From: Olivier Moysan <olivier.moysan@st.com>
To: <lgirdwood@gmail.com>, <broonie@kernel.org>, <perex@perex.cz>,
<tiwai@suse.com>, <mcoquelin.stm32@gmail.com>,
<alexandre.torgue@st.com>, <alsa-devel@alsa-project.org>,
<robh@kernel.org>, <mark.rutland@arm.com>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-kernel@vger.kernel.org>, <olivier.moysan@st.com>,
<arnaud.pouliquen@st.com>, <benjamin.gaignard@st.com>,
<apatard@mandriva.com>
Subject: [PATCH 3/7] ASoC: cs42l51: add reset management
Date: Wed, 3 Apr 2019 15:23:33 +0200 [thread overview]
Message-ID: <1554297817-14154-4-git-send-email-olivier.moysan@st.com> (raw)
In-Reply-To: <1554297817-14154-1-git-send-email-olivier.moysan@st.com>
Manage cs42l51 audio codec reset pin.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
---
sound/soc/codecs/cs42l51.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/sound/soc/codecs/cs42l51.c b/sound/soc/codecs/cs42l51.c
index f43eb51d2d8d..9b3ffa16b204 100644
--- a/sound/soc/codecs/cs42l51.c
+++ b/sound/soc/codecs/cs42l51.c
@@ -30,6 +30,7 @@
#include <sound/initval.h>
#include <sound/pcm_params.h>
#include <sound/pcm.h>
+#include <linux/gpio/consumer.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
@@ -54,6 +55,7 @@ struct cs42l51_private {
unsigned int audio_mode; /* The mode (I2S or left-justified) */
enum master_slave_mode func;
struct regulator_bulk_data supplies[ARRAY_SIZE(cs42l51_supply_names)];
+ struct gpio_desc *reset_gpio;
};
#define CS42L51_FORMATS ( \
@@ -595,6 +597,17 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap)
return ret;
}
+ cs42l51->reset_gpio = devm_gpiod_get_optional(dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(cs42l51->reset_gpio))
+ return PTR_ERR(cs42l51->reset_gpio);
+
+ if (cs42l51->reset_gpio) {
+ dev_dbg(dev, "Release reset gpio\n");
+ gpiod_set_value_cansleep(cs42l51->reset_gpio, 0);
+ mdelay(2);
+ }
+
/* Verify that we have a CS42L51 */
ret = regmap_read(regmap, CS42L51_CHIP_REV_ID, &val);
if (ret < 0) {
@@ -629,6 +642,8 @@ int cs42l51_remove(struct device *dev)
{
struct cs42l51_private *cs42l51 = dev_get_drvdata(dev);
+ gpiod_set_value_cansleep(cs42l51->reset_gpio, 1);
+
return regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies),
cs42l51->supplies);
}
--
2.7.4
next prev parent reply other threads:[~2019-04-03 13:26 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-03 13:23 [PATCH 0/7] ASoC: cs42l51: add some features Olivier Moysan
2019-04-03 13:23 ` [PATCH 1/7] ASoC: dt-bindings: update cs42l51 bindings Olivier Moysan
2019-04-04 13:58 ` Applied "ASoC: dt-bindings: update cs42l51 bindings" to the asoc tree Mark Brown
2019-04-03 13:23 ` [PATCH 2/7] ASoC: cs42l51: add regulator management Olivier Moysan
2019-04-04 13:58 ` Applied "ASoC: cs42l51: add regulator management" to the asoc tree Mark Brown
2019-04-03 13:23 ` Olivier Moysan [this message]
2019-04-04 13:58 ` Applied "ASoC: cs42l51: add reset " Mark Brown
2019-04-03 13:23 ` [PATCH 4/7] ASoC: cs42l51: add support of master mode Olivier Moysan
2019-04-04 13:58 ` Applied "ASoC: cs42l51: add support of master mode" to the asoc tree Mark Brown
2019-04-03 13:23 ` [PATCH 5/7] ASoC: cs42l51: change mic bias DAPM Olivier Moysan
2019-04-04 5:47 ` Mark Brown
2019-04-04 13:35 ` Olivier MOYSAN
2019-04-05 3:26 ` Applied "ASoC: cs42l51: change mic bias DAPM" to the asoc tree Mark Brown
2019-04-03 13:23 ` [PATCH 6/7] ASoC: cs42l51: add power management Olivier Moysan
2019-04-04 13:58 ` Applied "ASoC: cs42l51: add power management" to the asoc tree Mark Brown
2019-04-03 13:23 ` [PATCH 7/7] ASoC: cs42l51: add adc volume control Olivier Moysan
2019-04-04 13:58 ` Applied "ASoC: cs42l51: add adc volume control" to the asoc tree Mark Brown
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