From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 9 Jul 2014 16:41:43 +0000 (+0100)
Subject: ASoC: arizona: Do not test ratio zero as it is not a valid setting
X-Git-Tag: firefly_0821_release~176^2~3158^2~37^2~11^5~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4714bc015de147c2da5248762b2772c6dbf160eb;p=firefly-linux-kernel-4.4.55.git

ASoC: arizona: Do not test ratio zero as it is not a valid setting

Zero is not a valid FRATIO for the FLL, as such we shouldn't test it
whilst refining the FRATIO. This patch does just that.

Reported-by: Ryo Tsutsui <ryo.tsutsui@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 41b56ee6ff51..b03974eb541e 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1585,7 +1585,7 @@ static int arizona_calc_fratio(struct arizona_fll *fll,
 			}
 		}
 
-		for (ratio = init_ratio - 1; ratio >= 0; ratio--) {
+		for (ratio = init_ratio - 1; ratio > 0; ratio--) {
 			if (ARIZONA_FLL_VCO_CORNER / (fll->vco_mult * ratio) <
 			    Fref)
 				break;