This patch moves all the PCM error handling for clock config out of trigger() and startup() and into prepare().

Signed-off-by: Margarita Olaya Cabrera magi.olaya@ti.com Acked-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/codecs/twl6040.c | 55 +++++++++++++++++-------------------------- 1 files changed, 22 insertions(+), 33 deletions(-)

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c index d15ea44..a89e7b8 100644 --- a/sound/soc/codecs/twl6040.c +++ b/sound/soc/codecs/twl6040.c @@ -865,23 +865,6 @@ static int twl6040_startup(struct snd_pcm_substream *substream, struct snd_soc_codec *codec = rtd->codec; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);

- if (!priv->sysclk) { - dev_err(codec->dev, - "no mclk configured, call set_sysclk() on init\n"); - return -EINVAL; - } - - /* - * capture is not supported at 17.64 MHz, - * it's reserved for headset low-power playback scenario - */ - if ((priv->sysclk == 17640000) && substream->stream) { - dev_err(codec->dev, - "capture mode is not supported at %dHz\n", - priv->sysclk); - return -EINVAL; - } - snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, priv->sysclk_constraints); @@ -925,31 +908,37 @@ static int twl6040_hw_params(struct snd_pcm_substream *substream, return 0; }

-static int twl6040_trigger(struct snd_pcm_substream *substream, - int cmd, struct snd_soc_dai *dai) +static int twl6040_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->codec; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);

- switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - /* - * low-power playback mode is restricted - * for headset path only - */ - if ((priv->sysclk == 17640000) && priv->non_lp) { + if (!priv->sysclk) { + dev_err(codec->dev, + "no mclk configured, call set_sysclk() on init\n"); + return -EINVAL; + } + + /* + * capture is not supported at 17.64 MHz, + * it's reserved for headset low-power playback scenario + */ + if ((priv->sysclk == 17640000) && + substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + dev_err(codec->dev, + "capture mode is not supported at %dHz\n", + priv->sysclk); + return -EINVAL; + } + + if ((priv->sysclk == 17640000) && priv->non_lp) { dev_err(codec->dev, "some enabled paths aren't supported at %dHz\n", priv->sysclk); return -EPERM; - } - break; - default: - break; } - return 0; }

@@ -1063,7 +1052,7 @@ static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai, static struct snd_soc_dai_ops twl6040_dai_ops = { .startup = twl6040_startup, .hw_params = twl6040_hw_params, - .trigger = twl6040_trigger, + .prepare = twl6040_prepare, .set_sysclk = twl6040_set_dai_sysclk, };