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pinctrl: rockchip: Mark expected switch fall-through

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When fall-through warnings was enabled by default the following warning
was starting to show up:

../drivers/pinctrl/pinctrl-rockchip.c: In function ‘rockchip_gpio_set_config’:
../drivers/pinctrl/pinctrl-rockchip.c:2783:3: warning: this statement may fall
 through [-Wimplicit-fallthrough=]
   rockchip_gpio_set_debounce(gc, offset, true);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/pinctrl/pinctrl-rockchip.c:2795:2: note: here
  default:
  ^~~~~~~

Rework so that the compiler doesn't warn about fall-through. Add
'return -ENOTSUPP;' to match the comment.

Fixes: d93512ef0f0e ("Makefile: Globally enable fall-through warning")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Link: https://lore.kernel.org/r/20190726112812.19665-1-anders.roxell@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Anders Roxell 2019-07-26 13:28:12 +02:00 committed by Linus Walleij
parent be65c8bb0c
commit cd927f140d
1 changed files with 1 additions and 0 deletions
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1
drivers/pinctrl/pinctrl-rockchip.c
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@ -2792,6 +2792,7 @@ static int rockchip_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
* still return -ENOTSUPP as before, to make sure the caller
* of gpiod_set_debounce won't change its behaviour.
*/
return -ENOTSUPP;
default:
return -ENOTSUPP;
}