diff options
| author | Benjamin Bara <benjamin.bara@skidata.com> | 2023-03-03 13:04:03 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-03-06 02:37:38 +0300 |
| commit | 448b06ba107d925d59d02781acdd2e4ad12dda0b (patch) | |
| tree | 031cc1eb284ed5f23a557ed53cb50fa9cd6b3af0 /sound/soc/codecs/max9867.c | |
| parent | d63e55b3e8ec90da69107f32038f3059d7317cc5 (diff) | |
| download | linux-448b06ba107d925d59d02781acdd2e4ad12dda0b.tar.xz | |
ASoC: maxim,max9867: add "mclk" support
Add basic support for the codecs' mclk.
Enable it on SND_SOC_BIAS_ON, disable it on SND_SOC_BIAS_OFF.
Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com>
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Link: https://lore.kernel.org/r/20230302-max9867-v2-3-fd2036d5e825@skidata.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/max9867.c')
| -rw-r--r-- | sound/soc/codecs/max9867.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/sound/soc/codecs/max9867.c b/sound/soc/codecs/max9867.c index e161ab037bf7..ae552d72beec 100644 --- a/sound/soc/codecs/max9867.c +++ b/sound/soc/codecs/max9867.c @@ -6,6 +6,7 @@ // Copyright 2018 Ladislav Michl <ladis@linux-mips.org> // +#include <linux/clk.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/module.h> @@ -16,6 +17,7 @@ #include "max9867.h" struct max9867_priv { + struct clk *mclk; struct regmap *regmap; const struct snd_pcm_hw_constraint_list *constraints; unsigned int sysclk, pclk; @@ -577,6 +579,11 @@ static int max9867_set_bias_level(struct snd_soc_component *component, struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component); switch (level) { + case SND_SOC_BIAS_ON: + err = clk_prepare_enable(max9867->mclk); + if (err) + return err; + break; case SND_SOC_BIAS_STANDBY: if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { err = regcache_sync(max9867->regmap); @@ -595,6 +602,7 @@ static int max9867_set_bias_level(struct snd_soc_component *component, return err; regcache_mark_dirty(max9867->regmap); + clk_disable_unprepare(max9867->mclk); break; default: break; @@ -663,9 +671,16 @@ static int max9867_i2c_probe(struct i2c_client *i2c) dev_info(&i2c->dev, "device revision: %x\n", reg); ret = devm_snd_soc_register_component(&i2c->dev, &max9867_component, max9867_dai, ARRAY_SIZE(max9867_dai)); - if (ret < 0) + if (ret < 0) { dev_err(&i2c->dev, "Failed to register component: %d\n", ret); - return ret; + return ret; + } + + max9867->mclk = devm_clk_get(&i2c->dev, NULL); + if (IS_ERR(max9867->mclk)) + return PTR_ERR(max9867->mclk); + + return 0; } static const struct i2c_device_id max9867_i2c_id[] = { |