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From: Lucas Tanure <tanureal@opensource.cirrus.com>
To: James Schulman <james.schulman@cirrus.com>,
	David Rhodes <david.rhodes@cirrus.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>
Cc: Richard Fitzgerald <rf@opensource.cirrus.com>,
	<alsa-devel@alsa-project.org>, <patches@opensource.cirrus.com>,
	<linux-kernel@vger.kernel.org>,
	Lucas Tanure <tanureal@opensource.cirrus.com>
Subject: [PATCH v2 05/15] ASoC: cs42l42: Always wait at least 3ms after reset
Date: Fri, 5 Mar 2021 17:34:32 +0000	[thread overview]
Message-ID: <20210305173442.195740-6-tanureal@opensource.cirrus.com> (raw)
In-Reply-To: <20210305173442.195740-1-tanureal@opensource.cirrus.com>

This delay is part of the power-up sequence defined in the datasheet.
A runtime_resume is a power-up so must also include the delay.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
---
Changes in v2:
- No changes

 sound/soc/codecs/cs42l42.c | 3 ++-
 sound/soc/codecs/cs42l42.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index eee3fc3200308..811b7b1c9732e 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1756,7 +1756,7 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 		dev_dbg(&i2c_client->dev, "Found reset GPIO\n");
 		gpiod_set_value_cansleep(cs42l42->reset_gpio, 1);
 	}
-	mdelay(3);
+	usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2);
 
 	/* Request IRQ */
 	ret = devm_request_threaded_irq(&i2c_client->dev,
@@ -1881,6 +1881,7 @@ static int cs42l42_runtime_resume(struct device *dev)
 	}
 
 	gpiod_set_value_cansleep(cs42l42->reset_gpio, 1);
+	usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2);
 
 	regcache_cache_only(cs42l42->regmap, false);
 	regcache_sync(cs42l42->regmap);
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h
index 9b017b76828a4..866d7c873e3c9 100644
--- a/sound/soc/codecs/cs42l42.h
+++ b/sound/soc/codecs/cs42l42.h
@@ -740,6 +740,7 @@
 #define CS42L42_FRAC2_VAL(val)	(((val) & 0xff0000) >> 16)
 
 #define CS42L42_NUM_SUPPLIES	5
+#define CS42L42_BOOT_TIME_US	3000
 
 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = {
 	"VA",
-- 
2.30.1


WARNING: multiple messages have this Message-ID (diff)
From: Lucas Tanure <tanureal@opensource.cirrus.com>
To: James Schulman <james.schulman@cirrus.com>,
	David Rhodes <david.rhodes@cirrus.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>
Cc: patches@opensource.cirrus.com,
	Richard Fitzgerald <rf@opensource.cirrus.com>,
	alsa-devel@alsa-project.org,
	Lucas Tanure <tanureal@opensource.cirrus.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 05/15] ASoC: cs42l42: Always wait at least 3ms after reset
Date: Fri, 5 Mar 2021 17:34:32 +0000	[thread overview]
Message-ID: <20210305173442.195740-6-tanureal@opensource.cirrus.com> (raw)
In-Reply-To: <20210305173442.195740-1-tanureal@opensource.cirrus.com>

This delay is part of the power-up sequence defined in the datasheet.
A runtime_resume is a power-up so must also include the delay.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
---
Changes in v2:
- No changes

 sound/soc/codecs/cs42l42.c | 3 ++-
 sound/soc/codecs/cs42l42.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index eee3fc3200308..811b7b1c9732e 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1756,7 +1756,7 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 		dev_dbg(&i2c_client->dev, "Found reset GPIO\n");
 		gpiod_set_value_cansleep(cs42l42->reset_gpio, 1);
 	}
-	mdelay(3);
+	usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2);
 
 	/* Request IRQ */
 	ret = devm_request_threaded_irq(&i2c_client->dev,
@@ -1881,6 +1881,7 @@ static int cs42l42_runtime_resume(struct device *dev)
 	}
 
 	gpiod_set_value_cansleep(cs42l42->reset_gpio, 1);
+	usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2);
 
 	regcache_cache_only(cs42l42->regmap, false);
 	regcache_sync(cs42l42->regmap);
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h
index 9b017b76828a4..866d7c873e3c9 100644
--- a/sound/soc/codecs/cs42l42.h
+++ b/sound/soc/codecs/cs42l42.h
@@ -740,6 +740,7 @@
 #define CS42L42_FRAC2_VAL(val)	(((val) & 0xff0000) >> 16)
 
 #define CS42L42_NUM_SUPPLIES	5
+#define CS42L42_BOOT_TIME_US	3000
 
 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = {
 	"VA",
-- 
2.30.1


  parent reply	other threads:[~2021-03-05 17:35 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-05 17:34 [PATCH v2 00/15] Report jack and button detection + Capture Support Lucas Tanure
2021-03-05 17:34 ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 01/15] ASoC: cs42l42: Fix Bitclock polarity inversion Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 02/15] ASoC: cs42l42: Fix channel width support Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 03/15] ASoC: cs42l42: Fix mixer volume control Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 04/15] ASoC: cs42l42: Don't enable/disable regulator at Bias Level Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` Lucas Tanure [this message]
2021-03-05 17:34   ` [PATCH v2 05/15] ASoC: cs42l42: Always wait at least 3ms after reset Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 06/15] ASoC: cs42l42: Remove power if the driver is being removed Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 18:49   ` Mark Brown
2021-03-05 18:49     ` Mark Brown
2021-03-05 17:34 ` [PATCH v2 07/15] ASoC: cs42l42: Disable regulators if probe fails Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 08/15] ASoC: cs42l42: Provide finer control on playback path Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 09/15] ASoC: cs42l42: Set clock source for both ways of stream Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 10/15] ASoC: cs42l42: Add Capture Support Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 11/15] ASoC: cs42l42: Report jack and button detection Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 12/15] ASoC: cs42l42: Use bclk from hw_params if set_sysclk was not called Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 13/15] ASoC: cs42l42: Wait at least 150us after writing SCLK_PRESENT Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 14/15] ASoC: cs42l42: Only start PLL if it is needed Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-05 17:34 ` [PATCH v2 15/15] ASoC: cs42l42: Wait for PLL to lock before switching to it Lucas Tanure
2021-03-05 17:34   ` Lucas Tanure
2021-03-08 16:06 ` (subset) [PATCH v2 00/15] Report jack and button detection + Capture Support Mark Brown
2021-03-08 16:06   ` Mark Brown

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