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| author | Vincent Knecht <vincent.knecht@mailoo.org> | 2021-05-28 13:51:01 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-06-02 14:03:32 +0300 |
| commit | 8e5607e9941ce915187785bd09805bf7df9f7349 (patch) | |
| tree | 00a62d95f242707cbbe0a1d68e8a434bdd3c370a /sound/soc/codecs/tfa989x.c | |
| parent | 9cf1a98e2b0171e2586a13197a9a1ad605336166 (diff) | |
| download | linux-8e5607e9941ce915187785bd09805bf7df9f7349.tar.xz | |
ASoC: codecs: tfa989x: Add support for optional vddd-supply
Allow specifying Vddd regulator/supply to be enabled on I2C probing.
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210528105101.508254-4-vincent.knecht@mailoo.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/tfa989x.c')
| -rw-r--r-- | sound/soc/codecs/tfa989x.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sound/soc/codecs/tfa989x.c b/sound/soc/codecs/tfa989x.c index 6d94865c534b..643b45188b6f 100644 --- a/sound/soc/codecs/tfa989x.c +++ b/sound/soc/codecs/tfa989x.c @@ -10,6 +10,7 @@ #include <linux/i2c.h> #include <linux/module.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <sound/soc.h> #define TFA989X_STATUSREG 0x00 @@ -51,6 +52,10 @@ struct tfa989x_rev { int (*init)(struct regmap *regmap); }; +struct tfa989x { + struct regulator *vddd_supply; +}; + static bool tfa989x_writeable_reg(struct device *dev, unsigned int reg) { return reg > TFA989X_REVISIONNUMBER; @@ -242,10 +247,18 @@ static int tfa989x_dsp_bypass(struct regmap *regmap) BIT(TFA989X_SYS_CTRL_AMPC)); } +static void tfa989x_regulator_disable(void *data) +{ + struct tfa989x *tfa989x = data; + + regulator_disable(tfa989x->vddd_supply); +} + static int tfa989x_i2c_probe(struct i2c_client *i2c) { struct device *dev = &i2c->dev; const struct tfa989x_rev *rev; + struct tfa989x *tfa989x; struct regmap *regmap; unsigned int val; int ret; @@ -256,10 +269,31 @@ static int tfa989x_i2c_probe(struct i2c_client *i2c) return -ENODEV; } + tfa989x = devm_kzalloc(dev, sizeof(*tfa989x), GFP_KERNEL); + if (!tfa989x) + return -ENOMEM; + + i2c_set_clientdata(i2c, tfa989x); + + tfa989x->vddd_supply = devm_regulator_get(dev, "vddd"); + if (IS_ERR(tfa989x->vddd_supply)) + return dev_err_probe(dev, PTR_ERR(tfa989x->vddd_supply), + "Failed to get vddd regulator\n"); + regmap = devm_regmap_init_i2c(i2c, &tfa989x_regmap); if (IS_ERR(regmap)) return PTR_ERR(regmap); + ret = regulator_enable(tfa989x->vddd_supply); + if (ret) { + dev_err(dev, "Failed to enable vddd regulator: %d\n", ret); + return ret; + } + + ret = devm_add_action_or_reset(dev, tfa989x_regulator_disable, tfa989x); + if (ret) + return ret; + /* Bypass regcache for reset and init sequence */ regcache_cache_bypass(regmap, true); |