removed some other patches
back to original wm8804.c
restored wm8804.h to original version
Fine-grained control of the PLL generation
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 the "pllid"
argument of the "set_pll" function 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.
When pllid=0, the behaviour of the driver does not change.
correted minor style issues
Revert wm8804 driver to a version, that is only minimal patched. Mclk_div is now 0 whenever possible
Code cleanup
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.