iio: bmi160: suspend and resume triggering on relevant pm operations

Prevent triggers from stop working after the device has entered sleep:
use iio_device_suspend_triggering and iio_device_resume_triggering helpers.

Closes: https://lore.kernel.org/all/31d7f7aa-e834-4fd0-a66a-e0ff528425dc@gmail.com
Signed-off-by: Denis Benato <benato.denis96@gmail.com>
Link: https://patch.msgid.link/20250525142530.71955-3-benato.denis96@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/imu/bmi160/bmi160.h b/drivers/iio/imu/bmi160/bmi160.h
index 32c2ea2d71129ab8a465abaf09f3b2b1c278f310..ffbe8205e7032ecf2df4e9de303e7703b3044879 100644 (file)
--- a/drivers/iio/imu/bmi160/bmi160.h
+++ b/drivers/iio/imu/bmi160/bmi160.h
@@ -28,4 +28,6 @@ int bmi160_enable_irq(struct regmap *regmap, bool enable);
 
 int bmi160_probe_trigger(struct iio_dev *indio_dev, int irq, u32 irq_type);
 
+extern const struct dev_pm_ops bmi160_core_pm_ops;
+
 #endif  /* BMI160_H_ */

diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
index 0423ef6f9571e500070b5c749ae693fcf76623a8..9aa54b95b89f96299e65b9cc00149bffe5f2e56a 100644 (file)
--- a/drivers/iio/imu/bmi160/bmi160_core.c
+++ b/drivers/iio/imu/bmi160/bmi160_core.c
@@ -890,6 +890,25 @@ int bmi160_core_probe(struct device *dev, struct regmap *regmap,
 }
 EXPORT_SYMBOL_NS_GPL(bmi160_core_probe, "IIO_BMI160");
 
+static int bmi160_core_runtime_suspend(struct device *dev)
+{
+       struct iio_dev *indio_dev = dev_get_drvdata(dev);
+
+       return iio_device_suspend_triggering(indio_dev);
+}
+
+static int bmi160_core_runtime_resume(struct device *dev)
+{
+       struct iio_dev *indio_dev = dev_get_drvdata(dev);
+
+       return iio_device_resume_triggering(indio_dev);
+}
+
+const struct dev_pm_ops bmi160_core_pm_ops = {
+       RUNTIME_PM_OPS(bmi160_core_runtime_suspend, bmi160_core_runtime_resume, NULL)
+};
+EXPORT_SYMBOL_NS_GPL(bmi160_core_pm_ops, "IIO_BMI160");
+
 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
 MODULE_DESCRIPTION("Bosch BMI160 driver");
 MODULE_LICENSE("GPL v2");

diff --git a/drivers/iio/imu/bmi160/bmi160_i2c.c b/drivers/iio/imu/bmi160/bmi160_i2c.c
index 9fa3a19a8977f7292e48a5ec165986997f60b206..3e2758f4e0d3f88c42dbdc9d59190777550f2a8e 100644 (file)
--- a/drivers/iio/imu/bmi160/bmi160_i2c.c
+++ b/drivers/iio/imu/bmi160/bmi160_i2c.c
@@ -11,6 +11,7 @@
 #include <linux/i2c.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 
 #include "bmi160.h"
@@ -69,6 +70,7 @@ MODULE_DEVICE_TABLE(of, bmi160_of_match);
 static struct i2c_driver bmi160_i2c_driver = {
        .driver = {
                .name                   = "bmi160_i2c",
+               .pm                     = pm_ptr(&bmi160_core_pm_ops),
                .acpi_match_table       = bmi160_acpi_match,
                .of_match_table         = bmi160_of_match,
        },

diff --git a/drivers/iio/imu/bmi160/bmi160_spi.c b/drivers/iio/imu/bmi160/bmi160_spi.c
index ebb586904215bad67c615de9f299df294d0f83ef..3581bd7884833f543a1c2ef4df1d0f784d24031d 100644 (file)
--- a/drivers/iio/imu/bmi160/bmi160_spi.c
+++ b/drivers/iio/imu/bmi160/bmi160_spi.c
@@ -7,6 +7,7 @@
  */
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/spi/spi.h>
 
@@ -61,6 +62,7 @@ static struct spi_driver bmi160_spi_driver = {
                .acpi_match_table       = bmi160_acpi_match,
                .of_match_table         = bmi160_of_match,
                .name                   = "bmi160_spi",
+               .pm                     = pm_ptr(&bmi160_core_pm_ops),
        },
 };
 module_spi_driver(bmi160_spi_driver);