From 234b03f3a965b3e3ef5d7efb42c7d4c45bb401ef Mon Sep 17 00:00:00 2001
From: Patrice Chotard <patrice.chotard@foss.st.com>
Date: Fri, 22 Apr 2022 09:38:30 +0200
Subject: [PATCH] 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>
---
 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;
-- 
2.39.5