Should only try to enable/disable the provided mclk, during bias level changes, if it's not NULL. Also return value of clk_prepare_enable() should be checked and dealt with accordingly.
Signed-off-by: Adam Thomson <[email protected]> --- sound/soc/codecs/da7219.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index adcc079..abba4b3 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1494,6 +1494,7 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); + int ret; switch (level) { case SND_SOC_BIAS_ON: @@ -1502,7 +1503,14 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_STANDBY: if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { /* MCLK */ - clk_prepare_enable(da7219->mclk); + if (da7219->mclk) { + ret = clk_prepare_enable(da7219->mclk); + if (ret) { + dev_err(codec->dev, + "Failed to enable mclk\n"); + return ret; + } + } /* Master bias */ snd_soc_update_bits(codec, DA7219_REFERENCES, @@ -1528,7 +1536,8 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, } /* MCLK */ - clk_disable_unprepare(da7219->mclk); + if (da7219->mclk) + clk_disable_unprepare(da7219->mclk); break; } -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
