gpio: pca953x: Revisit header inclusions

Some of the headers are not use, some are missing. Fix that.

Signed-off-by: Andy Shevchenko <[e-mail]>
Signed-off-by: Bartosz Golaszewski <[e-mail]>

drivers/gpio/gpio-pca953x.c

···
  *  Derived from drivers/i2c/chips/pca9539.c
  */
 
-#include <linux/acpi.h>
+#include <linux/atomic.h>
 #include <linux/bitmap.h>
 #include <linux/cleanup.h>
-#include <linux/gpio/consumer.h>
-#include <linux/gpio/driver.h>
+#include <linux/device.h>
+#include <linux/errno.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of_platform.h>
-#include <linux/platform_data/pca953x.h>
+#include <linux/mutex.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 
-#include <asm/unaligned.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
+
+#include <linux/pinctrl/pinconf-generic.h>
+
+#include <linux/platform_data/pca953x.h>
 
 #define PCA953X_INPUT		0x00
 #define PCA953X_OUTPUT		0x01
···
 
 #ifdef CONFIG_GPIO_PCA953X_IRQ
 
+#include <linux/acpi.h>
 #include <linux/dmi.h>
 
 static const struct acpi_gpio_params pca953x_irq_gpios = { 0, 0, true };