From 5e5e2bef287b96ab29d2d93e89ecf0888323d7bf Mon Sep 17 00:00:00 2001 From: Mark Brown <broonie@opensource.wolfsonmicro.com> Date: Sun, 25 Apr 2010 12:20:30 +0100 Subject: [PATCH] ASoC: Warn on low WM8994 AIFCLK Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> --- sound/soc/codecs/wm8994.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index cdfbfb633f30..f04a116e678b 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -1769,6 +1769,11 @@ static int configure_aif_clock(struct snd_soc_codec *codec, int aif) dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n", aif + 1, rate); } + + if (rate && rate < 3000000) + dev_warn(codec->dev, "AIF%dCLK is %dHz, should be >=3MHz for optimal performance\n", + aif + 1, rate); + wm8994->aifclk[aif] = rate; snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1 + offset,