diff options
| author | Brent Lu <brent.lu@intel.com> | 2021-06-25 15:50:41 -0500 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-07-11 23:48:30 +0100 |
| commit | bc619cfc6278c87b4e310f9db9f45abc263220e8 (patch) | |
| tree | 9515faf00837ba096d8624f097f90b9744c94487 /sound/soc/sof/sof-audio.c | |
| parent | f99acc259f621ae6667782778b2065c15e109693 (diff) | |
| download | linux-stable-bc619cfc6278c87b4e310f9db9f45abc263220e8.tar.gz linux-stable-bc619cfc6278c87b4e310f9db9f45abc263220e8.tar.bz2 linux-stable-bc619cfc6278c87b4e310f9db9f45abc263220e8.zip | |
ASoC: SOF: add a helper to get topology configured bclk
Add helper function sof_dai_ssp_bclk() to get the BCLK frequency
configured by topology.
Reviewed-by: Bard Liao <bard.liao@intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210625205042.65181-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/sof-audio.c')
| -rw-r--r-- | sound/soc/sof/sof-audio.c | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c index 510883cd9107..989912f2b739 100644 --- a/sound/soc/sof/sof-audio.c +++ b/sound/soc/sof/sof-audio.c @@ -433,11 +433,10 @@ struct snd_sof_dai *snd_sof_find_dai(struct snd_soc_component *scomp, return NULL; } -/* - * Helper to get SSP MCLK from a pcm_runtime. - * Return 0 if not exist. - */ -int sof_dai_get_mclk(struct snd_soc_pcm_runtime *rtd) +#define SOF_DAI_CLK_INTEL_SSP_MCLK 0 +#define SOF_DAI_CLK_INTEL_SSP_BCLK 1 + +static int sof_dai_get_clk(struct snd_soc_pcm_runtime *rtd, int clk_type) { struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME); @@ -450,17 +449,46 @@ int sof_dai_get_mclk(struct snd_soc_pcm_runtime *rtd) switch (dai->dai_config->type) { case SOF_DAI_INTEL_SSP: - return dai->dai_config->ssp.mclk_rate; + switch (clk_type) { + case SOF_DAI_CLK_INTEL_SSP_MCLK: + return dai->dai_config->ssp.mclk_rate; + case SOF_DAI_CLK_INTEL_SSP_BCLK: + return dai->dai_config->ssp.bclk_rate; + default: + dev_err(rtd->dev, "fail to get SSP clk %d rate\n", + clk_type); + return -EINVAL; + } + break; default: /* not yet implemented for platforms other than the above */ - dev_err(rtd->dev, "mclk for dai_config->type %d not supported yet!\n", + dev_err(rtd->dev, "DAI type %d not supported yet!\n", dai->dai_config->type); return -EINVAL; } } + +/* + * Helper to get SSP MCLK from a pcm_runtime. + * Return 0 if not exist. + */ +int sof_dai_get_mclk(struct snd_soc_pcm_runtime *rtd) +{ + return sof_dai_get_clk(rtd, SOF_DAI_CLK_INTEL_SSP_MCLK); +} EXPORT_SYMBOL(sof_dai_get_mclk); /* + * Helper to get SSP BCLK from a pcm_runtime. + * Return 0 if not exist. + */ +int sof_dai_get_bclk(struct snd_soc_pcm_runtime *rtd) +{ + return sof_dai_get_clk(rtd, SOF_DAI_CLK_INTEL_SSP_BCLK); +} +EXPORT_SYMBOL(sof_dai_get_bclk); + +/* * SOF Driver enumeration. */ int sof_machine_check(struct snd_sof_dev *sdev) |