled by the sound card driver, > because some sample frequency share the same setting. e.g. > 192kHz and 96kHz use 24.576MHz master clock. The only > difference is the MCLK divider. >
Commit message still needs fixed up, as per Mark's comments on your last patch. Otherwise looks ok to me. Thanks, Charles -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
