gpio: fix kernel-doc notation warning for 'request_key'
Fix kernel-doc warning for missing struct member 'request_key':
../include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
Fixes: 39c3fd58952d ("kernel/irq: Extend lockdep class for request mutex")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 0ea328e..4a4f410 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -66,9 +66,15 @@ struct gpio_irq_chip {
/**
* @lock_key:
*
- * Per GPIO IRQ chip lockdep classes.
+ * Per GPIO IRQ chip lockdep class for IRQ lock.
*/
struct lock_class_key *lock_key;
+
+ /**
+ * @request_key:
+ *
+ * Per GPIO IRQ chip lockdep class for IRQ request.
+ */
struct lock_class_key *request_key;
/**