From 93c48994c73f5b5505f6d119f33408f40696b69a Mon Sep 17 00:00:00 2001 From: Vincent Knecht Date: Wed, 3 Mar 2021 19:26:19 +0100 Subject: [PATCH 66/78] ASoC: codecs: tfa989x: Add support for tfa9897 optional rcv-gpios 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 --- 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 ec778d048..8aef5d9c9 100644 --- a/sound/soc/codecs/tfa989x.c +++ b/sound/soc/codecs/tfa989x.c @@ -6,6 +6,7 @@ * Copyright (C) 2014-2020 NXP Semiconductors, All Rights Reserved. */ +#include #include #include #include @@ -55,6 +56,7 @@ 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) @@ -102,10 +104,20 @@ 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