Some OEM use a GPIO in addition to the tfa9897 RCV bit to
switch between loudspeaker and earpiece/receiver mode.
Add support for the GPIO switching by specifying rcv-gpios in DT.
Signed-off-by: Vincent Knecht <vincent.knecht@xxxxxxxxxx>
---
sound/soc/codecs/tfa989x.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/tfa989x.c b/sound/soc/codecs/tfa989x.c
index ada516acefc0..c96e941da1a9 100644
--- a/sound/soc/codecs/tfa989x.c
+++ b/sound/soc/codecs/tfa989x.c
@@ -7,6 +7,7 @@
* Copyright (C) 2013 Sony Mobile Communications Inc.
*/
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
@@ -56,6 +57,7 @@ struct tfa989x_rev {
struct tfa989x {
const struct tfa989x_rev *rev;
struct regulator *vddd_supply;
+ struct gpio_desc *rcv_gpiod;
};
static bool tfa989x_writeable_reg(struct device *dev, unsigned int reg)
@@ -103,10 +105,20 @@ static const struct snd_soc_dapm_route tfa989x_dapm_routes[] = {
{"Amp Input", "Right", "AIFINR"},
};
+static int tfa989x_put_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct tfa989x *tfa989x = snd_soc_component_get_drvdata(component);
+
+ gpiod_set_value_cansleep(tfa989x->rcv_gpiod, ucontrol->value.enumerated.item[0]);
+
+ return snd_soc_put_enum_double(kcontrol, ucontrol);
+}
+
static const char * const mode_text[] = { "Speaker", "Receiver" };
static SOC_ENUM_SINGLE_DECL(mode_enum, TFA989X_I2SREG, TFA989X_I2SREG_RCV, mode_text);
static const struct snd_kcontrol_new tfa989x_mode_controls[] = {
- SOC_ENUM("Mode", mode_enum),
+ SOC_ENUM_EXT("Mode", mode_enum, snd_soc_get_enum_double, tfa989x_put_mode),
};
static int tfa989x_probe(struct snd_soc_component *component)
@@ -305,6 +317,12 @@ static int tfa989x_i2c_probe(struct i2c_client *i2c)
return dev_err_probe(dev, PTR_ERR(tfa989x->vddd_supply),
"Failed to get vddd regulator\n");
+ if (tfa989x->rev->rev == TFA9897_REVISION) {
+ tfa989x->rcv_gpiod = devm_gpiod_get_optional(dev, "rcv", GPIOD_OUT_LOW);
+ if (IS_ERR(tfa989x->rcv_gpiod))
+ return PTR_ERR(tfa989x->rcv_gpiod);
+ }
+
regmap = devm_regmap_init_i2c(i2c, &tfa989x_regmap);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
--
2.31.1
