At Wed, 3 Dec 2014 00:12:55 +0100,
Rickard Strandqvist wrote:
>
> Remove function snd_cmipci_pll_rmn() that is not used anywhere.
It's an experimental code that is currently disabled. Keeping such a
code would be still meaningful if anyone wants to start a similar
experiment again.
Takashi
> This was partially found by using a static code analysis program called
> cppcheck.
>
> Signed-off-by: Rickard Strandqvist <rickard_strandqv...@spectrumdigital.se>
> ---
> sound/pci/cmipci.c | 41 -----------------------------------------
> 1 file changed, 41 deletions(-)
>
> diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
> index 85ed403..e33edae 100644
> --- a/sound/pci/cmipci.c
> +++ b/sound/pci/cmipci.c
> @@ -615,47 +615,6 @@ static unsigned int snd_cmipci_rate_freq(unsigned int
> rate)
>
> #ifdef USE_VAR48KRATE
> /*
> - * Determine PLL values for frequency setup, maybe the CMI8338 (CMI8738???)
> - * does it this way .. maybe not. Never get any information from C-Media
> about
> - * that <wer...@suse.de>.
> - */
> -static int snd_cmipci_pll_rmn(unsigned int rate, unsigned int adcmult, int
> *r, int *m, int *n)
> -{
> - unsigned int delta, tolerance;
> - int xm, xn, xr;
> -
> - for (*r = 0; rate < CM_MAXIMUM_RATE/adcmult; *r += (1<<5))
> - rate <<= 1;
> - *n = -1;
> - if (*r > 0xff)
> - goto out;
> - tolerance = rate*CM_TOLERANCE_RATE;
> -
> - for (xn = (1+2); xn < (0x1f+2); xn++) {
> - for (xm = (1+2); xm < (0xff+2); xm++) {
> - xr = ((CM_REFFREQ_XIN/adcmult) * xm) / xn;
> -
> - if (xr < rate)
> - delta = rate - xr;
> - else
> - delta = xr - rate;
> -
> - /*
> - * If we found one, remember this,
> - * and try to find a closer one
> - */
> - if (delta < tolerance) {
> - tolerance = delta;
> - *m = xm - 2;
> - *n = xn - 2;
> - }
> - }
> - }
> -out:
> - return (*n > -1);
> -}
> -
> -/*
> * Program pll register bits, I assume that the 8 registers 0xf8 up to 0xff
> * are mapped onto the 8 ADC/DAC sampling frequency which can be chosen
> * at the register CM_REG_FUNCTRL1 (0x04).
> --
> 1.7.10.4
>
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