[PATCH 2/3] pinctrl: pinctrl_stm32: Use GPIOF_UNKNOWN to indicate not mapped pins

[Patrice Chotard]

GPIOF_UNKNOWN becomes a valid pin muxing information to indicate
that a pin is not mapped.

Signed-off-by: Patrice Chotard <patrice.chot...@foss.st.com>
---

 drivers/pinctrl/pinctrl_stm32.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl_stm32.c b/drivers/pinctrl/pinctrl_stm32.c
index 5d8e156d62..373f51f046 100644
--- a/drivers/pinctrl/pinctrl_stm32.c
+++ b/drivers/pinctrl/pinctrl_stm32.c
@@ -220,8 +220,6 @@ static int stm32_pinctrl_get_pin_muxing(struct udevice *dev,
 
        switch (mode) {
        case GPIOF_UNKNOWN:
-               /* should never happen */
-               return -EINVAL;
        case GPIOF_UNUSED:
                snprintf(buf, size, "%s", pinmux_mode[mode]);
                break;
-- 
2.17.1