ASoC: Set full range of WM8994 FLL Fratio values

Use all the available Fratio values when configuring the WM8994 FLL, not
just 0 and 3, following more complete characterisation of the device
performance.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index a27b2ff769d9..8d3ea9b24267 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -2784,9 +2784,18 @@ static int wm8994_get_fll_config(struct fll_div *fll,
 
         if (freq_in > 1000000) {
                 fll->fll_fratio = 0;
-        } else {
+        } else if (freq_in > 256000) {
+                fll->fll_fratio = 1;
+                freq_in *= 2;
+        } else if (freq_in > 128000) {
+                fll->fll_fratio = 2;
+                freq_in *= 4;
+        } else if (freq_in > 64000) {
                 fll->fll_fratio = 3;
                 freq_in *= 8;
+        } else {
+                fll->fll_fratio = 4;
+                freq_in *= 16;
         }
         pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in);