Commit fd5f940f authored by Andrew Bresticker's avatar Andrew Bresticker Committed by Mark Brown
Browse files

ASoC: max98090: add digital mic mux to record path 



The max98090 driver currently treats the digital mic enable as a supply
on the record path, causing the digital mic enable to always be turned on
when attempting to record.  This is incorrect, however, since the digital
mic enable is also a mux control where 0 selects the ADC output as input
to the record-path DSP and 1 selects the digital mic.  This patch adds
a virtual DMIC mux to the reocrd path so that we can switch between the
ADC and the digital mic for recording.

Signed-off-by: default avatarAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent f722406f

sound/soc/codecs/max98090.c

+18 −4
Original line number Diff line number Diff line
@@ -857,6 +857,14 @@ static const struct soc_enum mic2_mux_enum = 
static const struct snd_kcontrol_new max98090_mic2_mux =

	SOC_DAPM_ENUM("MIC2 Mux", mic2_mux_enum);



static const char *dmic_mux_text[] = { "ADC", "DMIC" };



static const struct soc_enum dmic_mux_enum =

	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(dmic_mux_text), dmic_mux_text);



static const struct snd_kcontrol_new max98090_dmic_mux =

	SOC_DAPM_ENUM_VIRT("DMIC Mux", dmic_mux_enum);



static const char *max98090_micpre_text[] = { "Off", "On" };



static const struct soc_enum max98090_pa1en_enum =
@@ -1144,6 +1152,9 @@ static const struct snd_soc_dapm_widget max98090_dapm_widgets[] = { 
	SND_SOC_DAPM_MUX("MIC2 Mux", SND_SOC_NOPM,

		0, 0, &max98090_mic2_mux),



	SND_SOC_DAPM_VIRT_MUX("DMIC Mux", SND_SOC_NOPM,

		0, 0, &max98090_dmic_mux),



	SND_SOC_DAPM_PGA_E("MIC1 Input", M98090_REG_MIC1_INPUT_LEVEL,

		M98090_MIC_PA1EN_SHIFT, 0, NULL, 0, max98090_micinput_event,

		SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
@@ -1336,11 +1347,14 @@ static const struct snd_soc_dapm_route max98090_dapm_routes[] = { 
	{"ADCL", NULL, "SHDN"},

	{"ADCR", NULL, "SHDN"},



	{"LBENL Mux", "Normal", "ADCL"},

	{"LBENL Mux", "Normal", "DMICL"},

	{"DMIC Mux", "ADC", "ADCL"},

	{"DMIC Mux", "ADC", "ADCR"},

	{"DMIC Mux", "DMIC", "DMICL"},

	{"DMIC Mux", "DMIC", "DMICR"},



	{"LBENL Mux", "Normal", "DMIC Mux"},

	{"LBENL Mux", "Loopback", "LTENL Mux"},

	{"LBENR Mux", "Normal", "ADCR"},

	{"LBENR Mux", "Normal", "DMICR"},

	{"LBENR Mux", "Normal", "DMIC Mux"},

	{"LBENR Mux", "Loopback", "LTENR Mux"},



	{"AIFOUTL", NULL, "LBENL Mux"},

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