From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Derek Fang <derek.fang@realtek.com>,
Mark Brown <broonie@kernel.org>, Sasha Levin <sashal@kernel.org>,
oder_chiou@realtek.com, lgirdwood@gmail.com, perex@perex.cz,
tiwai@suse.com, linux-sound@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 1/9] ASoC: rt5645: Fix the electric noise due to the CBJ contacts floating
Date: Tue, 7 May 2024 19:13:56 -0400 [thread overview]
Message-ID: <20240507231406.395123-1-sashal@kernel.org> (raw)
From: Derek Fang <derek.fang@realtek.com>
[ Upstream commit 103abab975087e1f01b76fcb54c91dbb65dbc249 ]
The codec leaves tie combo jack's sleeve/ring2 to floating status
default. It would cause electric noise while connecting the active
speaker jack during boot or shutdown.
This patch requests a gpio to control the additional jack circuit
to tie the contacts to the ground or floating.
Signed-off-by: Derek Fang <derek.fang@realtek.com>
Link: https://msgid.link/r/20240408091057.14165-1-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt5645.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 5db63ef33f1a2..ac403827a2290 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -414,6 +414,7 @@ struct rt5645_priv {
struct regmap *regmap;
struct i2c_client *i2c;
struct gpio_desc *gpiod_hp_det;
+ struct gpio_desc *gpiod_cbj_sleeve;
struct snd_soc_jack *hp_jack;
struct snd_soc_jack *mic_jack;
struct snd_soc_jack *btn_jack;
@@ -3169,6 +3170,9 @@ static int rt5645_jack_detect(struct snd_soc_component *component, int jack_inse
regmap_update_bits(rt5645->regmap, RT5645_IN1_CTRL2,
RT5645_CBJ_MN_JD, 0);
+ if (rt5645->gpiod_cbj_sleeve)
+ gpiod_set_value(rt5645->gpiod_cbj_sleeve, 1);
+
msleep(600);
regmap_read(rt5645->regmap, RT5645_IN1_CTRL3, &val);
val &= 0x7;
@@ -3185,6 +3189,8 @@ static int rt5645_jack_detect(struct snd_soc_component *component, int jack_inse
snd_soc_dapm_disable_pin(dapm, "Mic Det Power");
snd_soc_dapm_sync(dapm);
rt5645->jack_type = SND_JACK_HEADPHONE;
+ if (rt5645->gpiod_cbj_sleeve)
+ gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0);
}
if (rt5645->pdata.level_trigger_irq)
regmap_update_bits(rt5645->regmap, RT5645_IRQ_CTRL2,
@@ -3210,6 +3216,9 @@ static int rt5645_jack_detect(struct snd_soc_component *component, int jack_inse
if (rt5645->pdata.level_trigger_irq)
regmap_update_bits(rt5645->regmap, RT5645_IRQ_CTRL2,
RT5645_JD_1_1_MASK, RT5645_JD_1_1_INV);
+
+ if (rt5645->gpiod_cbj_sleeve)
+ gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0);
}
return rt5645->jack_type;
@@ -3882,6 +3891,16 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
return ret;
}
+ rt5645->gpiod_cbj_sleeve = devm_gpiod_get_optional(&i2c->dev, "cbj-sleeve",
+ GPIOD_OUT_LOW);
+
+ if (IS_ERR(rt5645->gpiod_cbj_sleeve)) {
+ ret = PTR_ERR(rt5645->gpiod_cbj_sleeve);
+ dev_info(&i2c->dev, "failed to initialize gpiod, ret=%d\n", ret);
+ if (ret != -ENOENT)
+ return ret;
+ }
+
for (i = 0; i < ARRAY_SIZE(rt5645->supplies); i++)
rt5645->supplies[i].supply = rt5645_supply_names[i];
@@ -4125,6 +4144,9 @@ static int rt5645_i2c_remove(struct i2c_client *i2c)
cancel_delayed_work_sync(&rt5645->jack_detect_work);
cancel_delayed_work_sync(&rt5645->rcclock_work);
+ if (rt5645->gpiod_cbj_sleeve)
+ gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0);
+
regulator_bulk_disable(ARRAY_SIZE(rt5645->supplies), rt5645->supplies);
return 0;
@@ -4142,6 +4164,9 @@ static void rt5645_i2c_shutdown(struct i2c_client *i2c)
0);
msleep(20);
regmap_write(rt5645->regmap, RT5645_RESET, 0);
+
+ if (rt5645->gpiod_cbj_sleeve)
+ gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0);
}
static struct i2c_driver rt5645_i2c_driver = {
--
2.43.0
next reply other threads:[~2024-05-07 23:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 23:13 Sasha Levin [this message]
2024-05-07 23:13 ` [PATCH AUTOSEL 5.10 2/9] ASoC: dt-bindings: rt5645: add cbj sleeve gpio property Sasha Levin
2024-05-07 23:13 ` [PATCH AUTOSEL 5.10 3/9] regulator: vqmmc-ipq4019: fix module autoloading Sasha Levin
2024-05-07 23:13 ` [PATCH AUTOSEL 5.10 4/9] ASoC: rt715: add vendor clear control register Sasha Levin
2024-05-07 23:14 ` [PATCH AUTOSEL 5.10 5/9] net: qede: sanitize 'rc' in qede_add_tc_flower_fltr() Sasha Levin
2024-05-13 8:18 ` Pavel Machek
2024-05-13 9:46 ` Asbjørn Sloth Tønnesen
2024-05-22 12:57 ` Sasha Levin
2024-05-07 23:14 ` [PATCH AUTOSEL 5.10 6/9] firewire: nosy: ensure user_length is taken into account when fetching packet contents Sasha Levin
2024-05-07 23:14 ` [PATCH AUTOSEL 5.10 7/9] ASoC: da7219-aad: fix usage of device_get_named_child_node() Sasha Levin
2024-05-07 23:14 ` [PATCH AUTOSEL 5.10 8/9] drm/amdkfd: Flush the process wq before creating a kfd_process Sasha Levin
2024-05-07 23:14 ` [PATCH AUTOSEL 5.10 9/9] nvme: find numa distance only if controller has valid numa id Sasha Levin
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