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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2014-07-09 20:41:45 +0400
committerMark Brown <broonie@linaro.org>2014-07-10 14:09:15 +0400
commit35a730a0790b2a6535e0b4a964c6a8b2d27fa019 (patch)
tree8ba685398e8b4d6f69b3a07cede150f0e0be3cfb /sound/soc/codecs/arizona.c
parent29fee829408117624efcd478f6f228d77039b969 (diff)
downloadlinux-35a730a0790b2a6535e0b4a964c6a8b2d27fa019.tar.xz
ASoC: arizona: Correct relationship between VCO corner and Fref
When configuring the FLL we must ensure that the reference clock passed to the FLL is under a certain limit. This limit was specified incorrectly in the current code, this patch corrects this. Although the error will only be encountered in some edge cases. 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>
Diffstat (limited to 'sound/soc/codecs/arizona.c')
-rw-r--r--sound/soc/codecs/arizona.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 4c4727f0837c..6084af76f337 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1578,8 +1578,8 @@ static int arizona_calc_fratio(struct arizona_fll *fll,
while (div <= ARIZONA_FLL_MAX_REFDIV) {
for (ratio = init_ratio; ratio <= ARIZONA_FLL_MAX_FRATIO;
ratio++) {
- if (ARIZONA_FLL_VCO_CORNER / (fll->vco_mult * ratio) <
- Fref)
+ if ((ARIZONA_FLL_VCO_CORNER / 2) /
+ (fll->vco_mult * ratio) < Fref)
break;
if (target % (ratio * Fref)) {