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ASoC: codecs: tas5720: add TAS5722 TDM slot width setting support

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Unlike the TAS5720, the TAS5722 can be configured to utilize 16-bit wide
slots in TDM mode. This can help easing audio clocking/frequency
requirements.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andreas Dannenberg 2018-08-31 09:47:14 -05:00 committed by Mark Brown
parent ec94c177bf
commit db658f40ca
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GPG Key ID: 24D68B725D5487D0
1 changed files with 15 additions and 0 deletions
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15
sound/soc/codecs/tas5720.c
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@ -152,6 +152,7 @@ static int tas5720_set_dai_tdm_slot(struct snd_soc_dai *dai,
int slots, int slot_width)
{
struct snd_soc_component *component = dai->component;
struct tas5720_data *tas5720 = snd_soc_component_get_drvdata(component);
unsigned int first_slot;
int ret;
@ -185,6 +186,20 @@ static int tas5720_set_dai_tdm_slot(struct snd_soc_dai *dai,
if (ret < 0)
goto error_snd_soc_component_update_bits;
/* Configure TDM slot width. This is only applicable to TAS5722. */
switch (tas5720->devtype) {
case TAS5722:
ret = snd_soc_component_update_bits(component, TAS5722_DIGITAL_CTRL2_REG,
TAS5722_TDM_SLOT_16B,
slot_width == 16 ?
TAS5722_TDM_SLOT_16B : 0);
if (ret < 0)
goto error_snd_soc_component_update_bits;
break;
default:
break;
}
return 0;
error_snd_soc_component_update_bits: