[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20250505225634.2688578-77-sashal@kernel.org>
Date: Mon, 5 May 2025 18:52:57 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Cc: Ryan Walklin <ryan@...ttoast.com>,
Chris Morgan <macromorgan@...mail.com>,
Philippe Simons <simons.philippe@...il.com>,
Mark Brown <broonie@...nel.org>,
Sasha Levin <sashal@...nel.org>,
lgirdwood@...il.com,
perex@...ex.cz,
tiwai@...e.com,
wens@...e.org,
jernej.skrabec@...il.com,
samuel@...lland.org,
csokas.bence@...lan.hu,
mesihkilinc@...il.com,
andre.przywara@....com,
codekipper@...il.com,
jbrunet@...libre.com,
linux-sound@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-sunxi@...ts.linux.dev
Subject: [PATCH AUTOSEL 6.6 077/294] ASoC: sun4i-codec: support hp-det-gpios property
From: Ryan Walklin <ryan@...ttoast.com>
[ Upstream commit a149377c033afe6557c50892ebbfc0e8b7e2e253 ]
Add support for GPIO headphone detection with the hp-det-gpios
property. In order for this to properly disable the path upon
removal of headphones, the output must be labelled Headphone which
is a common sink in the driver.
Describe a headphone jack and detection GPIO in the driver, check for
a corresponding device tree node, and enable jack detection in a new
machine init function if described.
Signed-off-by: Chris Morgan <macromorgan@...mail.com>
Signed-off-by: Ryan Walklin <ryan@...ttoast.com>
--
Changelog v1..v2:
- Separate DAPM changes into separate patch and add rationale.
Tested-by: Philippe Simons <simons.philippe@...il.com>
Link: https://patch.msgid.link/20250214220247.10810-4-ryan@testtoast.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
sound/soc/sunxi/sun4i-codec.c | 53 +++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index f0a5fd9011018..0d7758cc84c63 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -25,6 +25,7 @@
#include <linux/gpio/consumer.h>
#include <sound/core.h>
+#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
@@ -239,6 +240,7 @@ struct sun4i_codec {
struct clk *clk_module;
struct reset_control *rst;
struct gpio_desc *gpio_pa;
+ struct gpio_desc *gpio_hp;
/* ADC_FIFOC register is at different offset on different SoCs */
struct regmap_field *reg_adc_fifoc;
@@ -1277,6 +1279,49 @@ static struct snd_soc_dai_driver dummy_cpu_dai = {
.ops = &dummy_dai_ops,
};
+static struct snd_soc_jack sun4i_headphone_jack;
+
+static struct snd_soc_jack_pin sun4i_headphone_jack_pins[] = {
+ { .pin = "Headphone", .mask = SND_JACK_HEADPHONE },
+};
+
+static struct snd_soc_jack_gpio sun4i_headphone_jack_gpio = {
+ .name = "hp-det",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 150,
+};
+
+static int sun4i_codec_machine_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_card *card = rtd->card;
+ struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ if (scodec->gpio_hp) {
+ ret = snd_soc_card_jack_new_pins(card, "Headphone Jack",
+ SND_JACK_HEADPHONE,
+ &sun4i_headphone_jack,
+ sun4i_headphone_jack_pins,
+ ARRAY_SIZE(sun4i_headphone_jack_pins));
+ if (ret) {
+ dev_err(rtd->dev,
+ "Headphone jack creation failed: %d\n", ret);
+ return ret;
+ }
+
+ sun4i_headphone_jack_gpio.desc = scodec->gpio_hp;
+ ret = snd_soc_jack_add_gpios(&sun4i_headphone_jack, 1,
+ &sun4i_headphone_jack_gpio);
+
+ if (ret) {
+ dev_err(rtd->dev, "Headphone GPIO not added: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev,
int *num_links)
{
@@ -1302,6 +1347,7 @@ static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev,
link->codecs->name = dev_name(dev);
link->platforms->name = dev_name(dev);
link->dai_fmt = SND_SOC_DAIFMT_I2S;
+ link->init = sun4i_codec_machine_init;
*num_links = 1;
@@ -1742,6 +1788,13 @@ static int sun4i_codec_probe(struct platform_device *pdev)
return ret;
}
+ scodec->gpio_hp = devm_gpiod_get_optional(&pdev->dev, "hp-det", GPIOD_IN);
+ if (IS_ERR(scodec->gpio_hp)) {
+ ret = PTR_ERR(scodec->gpio_hp);
+ dev_err_probe(&pdev->dev, ret, "Failed to get hp-det gpio\n");
+ return ret;
+ }
+
/* reg_field setup */
scodec->reg_adc_fifoc = devm_regmap_field_alloc(&pdev->dev,
scodec->regmap,
--
2.39.5
Powered by blists - more mailing lists