From: Artur Weber <aweber.kernel@gmail.com>
To: Sylwester Nawrocki <s.nawrocki@samsung.com>,
Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Alim Akhtar <alim.akhtar@samsung.com>,
alsa-devel@alsa-project.org, linux-sound@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org,
~postmarketos/upstreaming@lists.sr.ht,
Artur Weber <aweber.kernel@gmail.com>
Subject: [PATCH v2 3/7] ASoC: samsung: midas_wm1811: Add headset mic bias supply support
Date: Wed, 08 May 2024 12:58:51 +0200 [thread overview]
Message-ID: <20240508-midas-wm1811-gpio-jack-v2-3-b4d36cd02c6e@gmail.com> (raw)
In-Reply-To: <20240508-midas-wm1811-gpio-jack-v2-0-b4d36cd02c6e@gmail.com>
Some devices use a headset mic bias supply (sometimes referred to as
"ear mic bias") to enable/disable the headset mic.
Add support for getting the supply from DT and setting it up
accordingly to the value of the Headset Mic switch.
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
---
Changes in v2:
- Added this commit
---
sound/soc/samsung/midas_wm1811.c | 33 ++++++++++++++++++++++++++++++++-
1 file changed, 32 insertions(+), 1 deletion(-)
diff --git a/sound/soc/samsung/midas_wm1811.c b/sound/soc/samsung/midas_wm1811.c
index f31244156ff6..ab0a4804b45e 100644
--- a/sound/soc/samsung/midas_wm1811.c
+++ b/sound/soc/samsung/midas_wm1811.c
@@ -29,6 +29,7 @@
struct midas_priv {
struct regulator *reg_mic_bias;
struct regulator *reg_submic_bias;
+ struct regulator *reg_headset_mic_bias;
struct gpio_desc *gpio_fm_sel;
struct gpio_desc *gpio_lineout_sel;
unsigned int fll1_rate;
@@ -201,6 +202,25 @@ static int midas_submic_bias(struct snd_soc_dapm_widget *w,
return 0;
}
+static int midas_headset_mic_bias(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_card *card = w->dapm->card;
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+
+ if (!priv->reg_headset_mic_bias)
+ return 0;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ return regulator_enable(priv->reg_headset_mic_bias);
+ case SND_SOC_DAPM_POST_PMD:
+ return regulator_disable(priv->reg_headset_mic_bias);
+ }
+
+ return 0;
+}
+
static int midas_fm_set(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
@@ -271,7 +291,7 @@ static const struct snd_soc_dapm_widget midas_dapm_widgets[] = {
SND_SOC_DAPM_LINE("FM In", midas_fm_set),
SND_SOC_DAPM_HP("Headphone", NULL),
- SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", midas_headset_mic_bias),
SND_SOC_DAPM_MIC("Main Mic", midas_mic_bias),
SND_SOC_DAPM_MIC("Sub Mic", midas_submic_bias),
};
@@ -455,6 +475,17 @@ static int midas_probe(struct platform_device *pdev)
return PTR_ERR(priv->reg_submic_bias);
}
+ priv->reg_headset_mic_bias = devm_regulator_get_optional(dev,
+ "headset-mic-bias");
+ if (IS_ERR(priv->reg_headset_mic_bias)) {
+ ret = PTR_ERR(priv->reg_headset_mic_bias);
+ if (ret == -ENODEV)
+ priv->reg_headset_mic_bias = NULL;
+ else
+ return dev_err_probe(dev, ret,
+ "Failed to get headset mic bias regulator\n");
+ }
+
priv->gpio_fm_sel = devm_gpiod_get_optional(dev, "fm-sel", GPIOD_OUT_HIGH);
if (IS_ERR(priv->gpio_fm_sel)) {
dev_err(dev, "Failed to get FM selection GPIO\n");
--
2.45.0
next prev parent reply other threads:[~2024-05-08 11:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-08 10:58 [PATCH v2 0/7] ASoC: samsung: midas-audio: Add GPIO-based headset jack detection Artur Weber
2024-05-08 10:58 ` [PATCH v2 1/7] ASoC: dt-bindings: samsung,midas-audio: Add headset mic bias supply Artur Weber
2024-05-08 10:58 ` [PATCH v2 2/7] ASoC: dt-bindings: samsung,midas-audio: Add GPIO-based headset jack detection Artur Weber
2024-05-08 12:52 ` Rob Herring (Arm)
2024-05-08 10:58 ` Artur Weber [this message]
2024-05-08 10:58 ` [PATCH v2 4/7] ASoC: samsung: midas_wm1811: " Artur Weber
2024-05-08 10:58 ` [PATCH v2 5/7] ASoC: samsung: midas_wm1811: Use dev_err_probe where appropriate Artur Weber
2024-05-08 10:58 ` [PATCH v2 6/7] ARM: dts: samsung: exynos4212-tab3: Fix headset mic, add jack detection Artur Weber
2024-05-08 10:58 ` [PATCH v2 7/7] ARM: dts: samsung: exynos4212-tab3: Fix up wm1811 codec config Artur Weber
2024-05-09 7:13 ` Krzysztof Kozlowski
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