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| author |   Shengjiu Wang <shengjiu.wang@nxp.com> | 2024-09-27 16:00:30 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2024-09-30 01:09:29 +0200 |
| commit | b47024dc624bcffb89d238f4a5b490363cea2a1e (patch) | |
| tree | 0443086cb6e6eb38a2d7983646bd241f253b9c31 | |
| parent | ASoC: fsl_micfil: fix regmap_write_bits usage (diff) | |
| download | wireguard-linux-b47024dc624bcffb89d238f4a5b490363cea2a1e.tar.xz wireguard-linux-b47024dc624bcffb89d238f4a5b490363cea2a1e.zip | |
ASoC: fsl_micfil: Add mclk enable flag
Previously the mclk is enabled in probe() stage, which
is not necessary. Move mclk enablement to hw_params()
and mclk disablement to hw_free() will be more efficient.
'mclk_flag' is used for this case.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/1727424031-19551-3-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/fsl/fsl_micfil.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index c347cb3a4712..6ecf46e9ac4c 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -58,6 +58,7 @@ struct fsl_micfil { int vad_detected; struct fsl_micfil_verid verid; struct fsl_micfil_param param; + bool mclk_flag; /* mclk enable flag */ }; struct fsl_micfil_soc_data { @@ -693,7 +694,6 @@ static int fsl_micfil_reparent_rootclk(struct fsl_micfil *micfil, unsigned int s clk = micfil->mclk; /* Disable clock first, for it was enabled by pm_runtime */ - clk_disable_unprepare(clk); fsl_asoc_reparent_pll_clocks(dev, clk, micfil->pll8k_clk, micfil->pll11k_clk, ratio); ret = clk_prepare_enable(clk); @@ -730,6 +730,8 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, if (ret) return ret; + micfil->mclk_flag = true; + ret = clk_set_rate(micfil->mclk, rate * clk_div * osr * 8); if (ret) return ret; @@ -764,6 +766,17 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, return 0; } +static int fsl_micfil_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + + clk_disable_unprepare(micfil->mclk); + micfil->mclk_flag = false; + + return 0; +} + static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); @@ -806,6 +819,7 @@ static const struct snd_soc_dai_ops fsl_micfil_dai_ops = { .startup = fsl_micfil_startup, .trigger = fsl_micfil_trigger, .hw_params = fsl_micfil_hw_params, + .hw_free = fsl_micfil_hw_free, }; static struct snd_soc_dai_driver fsl_micfil_dai = { @@ -1279,7 +1293,8 @@ static int fsl_micfil_runtime_suspend(struct device *dev) regcache_cache_only(micfil->regmap, true); - clk_disable_unprepare(micfil->mclk); + if (micfil->mclk_flag) + clk_disable_unprepare(micfil->mclk); clk_disable_unprepare(micfil->busclk); return 0; @@ -1294,10 +1309,12 @@ static int fsl_micfil_runtime_resume(struct device *dev) if (ret < 0) return ret; - ret = clk_prepare_enable(micfil->mclk); - if (ret < 0) { - clk_disable_unprepare(micfil->busclk); - return ret; + if (micfil->mclk_flag) { + ret = clk_prepare_enable(micfil->mclk); + if (ret < 0) { + clk_disable_unprepare(micfil->busclk); + return ret; + } } regcache_cache_only(micfil->regmap, false); |