[PATCH 01/16] iio:adc:ad_sigma_delta: Move exports into IIO_AD_SIGMA_DELTA namespace

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From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

In order to avoid unnecessary pollution of the global symbol namespace
move the core/library functions into a specific namespace and import
that into the various specific device drivers that use them.

For more information see https://lwn.net/Articles/760045/

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Renato Lui Geh <renatogeh@xxxxxxxxx>
Cc: Michael Hennerich <Michael.Hennerich@xxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
 drivers/iio/adc/ad7124.c         |  1 +
 drivers/iio/adc/ad7192.c         |  1 +
 drivers/iio/adc/ad7780.c         |  1 +
 drivers/iio/adc/ad7791.c         |  1 +
 drivers/iio/adc/ad7793.c         |  1 +
 drivers/iio/adc/ad_sigma_delta.c | 20 ++++++++++----------
 6 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c
index bc2cfa5f9592..998a342d51a6 100644
--- a/drivers/iio/adc/ad7124.c
+++ b/drivers/iio/adc/ad7124.c
@@ -970,3 +970,4 @@ module_spi_driver(ad71124_driver);
 MODULE_AUTHOR("Stefan Popa <stefan.popa@xxxxxxxxxx>");
 MODULE_DESCRIPTION("Analog Devices AD7124 SPI driver");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(IIO_AD_SIGMA_DELTA);
diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c
index 47d3f56edcbc..770b4e59238f 100644
--- a/drivers/iio/adc/ad7192.c
+++ b/drivers/iio/adc/ad7192.c
@@ -1048,3 +1048,4 @@ module_spi_driver(ad7192_driver);
 MODULE_AUTHOR("Michael Hennerich <michael.hennerich@xxxxxxxxxx>");
 MODULE_DESCRIPTION("Analog Devices AD7190, AD7192, AD7193, AD7195 ADC");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_AD_SIGMA_DELTA);
diff --git a/drivers/iio/adc/ad7780.c b/drivers/iio/adc/ad7780.c
index b6e8c8abf6f4..a813fe04787c 100644
--- a/drivers/iio/adc/ad7780.c
+++ b/drivers/iio/adc/ad7780.c
@@ -375,3 +375,4 @@ module_spi_driver(ad7780_driver);
 MODULE_AUTHOR("Michael Hennerich <michael.hennerich@xxxxxxxxxx>");
 MODULE_DESCRIPTION("Analog Devices AD7780 and similar ADCs");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_AD_SIGMA_DELTA);
diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c
index cb579aa89f39..fee8d129a5f0 100644
--- a/drivers/iio/adc/ad7791.c
+++ b/drivers/iio/adc/ad7791.c
@@ -474,3 +474,4 @@ module_spi_driver(ad7791_driver);
 MODULE_AUTHOR("Lars-Peter Clausen <lars@xxxxxxxxxx>");
 MODULE_DESCRIPTION("Analog Devices AD7787/AD7788/AD7789/AD7790/AD7791 ADC driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_AD_SIGMA_DELTA);
diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 0e7ab3fb072a..5f8cb9aaac70 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -867,3 +867,4 @@ module_spi_driver(ad7793_driver);
 MODULE_AUTHOR("Michael Hennerich <michael.hennerich@xxxxxxxxxx>");
 MODULE_DESCRIPTION("Analog Devices AD7793 and similar ADCs");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_AD_SIGMA_DELTA);
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index cd418bd8bd87..ebcd52526cac 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -42,7 +42,7 @@ void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, uint8_t comm)
 	 * to select the channel */
 	sigma_delta->comm = comm & AD_SD_COMM_CHAN_MASK;
 }
-EXPORT_SYMBOL_GPL(ad_sd_set_comm);
+EXPORT_SYMBOL_NS_GPL(ad_sd_set_comm, IIO_AD_SIGMA_DELTA);
 
 /**
  * ad_sd_write_reg() - Write a register
@@ -94,7 +94,7 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ad_sd_write_reg);
+EXPORT_SYMBOL_NS_GPL(ad_sd_write_reg, IIO_AD_SIGMA_DELTA);
 
 static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,
 	unsigned int reg, unsigned int size, uint8_t *val)
@@ -171,7 +171,7 @@ int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta,
 out:
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ad_sd_read_reg);
+EXPORT_SYMBOL_NS_GPL(ad_sd_read_reg, IIO_AD_SIGMA_DELTA);
 
 /**
  * ad_sd_reset() - Reset the serial interface
@@ -199,7 +199,7 @@ int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ad_sd_reset);
+EXPORT_SYMBOL_NS_GPL(ad_sd_reset, IIO_AD_SIGMA_DELTA);
 
 int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
 	unsigned int mode, unsigned int channel)
@@ -238,7 +238,7 @@ int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ad_sd_calibrate);
+EXPORT_SYMBOL_NS_GPL(ad_sd_calibrate, IIO_AD_SIGMA_DELTA);
 
 /**
  * ad_sd_calibrate_all() - Performs channel calibration
@@ -262,7 +262,7 @@ int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(ad_sd_calibrate_all);
+EXPORT_SYMBOL_NS_GPL(ad_sd_calibrate_all, IIO_AD_SIGMA_DELTA);
 
 /**
  * ad_sigma_delta_single_conversion() - Performs a single data conversion
@@ -337,7 +337,7 @@ int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
 
 	return IIO_VAL_INT;
 }
-EXPORT_SYMBOL_GPL(ad_sigma_delta_single_conversion);
+EXPORT_SYMBOL_NS_GPL(ad_sigma_delta_single_conversion, IIO_AD_SIGMA_DELTA);
 
 static int ad_sd_buffer_postenable(struct iio_dev *indio_dev)
 {
@@ -465,7 +465,7 @@ int ad_sd_validate_trigger(struct iio_dev *indio_dev, struct iio_trigger *trig)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(ad_sd_validate_trigger);
+EXPORT_SYMBOL_NS_GPL(ad_sd_validate_trigger, IIO_AD_SIGMA_DELTA);
 
 static int devm_ad_sd_probe_trigger(struct device *dev, struct iio_dev *indio_dev)
 {
@@ -524,7 +524,7 @@ int devm_ad_sd_setup_buffer_and_trigger(struct device *dev, struct iio_dev *indi
 
 	return devm_ad_sd_probe_trigger(dev, indio_dev);
 }
-EXPORT_SYMBOL_GPL(devm_ad_sd_setup_buffer_and_trigger);
+EXPORT_SYMBOL_NS_GPL(devm_ad_sd_setup_buffer_and_trigger, IIO_AD_SIGMA_DELTA);
 
 /**
  * ad_sd_init() - Initializes a ad_sigma_delta struct
@@ -545,7 +545,7 @@ int ad_sd_init(struct ad_sigma_delta *sigma_delta, struct iio_dev *indio_dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(ad_sd_init);
+EXPORT_SYMBOL_NS_GPL(ad_sd_init, IIO_AD_SIGMA_DELTA);
 
 MODULE_AUTHOR("Lars-Peter Clausen <lars@xxxxxxxxxx>");
 MODULE_DESCRIPTION("Analog Devices Sigma-Delta ADCs");
-- 
2.35.1




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