From 2f64b6ed44c26eeb3d1bf5428936629cf552eda7 Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Tue, 10 Nov 2015 14:40:55 +0800 Subject: [PATCH] ASoC: rl6231: avoid using divisible by 3 for DMIC clk Few codecs will meet no DMIC clock output issue when select a divided number which is divisible by 3. To prevent this issue, the patch ignore the numbers when calculating the DMIC clock divider. Signed-off-by: Bard Liao Signed-off-by: Mark Brown --- sound/soc/codecs/rl6231.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/codecs/rl6231.c b/sound/soc/codecs/rl6231.c index aca479fa7670..18b42925314e 100644 --- a/sound/soc/codecs/rl6231.c +++ b/sound/soc/codecs/rl6231.c @@ -80,6 +80,8 @@ int rl6231_calc_dmic_clk(int rate) } for (i = 0; i < ARRAY_SIZE(div); i++) { + if ((div[i] % 3) == 0) + continue; /* find divider that gives DMIC frequency below 3MHz */ if (3000000 * div[i] >= rate) return i;