Unverified Commit 1ba1d69d authored by Vincent Knecht's avatar Vincent Knecht Committed by Mark Brown
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ASoC: codecs: tfa989x: Add support for tfa9897 



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

Signed-off-by: default avatarVincent Knecht <vincent.knecht@mailoo.org>
Reviewed-by: default avatarStephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210528105101.508254-2-vincent.knecht@mailoo.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 513df999

sound/soc/codecs/tfa989x.c

+25 −0
Original line number Diff line number Diff line
@@ -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);