[PATCH] linux/gpio/driver.h: some edits for clarity

[Randy Dunlap <rdunlap@infradead.org>]

Fix a few typos and some punctuation.
Also, change CONFIG_OF to CONFIG_OF_GPIO in one comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: linux-gpio@vger.kernel.org
---
 include/linux/gpio/driver.h |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

--- linux-next-20210323.orig/include/linux/gpio/driver.h
+++ linux-next-20210323/include/linux/gpio/driver.h
@@ -227,7 +227,7 @@ struct gpio_irq_chip {
 	/**
 	 * @valid_mask:
 	 *
-	 * If not %NULL holds bitmask of GPIOs which are valid to be included
+	 * If not %NULL, holds bitmask of GPIOs which are valid to be included
 	 * in IRQ domain of the chip.
 	 */
 	unsigned long *valid_mask;
@@ -346,7 +346,7 @@ struct gpio_irq_chip {
  *	output.
  *
  * A gpio_chip can help platforms abstract various sources of GPIOs so
- * they can all be accessed through a common programing interface.
+ * they can all be accessed through a common programming interface.
  * Example sources would be SOC controllers, FPGAs, multifunction
  * chips, dedicated GPIO expanders, and so on.
  *
@@ -435,15 +435,15 @@ struct gpio_chip {
 	/**
 	 * @valid_mask:
 	 *
-	 * If not %NULL holds bitmask of GPIOs which are valid to be used
+	 * If not %NULL, holds bitmask of GPIOs which are valid to be used
 	 * from the chip.
 	 */
 	unsigned long *valid_mask;
 
 #if defined(CONFIG_OF_GPIO)
 	/*
-	 * If CONFIG_OF is enabled, then all GPIO controllers described in the
-	 * device tree automatically may have an OF translation
+	 * If CONFIG_OF_GPIO is enabled, then all GPIO controllers described in
+	 * the device tree automatically may have an OF translation
 	 */
 
 	/**
@@ -508,7 +508,7 @@ extern int gpiochip_add_data_with_key(st
  * for GPIOs will fail rudely.
  *
  * gpiochip_add_data() must only be called after gpiolib initialization,
- * ie after core_initcall().
+ * i.e. after core_initcall().
  *
  * If gc->base is negative, this requests dynamic assignment of
  * a range of valid GPIOs.