On Thu, Sep 17, 2009 at 09:26:28PM +0900, jassi brar wrote: > > > + /* Currently, WM8580 driver doesn't support PLL-out rates > > > + * other than those mentioned in Table-52 Page-58 of WM8580A > That very manual. And i don't say the WM8580 doesn't support, I said > the WM8580 driver doesn't support: which can be verified looking at the > CODEC driver. Your comment says that only the output frequencies in table 52 are supported. Could you please provide more specific references to where this is done in the driver? I think you're confusing the fact that the example table lists most of the common audio frequencies with what the driver supports here. > Theoretically all output clocks are possible but usually the PLL coefficients > have limits on their value and thus final output. WM8580 driver too seems > to enforce that. > Though, you wud know better of WM8580. So what you're actually saying is that 256fs doesn't give us the option of an an in-range Fvco for the FLL at those frequencies (which is the check I think you're talking about here)? That's a limitation of the chip. Certainly, the comment is not accurate - the contents of table 52 aren't relevant here, the driver is calculating what it can do dynamically so the restrictions are a combination of the limits on Fvco and the pre and post scaling dividers available. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
