[alsa-devel] [PATCH] ASoC: wm8994: Suppres noop updates of FLL K

[Mark Brown]

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 at opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm8994.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 3009541..6d351b9 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1920,7 +1920,8 @@ 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,
-- 
1.7.9.1