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ASoC: tlv320adcx140: Add controls for PDM clk 

Add ALSA controls to configure the PDM clocks.
The clocks need to be configurable to accommodate various microphones
that use clocks for low power/low resolution modes to high power/high
resolution modes.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200514123338.20392-1-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dan Murphy 2020-05-14 07:33:36 -05:00 committed by Mark Brown
parent 39ec7e9b69
commit 7cfa610205
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 19 additions and 0 deletions
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19
sound/soc/codecs/tlv320adcx140.c
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@ -180,6 +180,17 @@ static const struct snd_kcontrol_new decimation_filter_controls[] = {
SOC_DAPM_ENUM("Decimation Filter", decimation_filter_enum),
};
static const char * const pdmclk_text[] = {
"2.8224 MHz", "1.4112 MHz", "705.6 kHz", "5.6448 MHz"
};
static SOC_ENUM_SINGLE_DECL(pdmclk_select_enum, ADCX140_PDMCLK_CFG, 0,
pdmclk_text);
static const struct snd_kcontrol_new pdmclk_div_controls[] = {
SOC_DAPM_ENUM("PDM Clk Divider Select", pdmclk_select_enum),
};
static const char * const resistor_text[] = {
"2.5 kOhm", "10 kOhm", "20 kOhm"
};
@ -416,6 +427,9 @@ static const struct snd_soc_dapm_widget adcx140_dapm_widgets[] = {
SND_SOC_DAPM_MUX("IN4 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
in4_resistor_controls),
SND_SOC_DAPM_MUX("PDM Clk Div Select", SND_SOC_NOPM, 0, 0,
pdmclk_div_controls),
SND_SOC_DAPM_MUX("Decimation Filter", SND_SOC_NOPM, 0, 0,
decimation_filter_controls),
};
@ -493,6 +507,11 @@ static const struct snd_soc_dapm_route adcx140_audio_map[] = {
{"IN4 Analog Mic Resistor", "10 kOhm", "MIC4M Input Mux"},
{"IN4 Analog Mic Resistor", "20 kOhm", "MIC4M Input Mux"},
{"PDM Clk Div Select", "2.8224 MHz", "MIC1P Input Mux"},
{"PDM Clk Div Select", "1.4112 MHz", "MIC1P Input Mux"},
{"PDM Clk Div Select", "705.6 kHz", "MIC1P Input Mux"},
{"PDM Clk Div Select", "5.6448 MHz", "MIC1P Input Mux"},
{"MIC1 Analog Mux", "Line In", "MIC1P"},
{"MIC2 Analog Mux", "Line In", "MIC2P"},
{"MIC3 Analog Mux", "Line In", "MIC3P"},