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ASoC: cros_ec_codec: Support setting bclk ratio 

Support setting bclk ratio from machine drivers.

Signed-off-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200125162917.247485-1-yuhsuan@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yu-Hsuan Hsu 2020-01-26 00:29:17 +08:00 committed by Mark Brown
parent bb6d3fb354
commit 99b4f439a1
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 22 additions and 3 deletions
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25
sound/soc/codecs/cros_ec_codec.c
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@ -45,6 +45,9 @@ struct cros_ec_codec_priv {
/* DMIC */
atomic_t dmic_probed;
/* I2S_RX */
uint32_t i2s_rx_bclk_ratio;
/* WoV */
bool wov_enabled;
uint8_t *wov_audio_shm_p;
@ -259,6 +262,7 @@ static int i2s_rx_hw_params(struct snd_pcm_substream *substream,
snd_soc_component_get_drvdata(component);
struct ec_param_ec_codec_i2s_rx p;
enum ec_codec_i2s_rx_sample_depth depth;
uint32_t bclk;
int ret;
if (params_rate(params) != 48000)
@ -284,15 +288,29 @@ static int i2s_rx_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
dev_dbg(component->dev, "set bclk to %u\n",
snd_soc_params_to_bclk(params));
if (priv->i2s_rx_bclk_ratio)
bclk = params_rate(params) * priv->i2s_rx_bclk_ratio;
else
bclk = snd_soc_params_to_bclk(params);
dev_dbg(component->dev, "set bclk to %u\n", bclk);
p.cmd = EC_CODEC_I2S_RX_SET_BCLK;
p.set_bclk_param.bclk = snd_soc_params_to_bclk(params);
p.set_bclk_param.bclk = bclk;
return send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_I2S_RX,
(uint8_t *)&p, sizeof(p), NULL, 0);
}
static int i2s_rx_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
{
struct snd_soc_component *component = dai->component;
struct cros_ec_codec_priv *priv =
snd_soc_component_get_drvdata(component);
priv->i2s_rx_bclk_ratio = ratio;
return 0;
}
static int i2s_rx_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
@ -340,6 +358,7 @@ static int i2s_rx_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
static const struct snd_soc_dai_ops i2s_rx_dai_ops = {
.hw_params = i2s_rx_hw_params,
.set_fmt = i2s_rx_set_fmt,
.set_bclk_ratio = i2s_rx_set_bclk_ratio,
};
static int i2s_rx_event(struct snd_soc_dapm_widget *w,