gpio: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-ath79.c b/drivers/gpio/gpio-ath79.c
index f33d4a5..02e56e0 100644
--- a/drivers/gpio/gpio-ath79.c
+++ b/drivers/gpio/gpio-ath79.c
@@ -132,6 +132,7 @@ static int ath79_gpio_irq_set_type(struct irq_data *data,
case IRQ_TYPE_LEVEL_HIGH:
polarity |= mask;
+ /* fall through */
case IRQ_TYPE_LEVEL_LOW:
type |= mask;
break;