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 --- sound/soc/codecs/tlv320adcx140.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c index 0f713efde046..97634e0ca0ba 100644 --- a/sound/soc/codecs/tlv320adcx140.c +++ b/sound/soc/codecs/tlv320adcx140.c @@ -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"},