[PATCH 5.4 090/165] ASoC: wm8962: fix lambda value

Greg Kroah-Hartman
2020-01-11T10:28:33Z

From: Shengjiu Wang <shengjiu.wang@nxp.com>

[ Upstream commit 556672d75ff486e0b6786056da624131679e0576 ]

According to user manual, it is required that FLL_LAMBDA > 0
in all cases (Integer and Franctional modes).

Fixes: 9a76f1ff6e29 ("ASoC: Add initial WM8962 CODEC driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/1576065442-19763-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/wm8962.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 3e5c69fbc33a..d9d59f45833f 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -2788,7 +2788,7 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,

if (target % Fref == 0) {
fll_div->theta = 0;
- fll_div->lambda = 0;
+ fll_div->lambda = 1;
} else {
gcd_fll = gcd(target, fratio * Fref);

@@ -2858,7 +2858,7 @@ static int wm8962_set_fll(struct snd_soc_component *component, int fll_id, int s
return -EINVAL;
}

- if (fll_div.theta || fll_div.lambda)
+ if (fll_div.theta)
fll1 |= WM8962_FLL_FRAC;

/* Stop the FLL while we reconfigure */
--
2.20.1