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>

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;
 }