[PATCH 06/11] iio: adc: max11410: Improve relevance of includes

[Jonathan Cameron <jic23@kernel.org>]

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Drop kernel.h in favor of more specific headers and add other headers that
were previously only indirectly included. Also add a forwards definition
of struct regulator as it is only used as an opaque pointer type in this
file.

Justification for new headers from iwyu:
  #include <linux/array_size.h>        // for ARRAY_SIZE
  #include <linux/bitops.h>            // for BIT, GENMASK, __clear_bit
  #include <linux/cleanup.h>           // for guard
  #include <linux/compiler.h>          // for __aligned
  #include <linux/completion.h>        // for complete, init_completion
  #include <linux/iio/iio.h>           // for iio_chan_spec, iio_chan_info...
  #include <linux/iopoll.h>            // for read_poll_timeout
  #include <linux/jiffies.h>           // for msecs_to_jiffies
  #include <linux/kstrtox.h>           // for kstrtobool
  #include <linux/log2.h>              // for order_base_2
  #include <linux/math.h>              // for DIV_ROUND_CLOSEST
  #include <linux/minmax.h>            // for clamp_val, __cmp_op_max
  #include <linux/mod_devicetable.h>   // for of_device_id, spi_device_id
  #include <linux/mutex.h>             // for class_mutex_constructor, mut...
  #include <linux/property.h>          // for fwnode_property_read_u32
  #include <linux/stddef.h>            // for NULL, true
  #include <linux/sysfs.h>             // for sysfs_emit, attribute_group
  #include <linux/types.h>             // for u32, u8, bool, ssize_t, alig...
  struct regulator;

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
---
 drivers/iio/adc/max11410.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/max11410.c b/drivers/iio/adc/max11410.c
index 511b2f14dfaf..c8a9718c4e4b 100644
--- a/drivers/iio/adc/max11410.c
+++ b/drivers/iio/adc/max11410.c
@@ -4,20 +4,36 @@
  *
  * Copyright 2022 Analog Devices Inc.
  */
+#include <linux/array_size.h>
+#include <linux/bitops.h>
 #include <linux/bitfield.h>
+#include <linux/cleanup.h>
+#include <linux/compiler.h>
+#include <linux/completion.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
-#include <linux/kernel.h>
+#include <linux/iopoll.h>
+#include <linux/jiffies.h>
+#include <linux/kstrtox.h>
+#include <linux/log2.h>
+#include <linux/math.h>
+#include <linux/minmax.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/mutex.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/spi/spi.h>
-
+#include <linux/stddef.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
 #include <linux/unaligned.h>
 
 #include <linux/iio/buffer.h>
+#include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include <linux/iio/trigger.h>
 #include <linux/iio/trigger_consumer.h>
@@ -130,6 +146,8 @@ struct max11410_channel_config {
 	bool buffered_vrefn;
 };
 
+struct regulator;
+
 struct max11410_state {
 	struct spi_device *spi_dev;
 	struct iio_trigger *trig;
-- 
2.52.0