pinctrl: Replace kernel.h by what is actually being used

The kernel.h is a mess of unrelated things and we only used it
as a proxy to array_size.h, hence switch from former to the latter.

While at it, group and sort the headers where it makes sense.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/pinctrl/core.c

@@ -12,12 +12,12 @@
  */
 #define pr_fmt(fmt) "pinctrl core: " fmt
 
+#include <linux/array_size.h>
 #include <linux/debugfs.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/export.h>
 #include <linux/init.h>
-#include <linux/kernel.h>
 #include <linux/kref.h>
 #include <linux/list.h>
 #include <linux/seq_file.h>

drivers/pinctrl/pinconf-generic.c

@@ -10,17 +10,19 @@
 
 #define pr_fmt(fmt) "generic pinconfig core: " fmt
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/slab.h>
+#include <linux/array_size.h>
 #include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinconf.h>
-#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/module.h>
 #include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/seq_file.h>
+
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+
 #include "core.h"
 #include "pinconf.h"
 #include "pinctrl-utils.h"

drivers/pinctrl/pinconf.c

@@ -9,16 +9,18 @@
  */
 #define pr_fmt(fmt) "pinconfig core: " fmt
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/slab.h>
+#include <linux/array_size.h>
 #include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/module.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
+
 #include <linux/pinctrl/machine.h>
-#include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+
 #include "core.h"
 #include "pinconf.h"
 

drivers/pinctrl/pinctrl-utils.c

@@ -6,12 +6,14 @@
  *
  * Author: Laxman Dewangan <ldewangan@nvidia.com>
  */
+#include <linux/array_size.h>
 #include <linux/device.h>
 #include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/pinctrl/pinctrl.h>
 #include <linux/of.h>
 #include <linux/slab.h>
+
+#include <linux/pinctrl/pinctrl.h>
+
 #include "core.h"
 #include "pinctrl-utils.h"
 

drivers/pinctrl/pinmux.c

@@ -12,12 +12,12 @@
  */
 #define pr_fmt(fmt) "pinmux core: " fmt
 
+#include <linux/array_size.h>
 #include <linux/ctype.h>
 #include <linux/debugfs.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/init.h>
-#include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/radix-tree.h>

include/linux/pinctrl/machine.h

@@ -11,7 +11,7 @@
 #ifndef __LINUX_PINCTRL_MACHINE_H
 #define __LINUX_PINCTRL_MACHINE_H
 
-#include <linux/kernel.h>	/* ARRAY_SIZE() */
+#include <linux/array_size.h>
 
 #include <linux/pinctrl/pinctrl-state.h>