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ASoC: wm8994: Suppress noop updates of FLL K
authorMark Brown <broonie@opensource.wolfsonmicro.com>
Sat, 3 Mar 2012 15:33:23 +0000 (15:33 +0000)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Sun, 4 Mar 2012 01:56:18 +0000 (01:56 +0000)
Using snd_soc_write() means we always write to the register even if it
already contains the newly calculated value.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
sound/soc/codecs/wm8994.c patch | blob | blame | history

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 73cd8b922d12ec155e469b28e338b01bb37fd6ae..a567a4d9b5dcd32eebb10273888ec4771978b0a4 100644 (file)
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1918,7 +1918,8 @@ static int _wm8994_set_fll(struct snd_soc_codec *codec, int id, int src,
                            WM8994_FLL1_OUTDIV_MASK |
                            WM8994_FLL1_FRATIO_MASK, reg);
 
-       snd_soc_write(codec, WM8994_FLL1_CONTROL_3 + reg_offset, fll.k);
+       snd_soc_update_bits(codec, WM8994_FLL1_CONTROL_3 + reg_offset,
+                           WM8994_FLL1_K_MASK, fll.k);
 
        snd_soc_update_bits(codec, WM8994_FLL1_CONTROL_4 + reg_offset,
                            WM8994_FLL1_N_MASK,