From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 7 Mar 2013 08:14:04 +0000 (+0800)
Subject: ASoC: arizona: Suppress reference calculations when setting REFCLK to 0
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=86cd684fcb3220f4aa20cf9e32fd1059373a608a;p=linux-beck.git

ASoC: arizona: Suppress reference calculations when setting REFCLK to 0

Allow users to keep on specifying their output frequency when disabling
the reference clock.

Reported-by: Kyung Kwee Ryu <Kyung-Kwee.Ryu@wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 53ddd529769c..ad21d8255341 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1249,7 +1249,7 @@ int arizona_set_fll_refclk(struct arizona_fll *fll, int source,
 	if (fll->ref_src == source && fll->ref_freq == Fref)
 		return 0;
 
-	if (fll->fout) {
+	if (fll->fout && Fref > 0) {
 		ret = arizona_calc_fll(fll, &ref, Fref, fll->fout);
 		if (ret != 0)
 			return ret;
@@ -1265,7 +1265,7 @@ int arizona_set_fll_refclk(struct arizona_fll *fll, int source,
 	fll->ref_src = source;
 	fll->ref_freq = Fref;
 
-	if (fll->fout) {
+	if (fll->fout && Fref > 0) {
 		arizona_enable_fll(fll, &ref, &sync);
 	}