From: Gustavo Silva <gustavograzs@gmail.com>
To: jic23@kernel.org
Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
lars@metafoo.de, christophe.jaillet@wanadoo.fr,
gerald.loacker@wolfvision.net, devicetree@vger.kernel.org,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 5/6] iio: chemical: ens160: add power management support
Date: Sun, 12 May 2024 18:04:41 -0300 [thread overview]
Message-ID: <20240512210444.30824-6-gustavograzs@gmail.com> (raw)
In-Reply-To: <20240512210444.30824-1-gustavograzs@gmail.com>
ENS160 supports a deep sleep mode for minimal power consumption.
Use it to add PM sleep capability to the driver.
Signed-off-by: Gustavo Silva <gustavograzs@gmail.com>
---
drivers/iio/chemical/ens160.h | 2 ++
drivers/iio/chemical/ens160_core.c | 23 +++++++++++++++++++++++
drivers/iio/chemical/ens160_i2c.c | 1 +
drivers/iio/chemical/ens160_spi.c | 1 +
4 files changed, 27 insertions(+)
diff --git a/drivers/iio/chemical/ens160.h b/drivers/iio/chemical/ens160.h
index a8a2f1263..9ed532615 100644
--- a/drivers/iio/chemical/ens160.h
+++ b/drivers/iio/chemical/ens160.h
@@ -6,4 +6,6 @@ int ens160_core_probe(struct device *dev, struct regmap *regmap, int irq,
const char *name);
void ens160_core_remove(struct device *dev);
+extern const struct dev_pm_ops ens160_pm_ops;
+
#endif
diff --git a/drivers/iio/chemical/ens160_core.c b/drivers/iio/chemical/ens160_core.c
index 4b960ef00..a444034a4 100644
--- a/drivers/iio/chemical/ens160_core.c
+++ b/drivers/iio/chemical/ens160_core.c
@@ -220,6 +220,29 @@ static const struct iio_info ens160_info = {
.read_raw = ens160_read_raw,
};
+static int ens160_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ens160_data *data = iio_priv(indio_dev);
+
+ return ens160_set_mode(data, ENS160_REG_MODE_DEEP_SLEEP);
+}
+
+static int ens160_resume(struct device *dev)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ens160_data *data = iio_priv(indio_dev);
+ int ret;
+
+ ret = ens160_set_mode(data, ENS160_REG_MODE_IDLE);
+ if (ret)
+ return ret;
+
+ return ens160_set_mode(data, ENS160_REG_MODE_STANDARD);
+}
+EXPORT_NS_SIMPLE_DEV_PM_OPS(ens160_pm_ops, ens160_suspend, ens160_resume,
+ IIO_ENS160);
+
static irqreturn_t ens160_irq_handler(int irq, void *private)
{
struct iio_dev *indio_dev = private;
diff --git a/drivers/iio/chemical/ens160_i2c.c b/drivers/iio/chemical/ens160_i2c.c
index 28d4988c0..b8785d199 100644
--- a/drivers/iio/chemical/ens160_i2c.c
+++ b/drivers/iio/chemical/ens160_i2c.c
@@ -55,6 +55,7 @@ static struct i2c_driver ens160_i2c_driver = {
.driver = {
.name = "ens160_i2c",
.of_match_table = ens160_of_i2c_match,
+ .pm = pm_sleep_ptr(&ens160_pm_ops),
},
.probe = ens160_i2c_probe,
.remove = ens160_i2c_remove,
diff --git a/drivers/iio/chemical/ens160_spi.c b/drivers/iio/chemical/ens160_spi.c
index 568b9761d..2cf494032 100644
--- a/drivers/iio/chemical/ens160_spi.c
+++ b/drivers/iio/chemical/ens160_spi.c
@@ -56,6 +56,7 @@ static struct spi_driver ens160_spi_driver = {
.driver = {
.name = "ens160_spi",
.of_match_table = ens160_spi_of_match,
+ .pm = pm_sleep_ptr(&ens160_pm_ops),
},
.probe = ens160_spi_probe,
.remove = ens160_spi_remove,
--
2.45.0
next prev parent reply other threads:[~2024-05-12 21:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-12 21:04 [PATCH 0/6] Add driver for ENS160 sensor Gustavo Silva
2024-05-12 21:04 ` [PATCH 1/6] dt-bindings: vendor-prefixes: add ScioSense Gustavo Silva
2024-05-13 16:02 ` Conor Dooley
2024-05-12 21:04 ` [PATCH 2/6] dt-bindings: Add ENS160 as trivial device Gustavo Silva
2024-05-13 16:09 ` Conor Dooley
2024-05-19 12:33 ` Jonathan Cameron
2024-05-12 21:04 ` [PATCH 3/6] iio: chemical: add driver for ENS160 sensor Gustavo Silva
2024-05-13 19:12 ` Christophe JAILLET
2024-05-19 13:24 ` Jonathan Cameron
2024-05-22 23:41 ` Gustavo Silva
2024-05-19 14:01 ` Jonathan Cameron
2024-05-26 0:29 ` Gustavo Silva
2024-05-26 12:20 ` Jonathan Cameron
2024-05-12 21:04 ` [PATCH 4/6] iio: chemical: ens160: add triggered buffer support Gustavo Silva
2024-05-13 19:13 ` Christophe JAILLET
2024-05-19 14:03 ` Jonathan Cameron
2024-05-20 6:50 ` Christophe JAILLET
2024-05-13 23:50 ` kernel test robot
2024-05-19 14:18 ` Jonathan Cameron
2024-05-12 21:04 ` Gustavo Silva [this message]
2024-05-19 14:18 ` [PATCH 5/6] iio: chemical: ens160: add power management support Jonathan Cameron
2024-05-12 21:04 ` [PATCH 6/6] MAINTAINERS: Add ScioSense ENS160 Gustavo Silva
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