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ASoC: codecs: tfa989x: Add support for tfa9897

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Add specific init function to poke needed registers & values for this IC

Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210528105101.508254-2-vincent.knecht@mailoo.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Vincent Knecht 2021-05-28 12:50:59 +02:00 committed by Mark Brown
parent 513df99993
commit 1ba1d69d8a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 25 additions and 0 deletions
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25
sound/soc/codecs/tfa989x.c
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@ -44,6 +44,7 @@
#define TFA989X_CURRENTSENSE4 0x49
#define TFA9895_REVISION 0x12
#define TFA9897_REVISION 0x97
struct tfa989x_rev {
unsigned int rev;
@ -175,6 +176,29 @@ static const struct tfa989x_rev tfa9895_rev = {
.init = tfa9895_init,
};
static int tfa9897_init(struct regmap *regmap)
{
int ret;
/* Reduce slewrate by clearing iddqtestbst to avoid booster damage */
ret = regmap_write(regmap, TFA989X_CURRENTSENSE3, 0x0300);
if (ret)
return ret;
/* Enable clipping */
ret = regmap_clear_bits(regmap, TFA989X_CURRENTSENSE4, 0x1);
if (ret)
return ret;
/* Set required TDM configuration */
return regmap_write(regmap, 0x14, 0x0);
}
static const struct tfa989x_rev tfa9897_rev = {
.rev = TFA9897_REVISION,
.init = tfa9897_init,
};
/*
* Note: At the moment this driver bypasses the "CoolFlux DSP" built into the
* TFA989X amplifiers. Unfortunately, there seems to be absolutely
@ -280,6 +304,7 @@ static int tfa989x_i2c_probe(struct i2c_client *i2c)
static const struct of_device_id tfa989x_of_match[] = {
{ .compatible = "nxp,tfa9895", .data = &tfa9895_rev },
{ .compatible = "nxp,tfa9897", .data = &tfa9897_rev },
{ }
};
MODULE_DEVICE_TABLE(of, tfa989x_of_match);