Unverified Commit 42d5031d authored by Dan Murphy's avatar Dan Murphy Committed by Mark Brown
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ASoC: tlv320adcx140: Add the config to configure Tx ASI output 



Add code to allow the ASI Tx output to be placed into High-z mode
during unused ASI cycles.  This allows for other devices that may be on
the bus to drive the ASI out. By default the 320adcx140 sends 0's for
unused cycles.

Signed-off-by: default avatarDan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200915190606.1744-4-dmurphy@ti.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent dcde34c4

sound/soc/codecs/tlv320adcx140.c

+11 −0
Original line number Diff line number Diff line
@@ -876,6 +876,7 @@ static int adcx140_codec_probe(struct snd_soc_component *component) 
	u32 gpi_input_val = 0;

	int i;

	int ret;

	bool tx_high_z;



	ret = device_property_read_u32(adcx140->dev, "ti,mic-bias-source",

				      &bias_source);
@@ -967,6 +968,16 @@ static int adcx140_codec_probe(struct snd_soc_component *component) 
	if (ret)

		dev_err(adcx140->dev, "setting MIC bias failed %d\n", ret);



	tx_high_z = device_property_read_bool(adcx140->dev, "ti,asi-tx-drive");

	if (tx_high_z) {

		ret = regmap_update_bits(adcx140->regmap, ADCX140_ASI_CFG0,

				 ADCX140_TX_FILL, ADCX140_TX_FILL);

		if (ret) {

			dev_err(adcx140->dev, "Setting Tx drive failed %d\n", ret);

			goto out;

		}

	}



	adcx140_pwr_ctrl(adcx140, true);

out:

	return ret;

sound/soc/codecs/tlv320adcx140.h

+1 −0
Original line number Diff line number Diff line
@@ -146,5 +146,6 @@ 
#define ADCX140_GPO_CFG_MAX		4

#define ADCX140_GPO_DRV_MAX		5



#define ADCX140_TX_FILL    BIT(0)



#endif /* _TLV320ADCX140_ */