pinctrl: pinctrl_stm32: Use GPIOF_UNKNOWN to indicate not mapped pins
GPIOF_UNKNOWN becomes a valid pin muxing information to indicate
that a pin is not mapped.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
diff --git a/drivers/pinctrl/pinctrl_stm32.c b/drivers/pinctrl/pinctrl_stm32.c
index 5d8e156..373f51f 100644
--- a/drivers/pinctrl/pinctrl_stm32.c
+++ b/drivers/pinctrl/pinctrl_stm32.c
@@ -220,8 +220,6 @@
switch (mode) {
case GPIOF_UNKNOWN:
- /* should never happen */
- return -EINVAL;
case GPIOF_UNUSED:
snprintf(buf, size, "%s", pinmux_mode[mode]);
break;