From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 20 Apr 2010 04:36:11 +0000 (+0900)
Subject: ASoC: Set full range of WM8994 FLL Fratio values
X-Git-Tag: v3.0~4226^2~7^2~48
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7d48a6acbcf5325a2551e948bd1557a46dec4c76;p=platform%2Fkernel%2Flinux-amlogic.git

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>
---

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index a27b2ff..8d3ea9b 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);