diff options
| author | Viorel Suman <viorel.suman@nxp.com> | 2019-08-31 00:59:10 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-09-13 12:39:27 +0300 |
| commit | 63d1a3488ff58e094a7f517cf93c0250f0a3f6be (patch) | |
| tree | e42acbeb943177f256d2b62c83a42765da180abd /sound | |
| parent | d1c9e44a858d706ce0b496f559b25732e6697b0c (diff) | |
| download | linux-63d1a3488ff58e094a7f517cf93c0250f0a3f6be.tar.xz | |
ASoC: fsl_sai: Implement set_bclk_ratio
This is to allow machine drivers to set a certain bitclk rate
which might not be exactly rate * frame size.
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/20190830215910.31590-1-daniel.baluta@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_sai.c | 21 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_sai.h | 1 |
2 files changed, 20 insertions, 2 deletions
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index 728307acab90..ef0b74693093 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -137,6 +137,16 @@ static int fsl_sai_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, return 0; } +static int fsl_sai_set_dai_bclk_ratio(struct snd_soc_dai *dai, + unsigned int ratio) +{ + struct fsl_sai *sai = snd_soc_dai_get_drvdata(dai); + + sai->bclk_ratio = ratio; + + return 0; +} + static int fsl_sai_set_dai_sysclk_tr(struct snd_soc_dai *cpu_dai, int clk_id, unsigned int freq, int fsl_dir) { @@ -423,8 +433,14 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream, slot_width = sai->slot_width; if (!sai->is_slave_mode) { - ret = fsl_sai_set_bclk(cpu_dai, tx, - slots * slot_width * params_rate(params)); + if (sai->bclk_ratio) + ret = fsl_sai_set_bclk(cpu_dai, tx, + sai->bclk_ratio * + params_rate(params)); + else + ret = fsl_sai_set_bclk(cpu_dai, tx, + slots * slot_width * + params_rate(params)); if (ret) return ret; @@ -630,6 +646,7 @@ static void fsl_sai_shutdown(struct snd_pcm_substream *substream, } static const struct snd_soc_dai_ops fsl_sai_pcm_dai_ops = { + .set_bclk_ratio = fsl_sai_set_dai_bclk_ratio, .set_sysclk = fsl_sai_set_dai_sysclk, .set_fmt = fsl_sai_set_dai_fmt, .set_tdm_slot = fsl_sai_set_dai_tdm_slot, diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h index b89b0ca26053..b12cb578f6d0 100644 --- a/sound/soc/fsl/fsl_sai.h +++ b/sound/soc/fsl/fsl_sai.h @@ -176,6 +176,7 @@ struct fsl_sai { unsigned int mclk_streams; unsigned int slots; unsigned int slot_width; + unsigned int bclk_ratio; const struct fsl_sai_soc_data *soc_data; struct snd_dmaengine_dai_dma_data dma_params_rx; |