Commit 18932974 authored Dec 11, 2019 by Shengjiu Wang Committed by Greg Kroah-Hartman Jan 12, 2020

ASoC: wm8962: fix lambda value



[ Upstream commit 556672d75ff486e0b6786056da624131679e0576 ]

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

Fixes: 9a76f1ff ("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>

parent d8ec4cf1

sound/soc/codecs/wm8962.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2792,7 +2792,7 @@ 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);

		@@ -2862,7 +2862,7 @@ 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 */