linux-kernel - [PATCH 7/7] ASoC:cs43130: Add switch to control normal and alt hp inputs

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Date:   Fri, 17 Nov 2023 14:13:44 +0000
From:   Maciej Strozek <mstrozek@...nsource.cirrus.com>
To:     Mark Brown <broonie@...nel.org>
CC:     James Schulman <james.schulman@...rus.com>,
        David Rhodes <david.rhodes@...rus.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>,
        <linux-sound@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Maciej Strozek <mstrozek@...nsource.cirrus.com>
Subject: [PATCH 7/7] ASoC:cs43130: Add switch to control normal and alt hp inputs

Make sure these inputs are mutually exclusive as recommended by the
datasheet

Signed-off-by: Maciej Strozek <mstrozek@...nsource.cirrus.com>
---
 sound/soc/codecs/cs43130.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c
index 1e7c32eedc7b..8b77bd7fa907 100644
--- a/sound/soc/codecs/cs43130.c
+++ b/sound/soc/codecs/cs43130.c
@@ -1419,7 +1419,15 @@ static int cs43130_hpin_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
+static const char * const bypass_mux_text[] = {
+	"Internal",
+	"Alternative",
+};
+static SOC_ENUM_SINGLE_DECL(bypass_enum, SND_SOC_NOPM, 0, bypass_mux_text);
+static const struct snd_kcontrol_new bypass_ctrl = SOC_DAPM_ENUM("Switch", bypass_enum);
+
 static const struct snd_soc_dapm_widget digital_hp_widgets[] = {
+	SND_SOC_DAPM_MUX("Bypass Switch", SND_SOC_NOPM, 0, 0, &bypass_ctrl),
 	SND_SOC_DAPM_OUTPUT("HPOUTA"),
 	SND_SOC_DAPM_OUTPUT("HPOUTB"),
 
@@ -1472,13 +1480,13 @@ static const struct snd_soc_dapm_route digital_hp_routes[] = {
 	{"DSD", NULL, "XSPIN DSD"},
 	{"HiFi DAC", NULL, "ASPIN PCM"},
 	{"HiFi DAC", NULL, "DSD"},
-	{"HPOUTA", NULL, "HiFi DAC"},
-	{"HPOUTB", NULL, "HiFi DAC"},
+	{"Bypass Switch", "Internal", "HiFi DAC"},
+	{"HPOUTA", NULL, "Bypass Switch"},
+	{"HPOUTB", NULL, "Bypass Switch"},
 };
 
 static const struct snd_soc_dapm_route analog_hp_routes[] = {
-	{"HPOUTA", NULL, "Analog Playback"},
-	{"HPOUTB", NULL, "Analog Playback"},
+	{"Bypass Switch", "Alternative", "Analog Playback"},
 };
 
 static struct snd_soc_dapm_route all_hp_routes[
-- 
2.34.1