[alsa-devel] [PATCH] ASoC: nau8825: fix bug in FLL parameter

John Hsu KCHSU0 at nuvoton.com
Tue Sep 13 05:56:03 CEST 2016


In the FLL parameter calculation, the FVCO should choose the maximum one.
The patch is to fix the bug about the wrong FVCO chosen.

Signed-off-by: John Hsu <KCHSU0 at nuvoton.com>
---
 sound/soc/codecs/nau8825.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 057785b..e643be9 100644
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -1907,7 +1907,7 @@ static int nau8825_calc_fll_param(unsigned int fll_in, unsigned int fs,
 	/* Calculate the FLL 10-bit integer input and the FLL 16-bit fractional
 	 * input based on FDCO, FREF and FLL ratio.
 	 */
-	fvco = div_u64(fvco << 16, fref * fll_param->ratio);
+	fvco = div_u64(fvco_max << 16, fref * fll_param->ratio);
 	fll_param->fll_int = (fvco >> 16) & 0x3FF;
 	fll_param->fll_frac = fvco & 0xFFFF;
 	return 0;
-- 
2.6.4



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