linux-kernel - [PATCH] sound: pci: cmipci.c: Cleaning up function that are not used anywhere

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Message-Id: <1417561975-27627-1-git-send-email-rickard_strandqvist@spectrumdigital.se>
Date:	Wed,  3 Dec 2014 00:12:55 +0100
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Benoit Taine <benoit.taine@...6.fr>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] sound: pci: cmipci.c:  Cleaning up function that are not used anywhere

Remove function snd_cmipci_pll_rmn() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.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 <werner@...e.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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