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authorFabio Estevam <fabio.estevam@freescale.com>2012-12-24 15:55:37 -0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-12-27 16:49:00 +0000
commit5f3d25c08dee44a40229f1f9e8934f3217478a67 (patch)
tree947f74d20ca3d812991e5f6f13a11149ca274657
parenta49f0d1ea3ec94fc7cf33a7c36a16343b74bd565 (diff)
ASoC: wm8985: Refactor set_pll code to avoid gcc warnings
Refactor set_pll code to avoid the following warnings: sound/soc/codecs/wm8985.c:852:50: warning: 'pll_div.k' may be used uninitialized in this function sound/soc/codecs/wm8985.c:849:9: warning: 'pll_div.n' may be used uninitialized in this function sound/soc/codecs/wm8985.c:848:23: warning: 'pll_div.div2' may be used uninitialized in this function Do the same as in commit 86ce6c9a (ASoC: WM8804: Refactor set_pll code to avoid GCC warnings). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
-rw-r--r--sound/soc/codecs/wm8985.c43
1 files changed, 20 insertions, 23 deletions
diff --git a/sound/soc/codecs/wm8985.c b/sound/soc/codecs/wm8985.c
index ab3782657ac8..dd6ce3bc01cf 100644
--- a/sound/soc/codecs/wm8985.c
+++ b/sound/soc/codecs/wm8985.c
@@ -830,33 +830,30 @@ static int wm8985_set_pll(struct snd_soc_dai *dai, int pll_id,
struct pll_div pll_div;
codec = dai->codec;
- if (freq_in && freq_out) {
+ if (!freq_in || !freq_out) {
+ /* disable the PLL */
+ snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
+ WM8985_PLLEN_MASK, 0);
+ } else {
ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in);
if (ret)
return ret;
- }
- /* disable the PLL before reprogramming it */
- snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
- WM8985_PLLEN_MASK, 0);
-
- if (!freq_in || !freq_out)
- return 0;
-
- /* set PLLN and PRESCALE */
- snd_soc_write(codec, WM8985_PLL_N,
- (pll_div.div2 << WM8985_PLL_PRESCALE_SHIFT)
- | pll_div.n);
- /* set PLLK */
- snd_soc_write(codec, WM8985_PLL_K_3, pll_div.k & 0x1ff);
- snd_soc_write(codec, WM8985_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
- snd_soc_write(codec, WM8985_PLL_K_1, (pll_div.k >> 18));
- /* set the source of the clock to be the PLL */
- snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
- WM8985_CLKSEL_MASK, WM8985_CLKSEL);
- /* enable the PLL */
- snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
- WM8985_PLLEN_MASK, WM8985_PLLEN);
+ /* set PLLN and PRESCALE */
+ snd_soc_write(codec, WM8985_PLL_N,
+ (pll_div.div2 << WM8985_PLL_PRESCALE_SHIFT)
+ | pll_div.n);
+ /* set PLLK */
+ snd_soc_write(codec, WM8985_PLL_K_3, pll_div.k & 0x1ff);
+ snd_soc_write(codec, WM8985_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
+ snd_soc_write(codec, WM8985_PLL_K_1, (pll_div.k >> 18));
+ /* set the source of the clock to be the PLL */
+ snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
+ WM8985_CLKSEL_MASK, WM8985_CLKSEL);
+ /* enable the PLL */
+ snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
+ WM8985_PLLEN_MASK, WM8985_PLLEN);
+ }
return 0;
}