For testing purposes keep the output value when switching to input.
This allows us to manipulate the input value via the gpio command.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
v2:
new patch
---
drivers/gpio/sandbox.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/sandbox.c b/drivers/gpio/sandbox.c
index c2f80472b8..eb2600de31 100644
--- a/drivers/gpio/sandbox.c
+++ b/drivers/gpio/sandbox.c
@@ -185,7 +185,15 @@ static int sb_gpio_set_dir_flags(struct udevice *dev,
unsigned int offset,
dir_flags = get_gpio_dir_flags(dev, offset);
- *dir_flags = flags;
+ /*
+ * For testing purposes keep the output value when switching to input.
+ * This allows us to manipulate the input value via the gpio command.
+ */
+ if (flags & GPIOD_IS_IN)
+ *dir_flags = (flags & ~GPIOD_IS_OUT_ACTIVE) |
+ (*dir_flags & GPIOD_IS_OUT_ACTIVE);
+ else
+ *dir_flags = flags;
return 0;
}
--
2.28.0
