[PATCH 02/11] iio: adc: ltc2309: Improve include relevance

[Jonathan Cameron <jic23@kernel.org>]

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

Based on output of iwyu, drop kernel.h in favor of more specific includes
+ add some others that are only indirectly included from other headers.

Justification for additions:
  #include <asm/byteorder.h>         // for be16_to_cpu
  #include <linux/array_size.h>      // for ARRAY_SIZE
  #include <linux/bits.h>            // for BIT, GENMASK
  #include <linux/dev_printk.h>      // for dev_err, dev_err_probe
  #include <linux/err.h>             // for ERR_PTR, EINVAL, ENODEV, ENOMEM
  #include <linux/mod_devicetable.h> // for i2c_device_id, of_device_id
  #include <linux/types.h>           // for __be16, u8

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Liam Beguin <liambeguin@gmail.com>
---
 drivers/iio/adc/ltc2309.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ltc2309.c b/drivers/iio/adc/ltc2309.c
index 5f0d947d0615..2838e0a9858c 100644
--- a/drivers/iio/adc/ltc2309.c
+++ b/drivers/iio/adc/ltc2309.c
@@ -7,13 +7,20 @@
  *
  * Copyright (c) 2023, Liam Beguin <liambeguin@gmail.com>
  */
+#include <linux/array_size.h>
+#include <linux/bits.h>
 #include <linux/bitfield.h>
+#include <linux/dev_printk.h>
+#include <linux/err.h>
 #include <linux/i2c.h>
 #include <linux/iio/iio.h>
-#include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
 #include <linux/regulator/consumer.h>
+#include <linux/types.h>
+
+#include <asm/byteorder.h>
 
 #define LTC2309_ADC_RESOLUTION	12
 #define LTC2309_INTERNAL_REF_MV 4096
-- 
2.52.0