From: Richard Fitzgerald <rf@opensource.cirrus.com>
To: <broonie@kernel.org>
Cc: <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>,
<patches@opensource.cirrus.com>,
Richard Fitzgerald <rf@opensource.cirrus.com>
Subject: [PATCH 08/16] ASoC: cs42l42: Reset and power-down on driver remove()
Date: Fri, 15 Oct 2021 14:36:11 +0100 [thread overview]
Message-ID: <20211015133619.4698-9-rf@opensource.cirrus.com> (raw)
In-Reply-To: <20211015133619.4698-1-rf@opensource.cirrus.com>
Driver remove() should assert RESET and disable the supplies.
Previously this assumed that calling pm_runtime_suspend() would result
in a call to cs42l42_runtime_suspend() to power-down. This isn't
guaranteed - pm_runtime can be disabled.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 2b869e0ea598 ("ASoC: cs42l42: Remove power if the driver is being removed")
---
sound/soc/codecs/cs42l42.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index 420e16563c45..cf1f68474d21 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -2131,6 +2131,9 @@ static int cs42l42_i2c_remove(struct i2c_client *i2c_client)
pm_runtime_suspend(&i2c_client->dev);
pm_runtime_disable(&i2c_client->dev);
+ gpiod_set_value_cansleep(cs42l42->reset_gpio, 0);
+ regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), cs42l42->supplies);
+
return 0;
}
--
2.11.0
next prev parent reply other threads:[~2021-10-15 13:37 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-15 13:36 [PATCH 00/16] ASoC: cs42l42: Collection of bugfixes Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 01/16] ASoC: cs42l42: Don't reconfigure the PLL while it is running Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 02/16] ASoC: cs42l42: Always configure both ASP TX channels Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 03/16] ASoC: cs42l42: Correct some register default values Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 04/16] ASoC: cs42l42: Don't set defaults for volatile registers Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 05/16] ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 06/16] ASoC: cs42l42: Reset GPIO is mandatory Richard Fitzgerald
2021-10-15 14:30 ` Mark Brown
2021-10-15 13:36 ` [PATCH 07/16] ASoC: cs42l42: Correct power-up sequence to match datasheet Richard Fitzgerald
2021-10-15 15:02 ` Mark Brown
2021-10-15 13:36 ` Richard Fitzgerald [this message]
2021-10-15 15:04 ` [PATCH 08/16] ASoC: cs42l42: Reset and power-down on driver remove() Mark Brown
2021-10-15 13:36 ` [PATCH 09/16] ASoC: cs42l42: Prevent NULL pointer deref in interrupt handler Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 10/16] ASoC: cs42l42: Don't claim to support 192k Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 11/16] ASoC: cs42l42: Use PLL for SCLK > 12.288MHz Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 12/16] ASoC: cs42l42: Allow time for HP/ADC to power-up after enable Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 13/16] ASoC: cs42l42: Set correct SRC MCLK Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 14/16] ASoC: cs42l42: Mark OSC_SWITCH_STATUS register volatile Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 15/16] ASoC: cs42l42: Fix WARN in remove() if running without an interrupt Richard Fitzgerald
2021-10-15 13:36 ` [PATCH 16/16] ASoC: cs42l42: Always enable TS_PLUG and TS_UNPLUG interrupts Richard Fitzgerald
2021-10-15 19:42 ` (subset) [PATCH 00/16] ASoC: cs42l42: Collection of bugfixes Mark Brown
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