From: Lucas Tanure <tanureal@opensource.cirrus.com>
To: James Schulman <james.schulman@cirrus.com>,
David Rhodes <david.rhodes@cirrus.com>,
Mark Brown <broonie@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>
Cc: Richard Fitzgerald <rf@opensource.cirrus.com>,
<alsa-devel@alsa-project.org>, <patches@opensource.cirrus.com>,
Lucas Tanure <tanureal@opensource.cirrus.com>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 02/15] ASoC: cs42l42: Always wait at least 3ms after reset
Date: Tue, 2 Mar 2021 17:04:41 +0000 [thread overview]
Message-ID: <20210302170454.39679-3-tanureal@opensource.cirrus.com> (raw)
In-Reply-To: <20210302170454.39679-1-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>
---
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 caae05b1729e9..2a25a30f842b1 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1763,7 +1763,7 @@ 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,
@@ -1888,6 +1888,7 @@ 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 9e3cc528dcff0..6a500d0146a28 100644
--- a/sound/soc/codecs/cs42l42.h
+++ b/sound/soc/codecs/cs42l42.h
@@ -739,6 +739,7 @@
#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
next prev parent reply other threads:[~2021-03-02 20:30 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 17:04 [PATCH 00/15] Report jack and button detection + Capture Support Lucas Tanure
2021-03-02 17:04 ` [PATCH 01/15] ASoC: cs42l42: Don't enable/disable regulator at Bias Level Lucas Tanure
2021-03-02 17:04 ` Lucas Tanure [this message]
2021-03-02 17:04 ` [PATCH 03/15] ASoC: cs42l42: Remove power if the driver is being removed Lucas Tanure
2021-03-02 17:12 ` Mark Brown
2021-03-02 17:04 ` [PATCH 04/15] ASoC: cs42l42: Disable regulators if probe fails Lucas Tanure
2021-03-02 17:04 ` [PATCH 05/15] ASoC: cs42l42: Fix Bitclock polarity inversion Lucas Tanure
2021-03-02 17:15 ` Mark Brown
2021-03-02 17:04 ` [PATCH 06/15] ASoC: cs42l42: Provide finer control on playback path Lucas Tanure
2021-03-02 17:04 ` [PATCH 07/15] ASoC: cs42l42: Set clock source for both ways of stream Lucas Tanure
2021-03-03 0:02 ` kernel test robot
2021-03-02 17:04 ` [PATCH 08/15] ASoC: cs42l42: Fix channel width support Lucas Tanure
2021-03-02 17:20 ` Mark Brown
2021-03-02 17:04 ` [PATCH 09/15] ASoC: cs42l42: Add Capture Support Lucas Tanure
2021-03-02 17:04 ` [PATCH 10/15] ASoC: cs42l42: Report jack and button detection Lucas Tanure
2021-03-02 17:29 ` Mark Brown
2021-03-02 17:04 ` [PATCH 11/15] ASoC: cs42l42: Use bclk from hw_params if set_sysclk was not called Lucas Tanure
2021-03-02 17:04 ` [PATCH 12/15] ASoC: cs42l42: Wait at least 150us after writing SCLK_PRESENT Lucas Tanure
2021-03-02 17:30 ` Mark Brown
2021-03-02 22:56 ` kernel test robot
2021-03-02 22:56 ` [PATCH] ASoC: cs42l42: fix semicolon.cocci warnings kernel test robot
2021-03-02 17:04 ` [PATCH 13/15] ASoC: cs42l42: Only start PLL if it is needed Lucas Tanure
2021-03-02 17:04 ` [PATCH 14/15] ASoC: cs42l42: Wait for PLL to lock before switching to it Lucas Tanure
2021-03-02 17:04 ` [PATCH 15/15] ASoC: cs42l42: Fix mixer volume control Lucas Tanure
2021-03-02 17:30 ` Mark Brown
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