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ASoC: tas2770: Refactor sample rate function

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Refactor the tas2770_set_samplerate to simplify the code and access the
I2C bus only once per rate request. The ramp rate and sample rate bits
are contained in the same register so a single call to the
snd_soc_update_bits function is all that is needed

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200918190548.12598-9-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dan Murphy 2020-09-18 14:05:48 -05:00 committed by Mark Brown
parent d3964aff73
commit be05ab41c6
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 19 additions and 56 deletions
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75
sound/soc/codecs/tas2770.c
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@ -252,80 +252,43 @@ static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth)
static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
{
int ret;
struct snd_soc_component *component = tas2770->component;
int ramp_rate_val;
int ret;
switch (samplerate) {
case 48000:
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_48KHZ);
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ |
TAS2770_TDM_CFG_REG0_31_44_1_48KHZ;
break;
case 44100:
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
TAS2770_TDM_CFG_REG0_31_44_1_48KHZ;
break;
case 96000:
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_48KHZ);
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_88_2_96KHZ);
ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ |
TAS2770_TDM_CFG_REG0_31_88_2_96KHZ;
break;
case 88200:
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_88_2_96KHZ);
ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
TAS2770_TDM_CFG_REG0_31_88_2_96KHZ;
break;
case 19200:
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_48KHZ);
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_176_4_192KHZ);
ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ |
TAS2770_TDM_CFG_REG0_31_176_4_192KHZ;
break;
case 17640:
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_176_4_192KHZ);
ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
TAS2770_TDM_CFG_REG0_31_176_4_192KHZ;
break;
default:
ret = -EINVAL;
return -EINVAL;
}
ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK |
TAS2770_TDM_CFG_REG0_31_MASK,
ramp_rate_val);
if (ret < 0)
return ret;